Find out more about Infineon on our Homepage: www.infineon.com
The BCR401U is a cost efficient LED driver from Infineon to drive low power LEDs. You want to know more about advantages, applications details and features of BCR401U? This publication aims to provide an overview of the LED Driver "BCR401U".
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Driver "BCR402U" from Infineon Technologies: Features, Applications and General Description.
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Drivers "BCR420U / BCR421U" from Infineon Technologies: Features, Applications and General Description.
Find out more about Infineon on our Homepage: www.infineon.com
The BCR401W is a cost efficient LED driver to drive low power LEDs.You want to know more about advantages, applications details and features of "BCR401W"? This publication aims to provide an overview of the LED Driver "BCR401W".
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Driver "BCR402W" from Infineon Technologies: Features, Applications, und General Description.
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Driver "BCR402U" from Infineon Technologies: Features, Applications and General Description.
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Drivers "BCR420U / BCR421U" from Infineon Technologies: Features, Applications and General Description.
Find out more about Infineon on our Homepage: www.infineon.com
The BCR401W is a cost efficient LED driver to drive low power LEDs.You want to know more about advantages, applications details and features of "BCR401W"? This publication aims to provide an overview of the LED Driver "BCR401W".
Find out more about Infineon on our Homepage: www.infineon.com
Infineon offers a comprehensive portfolio of LED Drivers for general lighting applications, such as indoor and outdoor lighting, architectural lighting and channel letters. Find here all information about LED Driver "BCR402W" from Infineon Technologies: Features, Applications, und General Description.
This project is concerned with the
design of SoC for detecting and correcting the error which may occur in the memory unit due to
radiation in LEO (Lower Earth Orbit) and due to stuck-at faults in memory unit in space station.
The error free data is feed to the predestined processor using the serial communication protocol
(UART) and perform its function specified in the data input which is sent from the ground station.
Find out more about Infineon on our Homepage: www.infineon.com
Silicon Carbide (SiC) devices belong to the so-called wide band gap semiconductor group, which offers a number of attractive characteristics for high voltage power semiconductors when compared to commonly used silicon (Si). Find here more information about SIC Diode from Infineon Technologies.
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation: Market and Business Development First Quarter FY 2015; Business Focus; Segments, Products and Technology; General Company Information
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation: Market and Business Development Third Quarter FY 2014; Business Focus; Segments, Products and Technology; General Company Information
Find here current information about Infineon:
http://de.slideshare.net/infineon/infineon-company-presentation-q1-2015
Find out more about Infineon on our Homepage:
http://www.infineon.com/lighting
Find here Infineon Technologies portfolio of energy efficient LED Lighting applications for Power Management & Control Solutions.
This project is concerned with the
design of SoC for detecting and correcting the error which may occur in the memory unit due to
radiation in LEO (Lower Earth Orbit) and due to stuck-at faults in memory unit in space station.
The error free data is feed to the predestined processor using the serial communication protocol
(UART) and perform its function specified in the data input which is sent from the ground station.
Find out more about Infineon on our Homepage: www.infineon.com
Silicon Carbide (SiC) devices belong to the so-called wide band gap semiconductor group, which offers a number of attractive characteristics for high voltage power semiconductors when compared to commonly used silicon (Si). Find here more information about SIC Diode from Infineon Technologies.
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation: Market and Business Development First Quarter FY 2015; Business Focus; Segments, Products and Technology; General Company Information
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation: Market and Business Development Third Quarter FY 2014; Business Focus; Segments, Products and Technology; General Company Information
Find here current information about Infineon:
http://de.slideshare.net/infineon/infineon-company-presentation-q1-2015
Find out more about Infineon on our Homepage:
http://www.infineon.com/lighting
Find here Infineon Technologies portfolio of energy efficient LED Lighting applications for Power Management & Control Solutions.
Weitere Informationen zu Infineon finden Sie auf unserer Homepage: www.infineon.com
Erfahren Sie mehr über Infineon in der Unternehmenspräsentation des 1. Quartals 2015: Markt- und Geschäftsentwicklung, Geschäftsziele, Segmente, Produkte und Technologien, Generelle Unternehmensinformationen.
Find out more about Infineon on our Homepage: www.infineon.com
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Find here current information about Infineon:
http://de.slideshare.net/infineon/infineon-company-presentation-q1-2015
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Weitere Informationen zu Infineon finden Sie auf unserer Homepage: www.infineon.com
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Find here all information about PNP Silicon AF Transistor from Infineon Technologies. With this brochure we offer an overview of our product range, electrical characteristics & more!
NFC is a short range wireless RFID technology.
It is meant for applications where a physical touch –
or close to it – is required. This action ensures the
presence of a person and the intent to do something.
This technology is particularly interesting for payment, access and transport markets.
Find out more about Infineon on our Homepage: http://www.infineon.com.
Fourth Quarter FY 2015
Quarterly Update
Professional presentation about the fourth quarter FY 2015 of Infineon.
The two major pillars of Infineon's businesses: Automotive and Power
Infineon ist growing faster than the market in automotive and is clear leader in power.
Infineon is system leader in automotive; making cars clean, safe and smart.
Infineon is the market leader in Radar, 10 millions chips shipped already.
Find out more about Infineon on our homepage: www.infineon.com
The rewards and risks of Industrial Control Systems and its solultion: Hardware and Software Security. Read more about our key features and benefits.
Find out more about Infineon on our Homepage: www.infineon.com.
Vehicles are increasingly interconnected with the environment, other vehicles, but also with the traffic infrastructures and to the internet. For the driver, this has many advantages, but at the same time growing data streams mean a higher risk of manipulation. Therefore the vehicle needs safety and security systems.
Find out more about Infineon on our Homepage: www.infineon.com.
Find here Infineons presentation at the Embedded World 2015 exhibition & conference. All information about advanced and low-complexity authentification.
Find out more about Infineon on our Homepage: www.infineon.com
#DLD15 - Find here Infineon's presentation "How to make more out of less" at this year's DLD conference.
Semiconductors are the most important source of higher productivity. They will increasingly drive productivity and improve quality of life.
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation of the business year 2014: Market and Business Development; Business Focus; Segments, Products and Technology; General Company Information
Find here current information about Infineon:
http://de.slideshare.net/infineon/infineon-company-presentation-q1-2015
Weitere Informationen zu Infineon finden Sie auf unserer Homepage: www.infineon.com
Erfahren Sie mehr über Infineon in der Unternehmenspräsentation des Geschäftsjahres 2014: Markt- und Geschäftsentwicklung, Geschäftsziele, Segmente, Produkte und Technologien, Generelle Unternehmensinformationen.
Aktuelle Informationen über das Unternehmen Infineon finden Sie hier:
http://de.slideshare.net/infineon/infineon-unternehmenspraesentation-q1-2015
Find out more about Infineon on our Homepage: www.infineon.com
Find here Infineon's company presentation: Market and Business Development First Quarter FY 2014; Business Focus; Segments, Products and Technology; General Company Information
Find here current information about Infineon:
http://de.slideshare.net/infineon/infineon-company-presentation-q1-2015
Find out more about Infineon on our Homepage: www.infineon.com
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Power semiconductors play a key role to produce energy from renewable sources.
In wind turbines, power semiconductors are used to convert power and to couple
the generator with the grid. Find out here more about Solutions for Wind Energy Sysytems powered by Infineon.
Find out more about Infineon on our Homepage: www.infineon.com/xmc
Find here all information about XMC4000 - Advanced Microcontrollers for Industrial Solutions - 32-bit Microcontroller Family based on ARM® Cortex(tm)-M4 from Infineon Technologies.
Find out more about Infineon on our Homepage: www.infineon.com
Find here all information about NPN Silicon AF Transistors from Infineon Technologies. With this brochure, we offer an overview of our product range, electrical characteristics & more!
Find out more about Infineon on our Homepage: www.infineon.com
GPS Applications - find here all information about compact and high performance Front-End Module. This presantation will give you a simple overview of the RF System and Protection Devices. Infineon - your partner for semiconductor solutions & automotive applications.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
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After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
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GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
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3. BCR401U
Datasheet 3 Revision 2.0, 2012-04-12
Trademarks of Infineon Technologies AG
AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™,
CORECONTROL™, CROSSAVE™, DAVE™, DI-POL™, EasyPIM™, EconoBRIDGE™, EconoDUAL™,
EconoPIM™, EconoPACK™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™,
ISOFACE™, IsoPACK™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OptiMOS™, ORIGA™,
POWERCODE™; PRIMARION™, PrimePACK™, PrimeSTACK™, PRO-SIL™, PROFET™, RASIC™,
ReverSave™, SatRIC™, SIEGET™, SINDRION™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, TEMPFET™,
thinQ!™, TRENCHSTOP™, TriCore™.
Other Trademarks
Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™,
PRIMECELL™, REALVIEW™, THUMB™, µVision™ of ARM Limited, UK. AUTOSAR™ is licensed by AUTOSAR
development partnership. Bluetooth™ of Bluetooth SIG Inc. CAT-iq™ of DECT Forum. COLOSSUS™,
FirstGPS™ of Trimble Navigation Ltd. EMV™ of EMVCo, LLC (Visa Holdings Inc.). EPCOS™ of Epcos AG.
FLEXGO™ of Microsoft Corporation. FlexRay™ is licensed by FlexRay Consortium. HYPERTERMINAL™ of
Hilgraeve Incorporated. IEC™ of Commission Electrotechnique Internationale. IrDA™ of Infrared Data
Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MATLAB™ of
MathWorks, Inc. MAXIM™ of Maxim Integrated Products, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics
Corporation. MIPI™ of MIPI Alliance, Inc. MIPS™ of MIPS Technologies, Inc., USA. muRata™ of MURATA
MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., OmniVision™ of
OmniVision Technologies, Inc. Openwave™ Openwave Systems Inc. RED HAT™ Red Hat, Inc. RFMD™ RF
Micro Devices, Inc. SIRIUS™ of Sirius Satellite Radio Inc. SOLARIS™ of Sun Microsystems, Inc. SPANSION™
of Spansion LLC Ltd. Symbian™ of Symbian Software Limited. TAIYO YUDEN™ of Taiyo Yuden Co.
TEAKLITE™ of CEVA, Inc. TEKTRONIX™ of Tektronix Inc. TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™
of X/Open Company Limited. VERILOG™, PALLADIUM™ of Cadence Design Systems, Inc. VLYNQ™ of Texas
Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes
Zetex Limited.
Last Trademarks Update 2011-11-11
Revision History
Page or Item Subjects (major changes since previous revision)
Revision 2.0, 2012-04-12
All Datasheet layout updated
Table 2-1 Vout limit increased
Table 2-3 Rint limits tightened
6. BCR401U
List of Tables
Datasheet 6 Revision 2.0, 2012-04-12
Table 2-1 Maximum Ratings at TA = 25 °C, unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2-2 Thermal Resistance at TA = 25 °C, unless otherwise specified. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2-3 Electrical Characteristics at TA = 25 °C, unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2-4 DC Characteristics with stabilized LED load at TA = 25 °C, unless otherwise specified . . . . . . . . . 9
List of Tables
7. BCR401U
LED Driver
Datasheet 7 Revision 2.0, 2012-04-12
1 LED Driver
1.1 Features
1.2 Applications
• Channel letters for advertising, LED strips for decorative lighting
• Aircraft, train, ship illumination
• Retrofits for general lighting, white goods like refrigerator lighting
• Medical lighting
• Automotive applications like CHMSL and rear combination lights
1.3 General Description
The BCR401U is a cost efficient LED driver to drive low power LEDs. The advantages towards resistor biasing are:
• homogenous light output despite varying forward voltages in different LED strings
• homogenous light output of LEDs despite voltage drop across long supply lines
• homogenous light output independent from supply voltage variations
• longer lifetime of the LEDs due to reduced output current at higher temperatures (negative thermal coefficient)
The advantages towards discrete solutions are:
• lower assembly cost
• smaller form factor
• higher reliability due to less soldering joints
• higher output current accuracy due to pretested LED drivers
Dimming is possible by using an external digital transistor at the ground pin.
The BCR401U can be operated at higher supply voltages by putting LEDs between the supply voltage VS and the
power supply pin of the LED driver. You can find further details in our application notes.
The BCR401U is a perfect fit for numerous low power LED applications by combining small form factor with low
cost. These LED drivers offer several advantages to resistors like significantly higher current control at very low
voltage drop ensuring high lifetime of the LEDs.
• LED drive current preset to 10 mA
• Output current adjustable up to 65 mA with an external resistor
• Easy paralleling of drivers to increase current
• Supply voltage up to 40 V
• High current accuracy at supply voltage variation
• Low voltage overhead of 1.4 V
• Up to 750 mW power dissipation in a small SC74 package
• Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures
• RoHS compliant (Pb-free) package
• Automotive qualified according AEC Q101
SC74-3D
8. BCR401U
LED Driver
Datasheet 8 Revision 2.0, 2012-04-12
Figure 1-1 Pin configuration and typical application
Type Marking Pin Configuration Package
BCR401U L1s 1 = GND 2; 3; 5 = OUT 4 = VS 6 = Rext SC74
Pin Configuration Typical Application
GND
OUT
OUT VS
OUT
Rext1
2
3 4
5
6
GND OUT
+VS
Vdrop
2,3,51
IoutIS
Rext
VS
6
4
Rext
(optional )
9. BCR401U
Electrical Characteristics
Datasheet 9 Revision 2.0, 2012-04-12
2 Electrical Characteristics
Attention: Stresses above the max. values listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect device
reliability. Maximum ratings are absolute ratings; exceeding only one of these values may
cause irreversible damage to the integrated circuit.
Table 2-1 Maximum Ratings at TA = 25 °C, unless otherwise specified
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Supply voltage VS - - 40 V
Output current Iout - - 65 mA
Output voltage Vout - - 40 V
Reverse voltage between all terminals VR - - 0.5 V
Total power dissipation Ptot - - 750 mW TS ≤ 112.5 °C
Junction temperature TJ - - 150 °C
Storage temperature range TSTG -65 - 150 °C
Table 2-2 Thermal Resistance at TA = 25 °C, unless otherwise specified
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Junction - soldering point1)
1) For calculation of RthJA please refer to Application Note AN077 (Thermal Resistance Calculation)
RthJS - - 50 K/W
Table 2-3 Electrical Characteristics at TA = 25 °C, unless otherwise specified
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Collector-emitter breakdown voltage VBR(CEO) 40 - - V IC = 1 mA, IB = 0
Supply current IS 340 420 500 µA VS = 10 V
DC current gain hFE 100 220 470 - IC = 50 mA, VCE = 1 V
Internal resistor Rint 78 91 104 Ω IRint = 10 mA
Output current Iout 9 10 11 mA VS = 10 V
Vout = 8.6 V
Voltage drop (VRext) Vdrop 0.82 0.91 1 V Iout = 10 mA
Table 2-4 DC Characteristics with stabilized LED load at TA = 25 °C, unless otherwise specified
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Lowest sufficient supply voltage overhead VSmin - 1.4 - V Iout > 18 mA
Output current change versusTA ∆Iout/Iout - -0.2 - %/K VS = 10 V
Output current change versus VS ∆Iout/Iout - 1 - %/V VS = 10 V
10. BCR401U
Typical characteristics
Datasheet 10 Revision 2.0, 2012-04-12
3 Typical characteristics
Figure 3-1 Total Power Dissipation Ptot = f(TS)
Figure 3-2 Permissible Pulse Load RthJS = f(tp)
0
200
400
600
800
1000
0 20 40 60 80 100 120 140
Ptot[mW]
TS [°C]
0.1
1
10
100
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
RthJS[K/W]
tp [s]
D = 0
D = 0.005
D = 0.01
D = 0.02
D = 0.05
D = 0.1
D = 0.2
D = 0.5
11. BCR401U
Typical characteristics
Datasheet 11 Revision 2.0, 2012-04-12
Figure 3-3 Permissible Pulse Load Ptotmax / PtotDC= f(tp)
1
10
100
1000
10-6
10-5
10-4
10-3
10-2
10-1
100
Ptotmax/PtotDC
tp [s]
D = 0
D = 0.005
D = 0.01
D = 0.02
D = 0.05
D = 0.1
D = 0.2
D = 0.5
12. BCR401U
Typical characteristics
Datasheet 12 Revision 2.0, 2012-04-12
Figure 3-4 Output Current versus VS Iout = f(VS), VS - Vout = 1.4 V, Rext = Parameter
Figure 3-5 Supply Current versus VS IS = f(VS), TA = Parameter
1
10
100
0 5 10 15 20 25 30 35 40
IOUT[mA]
VS [V]
REXT = open
REXT = 100 Ω
REXT = 47 Ω
REXT = 33 Ω
REXT = 22 Ω
REXT = 18 Ω
REXT = 15 Ω
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 5 10 15 20 25 30 35 40
IS[mA]
VS [V]
80 °C
20 °C
-40 °C
13. BCR401U
Typical characteristics
Datasheet 13 Revision 2.0, 2012-04-12
Figure 3-6 Output Current versus VS Iout = f(VS), VS - Vout = Parameter
Figure 3-7 Output Current versus VS Iout = f(VS), VS - Vout = 1.4 V, TA = Parameter
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
0 5 10 15 20 25 30 35 40
Iout[mA]
VS [V]
1 V
1.4 - 2 V
1
10
100
0 5 10 15 20 25 30 35 40
Iout[mA]
VS [V]
-40 °C
25 °C
85 °C
150 °C
14. BCR401U
Typical characteristics
Datasheet 14 Revision 2.0, 2012-04-12
Figure 3-8 Output Current versus Rext Iout = f(Rext), VS = 10 V, VS - Vout = 1.4 V, TA = Parameter
Figure 3-9 Output Current versus TS Iout = f(TS), VS = 10 V, VS - Vout = 1.4 V, Rext = Parameter
10
100
10 100
Iout[mA]
Rext [Ω]
-40 °C
25 °C
85 °C
150 °C
0
10
20
30
40
50
60
70
-50 -25 0 25 50 75 100 125 150
Iout[mA]
TS [°C]
Rext = open
Rext = 100Ω
Rext = 47 Ω
Rext = 33 Ω
Rext = 22 Ω
Rext = 18 Ω
Rext = 15 Ω
15. BCR401U
Typical characteristics
Datasheet 15 Revision 2.0, 2012-04-12
Figure 3-10 Reference Voltage Vdrop versus Iout Vdrop = f(Iout), Iout = 10 µA to 10 mA
Figure 3-11 Reference Voltage Vdrop versus Iout Vdrop = f(Iout), Iout = 10 mA to 65 mA
0.8
0.85
0.9
0.95
1
1.05
1.1
10-5
10-4
10-3
10-2
Vdrop[V]
IOUT [A]
typ.
min., max.
0.6
0.65
0.7
0.75
0.8
0.85
0.9
0.95
1
10 20 30 40 50 60 70
Vdrop[V]
IOUT [mA]
typ.
min., max.
16. BCR401U
Application hints
Datasheet 16 Revision 2.0, 2012-04-12
4 Application hints
Figure 4-1 Application Circuit: Stand alone current source
Figure 4-2 Application Circuit: Boost mode current source with external power transistor
Application hints
BCR401U serves as an easy to use constant current source for LEDs. In stand alone application an external
resistor Rext can be connected to adjust the current between 10 mA and 65 mA. Rext can be determined by using
Figure 3-8. Connecting a low tolerance resistor Rext will improve the overall accuracy of the current sense
resistance formed by the parallel connection of Rint and Rext leading to an improved current accuracy. Please take
into account that the resulting output currents will be slightly lower due to the self heating of the component and
the negative thermal coefficient.
In boost mode configuration the LED current can be extended to drive high power LEDs. Please visit our web site
www.infineon.com/lowcostleddriver for detailed application notes.
GND OUT
+VS
Vdrop
2,3,51
IoutIS
Rext
VS
6
4
Rext
(optional )
GND OUT
+VS
Vdrop
2,3,51
Iout
IS
Rext
VS
6
4
ILED
R1
R2
Rext
(optional )
17. BCR401U
Package
Datasheet 17 Revision 2.0, 2012-04-12
5 Package
Figure 5-1 Package Outline for SC74 (dimensions in mm)
Figure 5-2 Package Footprint for SC74 (dimensions in mm)
Figure 5-3 Tape and Reel Information for SC74 (dimensions in mm)
SC74-PO V04
5 46
321
1.1 MAX.
(0.35)
(2.25)
±0.22.9
B
0.2
+0.1
-0.050.35
Pin 1
marking
M B 6x
0.95
1.9
0.15-0.06
+0.1
1.6
A
±0.1
2.5
0.25
±0.1
±0.1
A0.2 M
0.1 MAX.
0.5
0.95
1.9
2.9
SC74-FPR V04
SC74-TP
2.7
4
3.15Pin 1
marking
8
0.2
1.15
18. BCR401U
Terminology
Datasheet 18 Revision 2.0, 2012-04-12
Terminology
∆Iout/Iout Output current change
hFE DC current gain
IEN Enable current
ILED LED current
Iout Output current
IR Reverse current
LED Light Emitting Diode
PCB Printed Circuit Board
Ptot Total power dissipation
PWM Pulse Width Modulation
RB Bias resistor
Rext External resistor
Rint Internal resistor
RoHs Restriction of Hazardous Substance directive
RthJS Thermal resistance junction to soldering point
TA Ambient temperature
TJ Junction temperature
TS Soldering point temperature
Tstg Storage temperature
VBR(CEO) Collector-emitter breakdown voltage
VBR Breakdown voltage
Vdrop Voltage drop
Vout Output voltage
VR Reverse voltage
VS Supply voltage
VSmin Lowest sufficient supply voltage overhead