This document provides specifications for Texas Instruments' μA7800 series of positive voltage regulators. The μA7800 series includes 3-terminal fixed output voltage regulators that can provide up to 1.5A of output current. The document includes details on package options, electrical characteristics, ordering information, and application recommendations for the voltage regulators.
O documento discute conceitos básicos de mensuração de custos em saúde, como o que medir, por que medir e como medir. Apresenta também exemplos práticos de análises de custo-efetividade em diferentes situações clínicas para tomada de decisões.
Este documento discute várias doenças respiratórias, incluindo bronquite, rinite alérgica e pneumonia. Ele explica os sintomas e causas de cada doença e fornece dicas de prevenção, como evitar fumar, beber demais, exposição a mudanças bruscas de temperatura e manter ambientes arejados e livres de poeira e produtos químicos. O documento conclui que as doenças respiratórias precisam de tratamento precoce e medidas preventivas para melhorar a saúde
O documento discute asma, incluindo sua definição, características, fatores desencadeantes, epidemiologia, fisiopatologia, diagnóstico, classificação, objetivos de tratamento, tratamento inicial e de manutenção com fármacos, tratamento de crises e asma de difícil controle.
Este documento discute as melhores práticas para limpeza de feridas, incluindo os princípios TIME e o uso de agentes não iônicos em vez de antissépticos. Descreve os objetivos da limpeza de feridas e as características e efeitos dos diferentes agentes de limpeza como soro fisiológico, solução de Ringer, peróxido de hidrogênio e iodopovidona.
O documento discute a insuficiência renal aguda e crônica. A insuficiência renal aguda pode ser pré-renal, pós-renal ou renal, e suas principais causas incluem diminuição do fluxo sanguíneo renal, obstrução do fluxo urinário e lesões renais. A insuficiência renal crônica causa progressiva e irreversível dos rins. O documento também descreve os estágios da doença renal crônica e seus principais sintomas e tratamentos.
O documento fornece uma visão geral detalhada do edema agudo do pulmão cardiogênico, incluindo sua fisiopatologia, apresentação clínica, diagnóstico diferencial, exames auxiliares e tratamento com foco no manejo clínico inicial e medicamentoso.
O documento apresenta um guia didático sobre dimensionamento de aterros sanitários, abordando conceitos sobre resíduos sólidos, tipos, geração, importância para saúde e meio ambiente, além de tecnologias de tratamento e destinação final como aterros controlados e sanitários.
Um FPSO é uma plataforma flutuante que produz, armazena e transfere petróleo e gás. Ela consiste de módulos de processamento no convés que separam o óleo, gás e água, comprimindo e tratando o gás e óleo. O documento descreve especificamente um módulo de produção que controla os poços e lança e recebe dispositivos de limpeza de tubulações chamados "pigs".
O documento discute conceitos básicos de mensuração de custos em saúde, como o que medir, por que medir e como medir. Apresenta também exemplos práticos de análises de custo-efetividade em diferentes situações clínicas para tomada de decisões.
Este documento discute várias doenças respiratórias, incluindo bronquite, rinite alérgica e pneumonia. Ele explica os sintomas e causas de cada doença e fornece dicas de prevenção, como evitar fumar, beber demais, exposição a mudanças bruscas de temperatura e manter ambientes arejados e livres de poeira e produtos químicos. O documento conclui que as doenças respiratórias precisam de tratamento precoce e medidas preventivas para melhorar a saúde
O documento discute asma, incluindo sua definição, características, fatores desencadeantes, epidemiologia, fisiopatologia, diagnóstico, classificação, objetivos de tratamento, tratamento inicial e de manutenção com fármacos, tratamento de crises e asma de difícil controle.
Este documento discute as melhores práticas para limpeza de feridas, incluindo os princípios TIME e o uso de agentes não iônicos em vez de antissépticos. Descreve os objetivos da limpeza de feridas e as características e efeitos dos diferentes agentes de limpeza como soro fisiológico, solução de Ringer, peróxido de hidrogênio e iodopovidona.
O documento discute a insuficiência renal aguda e crônica. A insuficiência renal aguda pode ser pré-renal, pós-renal ou renal, e suas principais causas incluem diminuição do fluxo sanguíneo renal, obstrução do fluxo urinário e lesões renais. A insuficiência renal crônica causa progressiva e irreversível dos rins. O documento também descreve os estágios da doença renal crônica e seus principais sintomas e tratamentos.
O documento fornece uma visão geral detalhada do edema agudo do pulmão cardiogênico, incluindo sua fisiopatologia, apresentação clínica, diagnóstico diferencial, exames auxiliares e tratamento com foco no manejo clínico inicial e medicamentoso.
O documento apresenta um guia didático sobre dimensionamento de aterros sanitários, abordando conceitos sobre resíduos sólidos, tipos, geração, importância para saúde e meio ambiente, além de tecnologias de tratamento e destinação final como aterros controlados e sanitários.
Um FPSO é uma plataforma flutuante que produz, armazena e transfere petróleo e gás. Ela consiste de módulos de processamento no convés que separam o óleo, gás e água, comprimindo e tratando o gás e óleo. O documento descreve especificamente um módulo de produção que controla os poços e lança e recebe dispositivos de limpeza de tubulações chamados "pigs".
1) O documento discute distúrbios hidroeletrolíticos e ácido-básico em pediatria, focando na desidratação, suas classificações e manifestações clínicas.
2) A desidratação pode ser isonatrêmica, hipernatrêmica ou hiponatrêmica, dependendo da concentração sérica de sódio, e causa efeitos como diminuição da elasticidade da pele.
3) O texto descreve sinais e sintomas de cada tipo de desidratação, formas de avaliação clínica e
Triangulo de evaluación pediátrica. SEUP. Urgencias de Pediatría.Iñaki Alegria Coll
En los países en vías de desarrollo encontramos hospitales dotados de escasos recursos económicos y personales, escasa preparación y formación del personal, gran demanda asistencial y gravedad de pacientes. La mayoría de muertes en estos hospitales ocurren en las primeras 24 horas de ingreso, es por ello que los niños graves deberían ser identificados a la llegada e instaurar de manera inmediata el tratamiento adecuado. Todo ello obliga a una priorización de la atención, en la que el Triángulo de Evaluación Pediátrica (TEP) ha demostrado ser una medida eficaz.
Distúrbios respiratórios agudos no P.S. infantil: laringite x crise asmáticaLaped Ufrn
Distúrbios respiratórios agudos no P.S infantil: laringite x crise asmática - Aula apresentada durante a Reunião Científica da Liga Acadêmica de Pediatria da UFRN - LAPED UFRN - Natal, Brasil.
Seminário (Insuficiência Renal Aguda e Crônica) cuidadoaoadulto
O documento discute insuficiência renal aguda e crônica. A IRA é definida como uma perda súbita da função renal que pode ser reversível com tratamento. A IRC é geralmente o resultado de destruição renal gradual e pode progredir para estágios terminais requerendo diálise ou transplante. O documento também fornece detalhes sobre anatomia renal, causas, sinais e sintomas e abordagens de tratamento para ambas as condições.
O documento resume as principais informações sobre a sarcoidose, uma doença granulomatosa sistêmica de etiologia desconhecida. Apresenta os achados clínicos, diagnóstico, envolvimento de órgãos e tratamento, destacando o pulmão como o principal órgão acometido e a prednisona como primeira opção terapêutica.
Glomerulonefrite é uma doença renal que causa inflamação nos glomérulos, podendo ser aguda ou crônica. A aguda é mais comum em crianças e é causada muitas vezes por infecções, enquanto a crônica pode ter início agudo e é caracterizada por uma inflamação persistente. Ambas apresentam sintomas como hematúria, edema e hipertensão, sendo o tratamento focado em controlar a inflamação e proteger os rins.
O documento discute a anatomia, fisiologia e classificação de feridas, incluindo as etapas do processo de cicatrização. Fatores que influenciam a cicatrização são descritos, como condições locais e sistêmicas. Aspectos éticos no tratamento de feridas também são abordados.
O documento descreve a fisiopatologia, sinais e sintomas, diagnóstico e tratamento do edema agudo de pulmão. O edema agudo de pulmão ocorre quando há acúmulo anormal de fluidos nos pulmões, resultando em hipoxemia, complacência pulmonar diminuída e trabalho respiratório aumentado. O diagnóstico é clínico e envolve exames como gasometria arterial e radiografia de tórax. O tratamento inclui diuréticos, oxigênio, ventilação não-invasiva e
O documento discute conceitos básicos de toxicologia, incluindo definições de termos como agente tóxico, xenobiótico e intoxicação. Também descreve as fases da intoxicação - exposição, toxicocinética, toxicodinâmica e clínica - e fatores que influenciam cada fase.
O documento descreve várias patologias que podem acometer a traqueia, incluindo estenose traqueal, granulomatose de Wegener, amiloidose, policondrite recidivante, divertículo traqueal, traqueobroncomegalia e tumores traqueais. Menciona os achados clínicos, de imagem e histopatológicos característicos de cada condição.
O documento discute a importância da avaliação pré-operatória para reduzir riscos, com foco na anamnese e exame físico detalhados para identificar comorbidades. Realizar exames complementares de forma individualizada de acordo com a idade, comorbidades e tipo de cirurgia planejada. A avaliação pré-operatória é fundamental para o sucesso da cirurgia e de responsabilidade do cirurgião.
O documento discute infeções do sistema urinário, abordando suas causas, sintomas e tratamentos. Também fornece recomendações sobre prevenção, incluindo uma alimentação saudável e hábitos de higiene.
O documento discute a Doença Pulmonar Obstrutiva Crônica (DPOC), definindo-a como uma doença pulmonar que bloqueia o fluxo de ar, tornando a respiração difícil. Apresenta suas principais causas, sintomas, exames, tratamentos e formas de prevenção, destacando o tabagismo como principal fator de risco.
O documento discute o caso de um paciente com tuberculose, JLCC, que não está respondendo adequadamente ao tratamento. Provavelmente, ele está desenvolvendo resistência aos medicamentos devido ao histórico de tratamentos anteriores não supervisionados. A conduta apropriada é investigar a resistência aos medicamentos, notificar o caso e encaminhar JLCC para um serviço de referência para o tratamento adequado.
O documento apresenta os fundamentos do equilíbrio ácido-base (EAB) e da interpretação da gasometria arterial. Discute os princípios básicos do EAB, a sistematização da interpretação da gasometria arterial e os componentes do EAB como pH, PaCO2 e HCO3-. Também aborda as alterações ácido-base como acidose e alcalose respiratória e metabólica, a avaliação e compensação do EAB.
This document provides specifications for the MAX232 dual driver/receiver IC, which includes a capacitive voltage generator to supply standard TIA/EIA-232 voltage levels from a single 5V supply. It operates up to 120kbps and has ESD protection exceeding 15kV. The MAX232 contains two drivers, two receivers, and a charge pump to convert voltages for serial communication interfaces.
This document provides specifications for the μA723 precision voltage regulator integrated circuit, including:
- Electrical characteristics such as input/output voltage ranges, current limits, and temperature stability.
- Application information such as resistor values needed for standard output voltages and formulas for calculating intermediate voltages.
- A functional block diagram and schematic showing the internal components and typical external connections.
- Packaging and temperature rating options for the chip in plastic DIP and small outline packages.
The document provides specifications for the L7800 series of positive voltage regulators, including:
- Output voltages ranging from 5V to 24V with output current up to 1.5A
- Features such as thermal overload protection, short circuit protection, and output transition safe operating area protection
- Package options including TO-220, TO-220FP, TO-3, and D2PAK
- Electrical characteristics like line and load regulation, output voltage range, quiescent current, and short circuit current are provided for each fixed output voltage variant.
1) O documento discute distúrbios hidroeletrolíticos e ácido-básico em pediatria, focando na desidratação, suas classificações e manifestações clínicas.
2) A desidratação pode ser isonatrêmica, hipernatrêmica ou hiponatrêmica, dependendo da concentração sérica de sódio, e causa efeitos como diminuição da elasticidade da pele.
3) O texto descreve sinais e sintomas de cada tipo de desidratação, formas de avaliação clínica e
Triangulo de evaluación pediátrica. SEUP. Urgencias de Pediatría.Iñaki Alegria Coll
En los países en vías de desarrollo encontramos hospitales dotados de escasos recursos económicos y personales, escasa preparación y formación del personal, gran demanda asistencial y gravedad de pacientes. La mayoría de muertes en estos hospitales ocurren en las primeras 24 horas de ingreso, es por ello que los niños graves deberían ser identificados a la llegada e instaurar de manera inmediata el tratamiento adecuado. Todo ello obliga a una priorización de la atención, en la que el Triángulo de Evaluación Pediátrica (TEP) ha demostrado ser una medida eficaz.
Distúrbios respiratórios agudos no P.S. infantil: laringite x crise asmáticaLaped Ufrn
Distúrbios respiratórios agudos no P.S infantil: laringite x crise asmática - Aula apresentada durante a Reunião Científica da Liga Acadêmica de Pediatria da UFRN - LAPED UFRN - Natal, Brasil.
Seminário (Insuficiência Renal Aguda e Crônica) cuidadoaoadulto
O documento discute insuficiência renal aguda e crônica. A IRA é definida como uma perda súbita da função renal que pode ser reversível com tratamento. A IRC é geralmente o resultado de destruição renal gradual e pode progredir para estágios terminais requerendo diálise ou transplante. O documento também fornece detalhes sobre anatomia renal, causas, sinais e sintomas e abordagens de tratamento para ambas as condições.
O documento resume as principais informações sobre a sarcoidose, uma doença granulomatosa sistêmica de etiologia desconhecida. Apresenta os achados clínicos, diagnóstico, envolvimento de órgãos e tratamento, destacando o pulmão como o principal órgão acometido e a prednisona como primeira opção terapêutica.
Glomerulonefrite é uma doença renal que causa inflamação nos glomérulos, podendo ser aguda ou crônica. A aguda é mais comum em crianças e é causada muitas vezes por infecções, enquanto a crônica pode ter início agudo e é caracterizada por uma inflamação persistente. Ambas apresentam sintomas como hematúria, edema e hipertensão, sendo o tratamento focado em controlar a inflamação e proteger os rins.
O documento discute a anatomia, fisiologia e classificação de feridas, incluindo as etapas do processo de cicatrização. Fatores que influenciam a cicatrização são descritos, como condições locais e sistêmicas. Aspectos éticos no tratamento de feridas também são abordados.
O documento descreve a fisiopatologia, sinais e sintomas, diagnóstico e tratamento do edema agudo de pulmão. O edema agudo de pulmão ocorre quando há acúmulo anormal de fluidos nos pulmões, resultando em hipoxemia, complacência pulmonar diminuída e trabalho respiratório aumentado. O diagnóstico é clínico e envolve exames como gasometria arterial e radiografia de tórax. O tratamento inclui diuréticos, oxigênio, ventilação não-invasiva e
O documento discute conceitos básicos de toxicologia, incluindo definições de termos como agente tóxico, xenobiótico e intoxicação. Também descreve as fases da intoxicação - exposição, toxicocinética, toxicodinâmica e clínica - e fatores que influenciam cada fase.
O documento descreve várias patologias que podem acometer a traqueia, incluindo estenose traqueal, granulomatose de Wegener, amiloidose, policondrite recidivante, divertículo traqueal, traqueobroncomegalia e tumores traqueais. Menciona os achados clínicos, de imagem e histopatológicos característicos de cada condição.
O documento discute a importância da avaliação pré-operatória para reduzir riscos, com foco na anamnese e exame físico detalhados para identificar comorbidades. Realizar exames complementares de forma individualizada de acordo com a idade, comorbidades e tipo de cirurgia planejada. A avaliação pré-operatória é fundamental para o sucesso da cirurgia e de responsabilidade do cirurgião.
O documento discute infeções do sistema urinário, abordando suas causas, sintomas e tratamentos. Também fornece recomendações sobre prevenção, incluindo uma alimentação saudável e hábitos de higiene.
O documento discute a Doença Pulmonar Obstrutiva Crônica (DPOC), definindo-a como uma doença pulmonar que bloqueia o fluxo de ar, tornando a respiração difícil. Apresenta suas principais causas, sintomas, exames, tratamentos e formas de prevenção, destacando o tabagismo como principal fator de risco.
O documento discute o caso de um paciente com tuberculose, JLCC, que não está respondendo adequadamente ao tratamento. Provavelmente, ele está desenvolvendo resistência aos medicamentos devido ao histórico de tratamentos anteriores não supervisionados. A conduta apropriada é investigar a resistência aos medicamentos, notificar o caso e encaminhar JLCC para um serviço de referência para o tratamento adequado.
O documento apresenta os fundamentos do equilíbrio ácido-base (EAB) e da interpretação da gasometria arterial. Discute os princípios básicos do EAB, a sistematização da interpretação da gasometria arterial e os componentes do EAB como pH, PaCO2 e HCO3-. Também aborda as alterações ácido-base como acidose e alcalose respiratória e metabólica, a avaliação e compensação do EAB.
This document provides specifications for the MAX232 dual driver/receiver IC, which includes a capacitive voltage generator to supply standard TIA/EIA-232 voltage levels from a single 5V supply. It operates up to 120kbps and has ESD protection exceeding 15kV. The MAX232 contains two drivers, two receivers, and a charge pump to convert voltages for serial communication interfaces.
This document provides specifications for the μA723 precision voltage regulator integrated circuit, including:
- Electrical characteristics such as input/output voltage ranges, current limits, and temperature stability.
- Application information such as resistor values needed for standard output voltages and formulas for calculating intermediate voltages.
- A functional block diagram and schematic showing the internal components and typical external connections.
- Packaging and temperature rating options for the chip in plastic DIP and small outline packages.
The document provides specifications for the L7800 series of positive voltage regulators, including:
- Output voltages ranging from 5V to 24V with output current up to 1.5A
- Features such as thermal overload protection, short circuit protection, and output transition safe operating area protection
- Package options including TO-220, TO-220FP, TO-3, and D2PAK
- Electrical characteristics like line and load regulation, output voltage range, quiescent current, and short circuit current are provided for each fixed output voltage variant.
The SN75176A is a bidirectional transceiver that operates from a single 5V supply. It combines a 3-state differential line driver and differential line receiver. The driver can handle loads up to 60mA and features current limiting and thermal shutdown protection. The receiver has a minimum input impedance of 12kΩ and input sensitivity of ±200mV. It is designed for use on multipoint bus lines in noisy environments.
uA741 General Purpose Operational AmplifierYong Heui Cho
The μA741 operational amplifier is described, including:
1) It is a general-purpose op-amp featuring offset voltage nulling and high common-mode input voltage range, making it suitable for voltage follower applications.
2) It has short-circuit protection, internal frequency compensation for stability without external components, and low power consumption.
3) It is available in various temperature ranges and packaging options.
Original Opto TLP185GB TLP185G TLP185 P185 185 SOP-4 NewAUTHELECTRONIC
The TLP185 is a small outline photocoupler consisting of a gallium arsenide infrared emitting diode optically coupled to a photo transistor. It is suitable for high-density surface mount applications due to its smaller size compared to DIP packages. It has a minimum current transfer ratio of 50% and isolation voltage of 3750Vrms. The document provides detailed electrical and thermal characteristics, diagrams, and recommendations for soldering and storage of the TLP185 photocoupler.
Original Logic IC SN74LVC14A SN54LVC14A 74LVC14A 54LVC14A SOP-14 New Texas In...AUTHELECTRONIC
The document provides information on the SN54LVC14A and SN74LVC14A hex Schmitt-trigger inverter integrated circuits. It describes their operating voltage ranges from 1.65V to 3.6V, maximum propagation delay of 6.4ns at 3.3V, ESD protection exceeding 2000V human-body and 200V machine models, and thermal characteristics with package impedance ranging from 47°C/W to 127°C/W. Ordering information and packaging details are provided for various operating temperature ranges from -55°C to 125°C. Electrical characteristics like input thresholds, output voltages, input and output currents, and input capacitance are specified over operating conditions.
This document summarizes specifications for SN5414, SN54LS14, SN7414, and SN74LS14 hex Schmitt-trigger inverters. It includes:
- Electrical characteristics such as input/output voltage thresholds, propagation delays, output current limits.
- Recommended operating conditions such as supply voltage and temperature ranges.
- Package options and dimensions, pinout diagrams, logic diagrams, and schematics.
- Ordering information, production and quality control data, and measurement procedure notes.
The LM79XX series are 3-terminal negative regulators that provide -5V, -12V, and -15V outputs. They require only one external component, an output compensation capacitor. The regulators have internal current limiting and thermal shutdown protection. They are packaged in a TO-220 case and can supply up to 1.5A of output current with good line and load regulation.
The document describes the UCC3895 BiCMOS advanced phase-shift PWM controller. It has features such as programmable output turn-on delay, adaptive delay set, bidirectional oscillator synchronization, and voltage-mode or current-mode control. It can operate at frequencies up to 1 MHz with typical operating current of 5 mA at 500 kHz. The UCC3895 is a phase-shift PWM controller that implements full-bridge power stage control by phase shifting one half-bridge with respect to the other, allowing constant frequency pulse-width modulation with zero-voltage switching for high efficiency at high frequencies. It improves on previous controller families with additional features such as enhanced control logic and adaptive delay set.
The document summarizes the features and specifications of the SPX29300/01/02/03 3A low dropout voltage regulators. Key points:
- They are 3A voltage regulators with a low dropout voltage of 450mV at 3A output current, designed for low voltage applications requiring fast response times.
- Features include adjustable and fixed output options, reverse battery and overcurrent protection, tight load and line regulation, and fast transient response.
- Electrical specifications include 1% output accuracy, low quiescent current, and temperature coefficients.
- Applications include powering computer components, high efficiency power supplies, and battery chargers.
- Typical circuits shown regulate the output voltage via feedback resistors
The document describes the TPS3305 family of dual processor supervisors. It provides:
- Monitoring of two independent supply voltages like 3.3V/1.8V, 3.3V/2.5V or 3.3V/5V.
- A reset output that is asserted when supply voltage rises above 1.1V or if the monitored sense voltages fall below their threshold.
- An internal watchdog timer that will assert reset if not retriggered within 1.6 seconds.
- Packaging in 8-pin MSOP or SO packages for operation from -40°C to 85°C.
This document provides information on NE555, SA555, and SE555 precision timing circuits. It can summarize as follows:
1) The NE555, SA555, and SE555 circuits are precision timing devices capable of producing accurate time delays or oscillations through monostable or astable operation using external resistor-capacitor networks.
2) They have applications that range from microseconds to hours timing and include features like adjustable duty cycle and resettable timing.
3) The documents provides specifications, electrical characteristics, and operating conditions for the three devices which are designed to be interchangeable precision timing circuits.
Original N-channel 650 V 0.230 Ohm 12 A MDmesh V Power MOSFET in DPAK DPAK ST...AUTHELECTRONIC
Original N-channel 650 V 0.230 Ohm 12 A MDmesh V Power MOSFET in DPAK DPAK STF16N65M5 16N65M5 16N65 710V 12A TO-220FP New STMicroelectronics
https://authelectronic.com/original-n-channel-650-v-0-230-ohm-12-a-mdmesh-v-power-mosfet-in-dpak-dpak-stf16n65m5-16n65m5-16n65-710v-12a-to-220fp-new-stmicroelectronics
This document provides specifications for the HGTG30N60A4D, a 600V, SMPS series N-channel IGBT with an anti-parallel hyperfast diode. The IGBT combines the high input impedance of a MOSFET and the low on-state conduction loss of a bipolar transistor. It is optimized for high frequency switch mode power supplies up to 200kHz and has low conduction losses, making it suitable for applications requiring efficient high voltage switching. The document includes maximum ratings, electrical specifications, and typical performance curves characterizing the device.
Original Opto ACPL-T350 AT350 T350 350 DIP-8 New AVAGOAUTHELECTRONIC
The document describes the ACPL-T350 optocoupler, which contains a GaAsP LED optically coupled to an integrated circuit output stage. It is suited for driving power devices like IGBTs and MOSFETs in applications such as motor controls. Key specifications include a 2.5A peak output current, 15kV/μs CMR, 500ns switching speeds, and an operating temperature range of -40°C to 100°C. The document provides detailed information on electrical characteristics, insulation ratings, packaging, and ordering options.
Original N Channel Mosfet FQD10N60C STD10NM60N 10NM60 10N60 10A 600V TO-252 N...AUTHELECTRONIC
Original N Channel Mosfet FQD10N60C STD10NM60N 10NM60 10N60 10A 600V TO-252 New ST
https://authelectronic.com/original-n-channel-mosfet-fqd10n60c-std10nm60n-10nm60-10n60-10a-600v-to-252-new-st
This document provides a summary of the L293 and L293D integrated circuits. The L293 and L293D are quadruple half-H drivers designed to provide bidirectional drive currents of up to 1A and 600mA respectively. They can be used to drive inductive loads such as relays, solenoids, DC motors, and stepping motors. Key features include a wide supply voltage range of 4.5V to 36V, separate logic and output supplies, internal ESD protection, and thermal shutdown protection. The document provides pinout diagrams, electrical specifications, and an application circuit for driving a two-phase motor.
The ACS712 is a linear current sensor that outputs an analog voltage signal proportional to the sensed current. It senses current flowing through a copper conductor near the die and converts it to a voltage using an integrated Hall IC. It provides electrical isolation between the current input pins and other pins. Typical applications include motor control, load detection, and overcurrent protection.
This document describes the UC1907, UC2907, and UC3907 load share controller ICs. These ICs allow multiple independent power modules to share load current proportionately by controlling each module's power stage based on a common current share bus voltage. Key features include accurate voltage and current sensing and amplification, adjustable current sharing through independent voltage feedback loops, and designation of a master module to ensure current matching within 2.5% across modules. The IC resides on each power module to provide closed-loop voltage control based on the current share bus signal.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
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1. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D 3-Terminal Regulators
D Output Current up to 1.5 A
D Internal Thermal-Overload Protection
D High Power-Dissipation Capability
D Internal Short-Circuit Current Limiting
D Output Transistor Safe-Area Compensation
KTE PACKAGE
(TOP VIEW)
OUTPUT
COMMON
INPUT
COMMON
OUTPUT
KC (TO-220) PACKAGE
(TOP VIEW)
INPUT
COMMON
COMMON
OUTPUT
KCS (TO-220) PACKAGE
(TOP VIEW)
INPUT
COMMON
COMMON
description/ordering information
This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications.
These applications include on-card regulation for elimination of noise and distribution problems associated with
single-point regulation. Each of these regulators can deliver up to 1.5 A of output current. The internal
current-limiting and thermal-shutdown features of these regulators essentially make them immune to overload.
In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain
adjustable output voltages and currents, and also can be used as the power-pass element in precision
regulators.
ORDERING INFORMATION
TJ
VO(NOM)
(V)
PACKAGE† ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
POWER-FLEX (KTE) Reel of 2000 µA7805CKTER µA7805C
5 TO-220 (KC) Tube of 50 µA7805CKC
µA7805C
TO-220, short shoulder (KCS) Tube of 20 µA7805CKCS
µA7805C
POWER-FLEX (KTE) Reel of 2000 µA7808CKTER µA7808C
8 TO-220 (KC) Tube of 50 µA7808CKC
µA7808C
TO-220, short shoulder (KCS) Tube of 20 µA7808CKCS
µA7808C
10
POWER-FLEX (KTE) Reel of 2000 µA7810CKTER µA7810C
0°C to 125°C
10
TO-220 (KC) Tube of 50 µA7810CKC µA7810C
0°C to 125°C
POWER-FLEX (KTE) Reel of 2000 µA7812CKTER µA7812C
12 TO-220 (KC) Tube of 50 µA7812CKC
µA7812C
TO-220, short shoulder (KCS) Tube of 20 µA7812CKCS
µA7812C
POWER-FLEX (KTE) Reel of 2000 µA7815CKTER µA7815C
15 TO-220 (KC) Tube of 50 µA7815CKC
µA7815C
TO-220, short shoulder (KCS) Tube of 20 µA7815CKCS
µA7815C
24
POWER-FLEX (KTE) Reel of 2000 µA7824CKTER µA7824C
24
TO-220 (KC) Tube of 50 µA7824CKC µA7824C
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2003, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
2. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic
INPUT
OUTPUT
COMMON
absolute maximum ratings over virtual junction temperature range (unless otherwise noted)†
Input voltage, VI: µA7824C 40 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All others 35 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, TJ 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
package thermal data (see Note 1)
PACKAGE BOARD θJC θJA
POWER-FLEX (KTE) High K, JESD 51-5 3°C/W 23°C/W
TO-220 (KC/KCS) High K, JESD 51-5 3°C/W 19°C/W
NOTE 1: Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN MAX UNIT
µA7805C 7 25
µA7808C 10.5 25
VI Input voltage
µA7810C 12.5 28
VVI Input voltage
µA7812C 14.5 30
V
µA7815C 17.5 30
µA7824C 27 38
IO Output current 1.5 A
TJ Operating virtual junction temperature µA7800C series 0 125 °C
electrical characteristics at specified virtual junction temperature, VI = 10 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7805C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 7 V to 20 V, 25°C 4.8 5 5.2
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 4.75 5.25
V
Input voltage regulation
VI = 7 V to 25 V
25°C
3 100
mVInput voltage regulation
VI = 8 V to 12 V
25°C
1 50
mV
Ripple rejection VI = 8 V to 18 V, f = 120 Hz 0°C to 125°C 62 78 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
15 100
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
5 50
mV
Output resistance f = 1 kHz 0°C to 125°C 0.017 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 40 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.2 8 mA
Bias current change
VI = 7 V to 25 V
0°C t 125°C
1.3
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 750 mA
Peak output current 25°C 2.2 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
4. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = 14 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7808C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 10.5 V to 23 V, 25°C 7.7 8 8.3
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 7.6 8.4
V
Input voltage regulation
VI = 10.5 V to 25 V
25°C
6 160
mVInput voltage regulation
VI = 11 V to 17 V
25°C
2 80
mV
Ripple rejection VI = 11.5 V to 21.5 V, f = 120 Hz 0°C to 125°C 55 72 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
12 160
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
4 80
mV
Output resistance f = 1 kHz 0°C to 125°C 0.016 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 52 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA
Bias current change
VI = 10.5 V to 25 V
0°C to 125°C
1
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 450 mA
Peak output current 25°C 2.2 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
electrical characteristics at specified virtual junction temperature, VI = 17 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7810C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 12.5 V to 25 V, 25°C 9.6 10 10.4
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 9.5 10 10.5
V
Input voltage regulation
VI = 12.5 V to 28 V
25°C
7 200
mVInput voltage regulation
VI = 14 V to 20 V
25°C
2 100
mV
Ripple rejection VI = 13 V to 23 V, f = 120 Hz 0°C to 125°C 55 71 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
12 200
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
4 100
mV
Output resistance f = 1 kHz 0°C to 125°C 0.018 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 70 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA
Bias current change
VI = 12.5 V to 28 V
0°C to 125°C
1
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 400 mA
Peak output current 25°C 2.2 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
5. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = 19 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7812C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 14.5 V to 27 V, 25°C 11.5 12 12.5
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 11.4 12.6
V
Input voltage regulation
VI = 14.5 V to 30 V
25°C
10 240
mVInput voltage regulation
VI = 16 V to 22 V
25°C
3 120
mV
Ripple rejection VI = 15 V to 25 V, f = 120 Hz 0°C to 125°C 55 71 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
12 240
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
4 120
mV
Output resistance f = 1 kHz 0°C to 125°C 0.018 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 75 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA
Bias current change
VI = 14.5 V to 30 V
0°C t 125°C
1
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 350 mA
Peak output current 25°C 2.2 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
electrical characteristics at specified virtual junction temperature, VI = 23 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7815C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 17.5 V to 30 V, 25°C 14.4 15 15.6
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 14.25 15.75
V
Input voltage regulation
VI = 17.5 V to 30 V
25°C
11 300
mVInput voltage regulation
VI = 20 V to 26 V
25°C
3 150
mV
Ripple rejection VI = 18.5 V to 28.5 V, f = 120 Hz 0°C to 125°C 54 70 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
12 300
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
4 150
mV
Output resistance f = 1 kHz 0°C to 125°C 0.019 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 90 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.4 8 mA
Bias current change
VI = 17.5 V to 30 V
0°C to 125°C
1
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 230 mA
Peak output current 25°C 2.1 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
6. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = 33 V, IO = 500 mA (unless
otherwise noted)
PARAMETER TEST CONDITIONS T †
µA7824C
UNITPARAMETER TEST CONDITIONS TJ†
MIN TYP MAX
UNIT
Output voltage
IO = 5 mA to 1 A, VI = 27 V to 38 V, 25°C 23 24 25
VOutput voltage O ,
PD ≤ 15 W
I ,
0°C to 125°C 22.8 25.2
V
Input voltage regulation
VI = 27 V to 38 V
25°C
18 480
mVInput voltage regulation
VI = 30 V to 36 V
25°C
6 240
mV
Ripple rejection VI = 28 V to 38 V, f = 120 Hz 0°C to 125°C 50 66 dB
Output voltage regulation
IO = 5 mA to 1.5 A
25°C
12 480
mVOutput voltage regulation
IO = 250 mA to 750 mA
25°C
4 240
mV
Output resistance f = 1 kHz 0°C to 125°C 0.028 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.5 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 170 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.6 8 mA
Bias current change
VI = 27 V to 38 V
0°C to 125°C
1
mABias current change
IO = 5 mA to 1 A
0°C to 125°C
0.5
mA
Short-circuit output current 25°C 150 mA
Peak output current 25°C 2.1 A
† Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.
7. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
7POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
+VO+V
0.1 µF0.33 µF
µA78xx
Figure 1. Fixed-Output Regulator
OUTIN
G
–VO
COM
+
–
VI IL
µA78xx
Figure 2. Positive Regulator in Negative Configuration (VI Must Float)
R1
0.33 µF
Input OutputµA78xx
0.1 µF
IO
R2
VO +Vxx )ǒVxx
R1
)IQ
ǓR2
NOTE A: The following formula is used when Vxx is the nominal output voltage (output to common) of the fixed regulator:
Figure 3. Adjustable-Output Regulator
VO(Reg)
R1
Input
IO
IO = (VO/R1) + IO Bias Current
0.33 µF
µA78xx
Output
Figure 4. Current Regulator
8. µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J – MAY 1976 – REVISED MAY 2003
8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
µA7815C
0.1 µF 1N4001
0.1 µF
1N4001
0.33 µF
2 µF
1N4001
1N4001
VO = 15 V
VO = –15 V
20-V Input
–20-V Input µA7915C
1 µF
Figure 5. Regulated Dual Supply
operation with a load common to a voltage of opposite polarity
In many cases, a regulator powers a load that is not connected to ground but, instead, is connected to a voltage
source of opposite polarity (e.g., operational amplifiers, level-shifting circuits, etc.). In these cases, a clamp
diode should be connected to the regulator output as shown in Figure 6. This protects the regulator from output
polarity reversals during startup and short-circuit operation.
µA78xx +VO+VI
–VO
1N4001
or
Equivalent
Figure 6. Output Polarity-Reversal-Protection Circuit
reverse-bias protection
Occasionally, the input voltage to the regulator can collapse faster than the output voltage. This can occur, for
example, when the input supply is crowbarred during an output overvoltage condition. If the output voltage is
greater than approximately 7 V, the emitter-base junction of the series-pass element (internal or external) could
break down and be damaged. To prevent this, a diode shunt can be used as shown in Figure 7.
µA78xx +VOVI
Figure 7. Reverse-Bias-Protection Circuit
9. MECHANICAL DATA
MPFM001E – OCTOBER 1994 – REVISED JANUARY 2001
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
KTE (R-PSFM-G3) PowerFLEX™ PLASTIC FLANGE-MOUNT
0.360 (9,14)
0.350 (8,89)
0.080 (2,03)
0.070 (1,78)
0.010 (0,25) NOM
0.040 (1,02)
Seating Plane
0.050 (1,27)
0.001 (0,03)
0.005 (0,13)
0.010 (0,25)
NOM
Gage Plane
0.010 (0,25)
0.031 (0,79)
0.041 (1,04)
4073375/F 12/00
NOM
31
0.350 (8,89)
0.220 (5,59)
0.360 (9,14)
0.295 (7,49)
NOM
0.320 (8,13)
0.310 (7,87)
0.025 (0,63)
0.031 (0,79)
Thermal Tab
(See Note C)
0.004 (0,10)
M0.010 (0,25)0.100 (2,54)
3°–6°
0.410 (10,41)
0.420 (10,67)
0.200 (5,08)
0.365 (9,27)
0.375 (9,52)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. The center lead is in electrical contact with the thermal tab.
D. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
E. Falls within JEDEC MO-169
PowerFLEX is a trademark of Texas Instruments.
10.
11.
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