1. ST Off-Line Power Supply
Electronicos OnLine
July 27, 2011

2. Agenda
 Offline Common configurations
 New VIPer+ Family
 Roadmap
 Products
 New products
 Altair & HVLED
 Design Tool
 e-Design Sutdio
2

3. SMPS Fundamentals
3

4. Buck Topology
S1
L1
V2
V1
+
+
IL
S2
4

5. Buck Topology Applied
IIN
L
VS
IIND
Cout
IGND
5

6. Buck Example
6

7. Flyback Topology
7

8. Flyback Topology Applied
IP IS
VIN
+ +
VP VS
VD
Note: NP = # of primary turns
NS = # of secondary turns
8

9. Auxiliary Supply
VOUT = < 40V
VIN = 160V
VAUX = 12V
9

10. Why Auxiliary Supply (1/2)
 The PWM control loop uses 10V/5mA for power.
 If the power supply is the input bus (rectified line
voltage) and VDD is ~10V then the PWM loop
will draw (160V-10V)*5mA=7.5W
 The secondary output can’t be used because
galvanic isolation is required
 Auxiliary supply allows low power consumption
and galvanic isolation.
 Cost is low.
10

11. Why Auxiliary Supply (1/2)
 Transformer action will also apply between the
secondary voltage and the auxiliary voltage.
 Fault tolerence when reference/opto fails: No
overvoltage seen at output.
 Short circuit behavior: with aux winding the max
output power is limited, no need to oversize
secondary side components.
11

12. Flyback Example
12

13. Buck Vs Flyback
Buck Flyback
 Low cost  High cost
 Less components  Custom transformer
 Designed based on O/p  Designed based on O/p
current. power
 Differential EMI critical  Common mode EMI
 Outputs must be critical
inaccessible to users.  Users can touch output
 Single output only. connectors or output
power stages.
 Multiple outputs possible.
13

14. Viper Family
14

15. Solutions for low-medium power SMPS
 The best energy saving approach
 Minimized stand-by power
 High efficiency
 The most reliable approach
 Avalanche rugged power section
 Integration of advanced protections
 Thermal shutdown sensor located on power section
 The most flexible approach
 Modular product: controller + power section
 Packages’ design and development
 The most profitable partner
 Continuous products’ innovation
 Technical support (competence centers, documentations, software)
 Excellence in quality and supply chain
15

16. Solutions for low-medium power SMPS
Primary Controllers Secondary Controllers
HV Converters
Sync. CC/CV
Rectification
REGULATE
Controller + MOSFET RECTIFY Efficiently Constant Voltage &
Current
AC VIPer Plus.
(optional)
DC
Replacement of the (Adapters,
diode Chargers,..)
DELIVER the
power to
Transformer’s
Primary
16

17. New VIPer Plus family
GND / SOURCE DRAIN + Technology
VDD DRAIN
+ Functionalities
VIPer+ + Protections
CONT / Lim
FB Function = VIPer+
17

18. + Technology
NEW
800V Power MOSFET
GND / SOURCE DRAIN
DRAIN
VDD Out
Out
VDD DRAIN On-Off On/Off
VIPER17 BR
Gate Gate
CONT CONTROL
CONT Sense Sense
FB Tmp1 Tmp1
Gnd
FB
Gnd1 Gnd
BR
SOURCE
NEW
BCD6 controller technology
18

19. + Functionalities
 Current mode converter with ADJUSTABLE IDLIM set point
 Frequency
 Fixed (60kHz or 115kHz) with JITTERING for EMI reduction
 Quasi Resonant operation with Frequency Fold-back function (x5)
 SOFT START UP: IDLIM increased cycle by cycle
 BURST MODE in low load condition with IDLIM fixed
 ADJUSTABLE IDLIM set point
 STAND BY consumption < 50 mW
19

20. + Protections
 Over voltage protection (OVP)
AUTO RESTART
 2nd over current protection (2nd OCP) MODE
after every fault
 Over load protection (OLP) condition
 Over temperature protection + hysteresis (OTP)
 Brown out protection
 Max Duty Cycle: 70%
20

21. HV Converter Portfolio
+ Roadmap
30 W 18 W 5.5 W 3W 1W
730V
620V
1 W (3)
VIPer22
VIPer12 VIPer50 VIPer100 VIPer53
VIPer20
30 W 24 W 7W 4.5 W 3W 1W
800 V
Av.Rug.
30 mW(3) CTRL
VIPer17 VIPer27 VIPer37 VIPer x7
30 mW(3) CTRL
VIPer15 VIPer25 VIPer x5
30 mW(3)
CTRL
VIPer28 VIPer x8
30 mW(3)
CTRL
VIPer06 VIPer16 VIPer26 VIPer x6
4W(1) / 8W(2) 6W(1) / 12W(2) 12W(1) / 24W(2) 15W(1) / 30W(2) 20W(1) / 35W(2) 30W(1) / 50W(2)
SSO10 & DIP7 SO16N & DIP7 SO16N & DIP7 SDIP10
(1) Open frame, VIN = 85 - 264VAC , under development, SOP planned within 2011
(2) Open frame, VIN = 230VAC ±20%,
(3) Achievable consumption at no load with Vin 264VAC
21

22. Main features
Basic features VIPer x7 VIPer x8 VIPer x5 VIPer x6
PWM operations Fixed Frequency (60 or 115kHz) with Fixed Frequency
Quasi Resonant (301 or 60 or 115kHz)
with settable IDLIM Jittering
with Jittering
800V Extra Power Simplified
Avalanche Rugged Brown out Brown out Non Isolated
Timer
loop
Burst Mode Over Voltage No auxiliary
Over
Temperature Over Load Delay Feedback
shut down disconnection
Soft start 2° OCP Auto restart
(fixed time)
Latched a
Auto restart Feedback
disconnection
(option only for VIPer06)
Latched OVP
(option for VIPer25LLD)
(1) 30kHz available only for VIPer06
22

23. SMPS topology and main applications
High features - Isolated Fly-back
VIPer17 VIPer27 VIPer37 Auxiliary PS, STB, DVD, Games console, LCD TV,
major appliances, Motor control, Power Meter,
Chargers, Adapters, PC Stand-by
Quasi Resonant - Isolated Fly-back
VIPer15 VIPer25 VIPer35 Auxiliary PS, STB, DVD, Games console, LCD TV,
major appliances, Motor control, Power Meter,
Chargers, Adapters, PC Stand-by
VIPer28 VIPer38 Peak Power Isolated Fly-back
DVD, Printer, ATX
Non Isolated converters
VIPer06 VIPer16 VIPer26 Home appliances, Small appliances, Lighting, Power
meter
DIP7 DIP7 DIP7 Basic features – Isolated Fly-back
SDIP10 Auxiliary PS, STB, DVD, Games console, LCD TV,
SSO10 SO16N SO16N
major appliances, Motor control, Power Meter,
Chargers, Adapters, PC Stand-by
1W……. …….15W(1) / 30W(2)
23

24. VIPer17 & 27
Main Features Pin description
 800V, avalanche rugged power MOSFET
 PWM controller with drain current limit, IDlim.
 Adjustable current limit, IDlim
 Fixed Frequency with Jittering
 High performance for stand-by & efficiency
 Integrated protections: OVP, OLP, high OCP
 Automatic auto restart after fault
 Hysteretic thermal shutdown
 Brown-out: minimum input voltage is settable
MAIN PARAMETERS
Power MOSFET CONTROLLER  GND
Main parameters
(SuperMESH) (BCD6S) controller ground / power MOSFET Source
Break down voltage [V] 800  VDD
controller supply voltage / ICHARGE output current
RDSon [Ohm] 24 / 7  COMP
OVP set-up, IDLIM set-up.
VDD [V] 9 ÷ 23
 FB
FOSC [KHz] 60 or 115 current loop feedback
 BR
Max IDlim [mA] 420 / 740
brown out set-up
RTHJ-A [°C/W] (1) 80 / 50  N.A.
Not Available for user. (It can be connected to GND)
POUT [W] @ 85-265VAC 6 / 12
 N.C.
(1) Package SO16N and 100mm2 of Cu
Not Connected
(2) Open Frame
24

25. Schematics with VIPerx7
FLY-BACK / FF
VIPer17 / 27 / 37
ISOLATED
L1 30mW Stand-by
F
R2 C6
Minimum components count
AC IN C1 + C2 + D2 T1 D3
NTC VOUT
+
C5 Low cost EMI filter
GND C1,C2, L1
R6 D4 C6
VIPER x7
DRAIN
Low cost clamp components
R2,C6,D2
VDD
Controller
Default current limit
GND BR CONT FB
C4 400mA / 700mA / 1000mA
R5
R3
Short circuit protection
IC3
No need ext components
R4 C7
IC2 2nd Over Current protection
C3 R4 No need ext components
25

26. Schematics with VIPerx7
FLY-BACK / FF
VIPer17 / 27 / 37
ISOLATED
L1 30mW Stand-by
F
R2 C6
Minimum components count
AC IN C1 + C2 + D2 T1 D3
NTC VOUT
DOVP +
C5 Low cost EMI filter
GND C1,C2, L1
R6 D4 C6
VIPER x7
DRAIN
Low cost clamp components
ROVP
R2,C6,D2
R7 VDD
Controller
Current limit set-up - RLIM
GND BR CONT FB
C4 <400mA or <700mA or <1000mA
R5
R3
Short circuit protection
IC3
No need ext components
R4 C7
R8
RLIM
IC2 2nd Over Current protection
C6 C3 R4 No need ext components
Over Voltage Protection (VOUT)
RLIM , ROVP , DOVP
Brown out set-up (VINDC)
R7,R8, C6
26

27. VIPer28
Main Features Pin description
 800V, avalanche rugged power MOSFET
 PWM controller with drain current limit, IDlim.
 Adjustable current limit, IDlim
 Fixed Frequency with Jittering
 High performance for stand-by & efficiency
 Integrated protections: OVP, OLP, high OCP
 Automatic auto restart after fault
 Hysteretic thermal shutdown
 Extra Power Management
 GND
Power MOSFET CONTROLLER controller ground / power MOSFET Source
MAIN PARAMETERS
Main parameters
(SuperMESH) (BCD6S)  VDD
Break down voltage [V] 800 controller supply voltage / ICHARGE output current
 COMP
RDSon [Ohm] 7
OVP set-up, IDLIM set-up.
VDD [V] 9 ÷ 23  FB
current loop feedback
FOSC [KHz] 60 or 115
 EPT
Max IDlim [mA] 850 Extra Power Time set-up
RTHJ-A [°C/W] (1) 50  N.A.
Not Available for user. (It can be connected to GND)
POUT [W] @ 85-265VAC 12
 N.C.
(1) Package SO16N and 100mm2 of Cu
Not Connected
(2) Open Frame
27

28. Schematics with VIPerx8
FLY-BACK / FF
VIPer28
ISOLATED
L1 30mW Stand-by
F
R2 C6
Minimum components count
AC IN C1 + C2 + D2 T1 D3
NTC VOUT
+
C5 Low cost EMI filter
GND C1,C2, L1
R6 D4 C6
VIPER x8
DRAIN
Low cost clamp components
R2,C6,D2
VDD
Controller
Default current limit
GND EPT CONT FB
C4 400mA / 700mA / 1000mA
R5
R3
Short circuit protection
IC3
No need ext components
R4 C7
CEPT
IC2 2nd Over Current protection
C3 R4 No need ext components
Extra Power Timer
CEPT
28

29. VIPer16 & 26
Main Features Pin description
 800V, avalanche rugged power MOSFET
 PWM controller with drain current limit IDlim
 Adjustable current limit,IDlim
 Fixed frequency with Jittering
 high performance for stand-by & efficiency
 No need of auxiliary winding
 Automatic auto restart after faults
 Hysteretic thermal shutdown
 Direct feedback for non isolated SMPS
 Replacement of capacitive power supply
 GND
 Open loop protection
controller ground / power MOSFET Source
MAIN PARAMETERS
Power MOSFET CONTROLLER  VDD
(SuperMESH)
Main parameters (BCD6S)
controller supply voltage / ICHARGE output current
Break down voltage [V] 800  LIM
Current limit set-up, IDlim .
RDSon [Ohm] 24 / 7
 FB
VDD [V] 9 ÷ 23 direct voltage feedback (in case of non isolated
SMPS)
FOSC [KHz] 60 or 115
 COMP
Max IDlim [mA] 420 / 740 Compensation network.
RTHJ-A [°C/W] (1) 80 / 50 Current loop feedback in case of isolated SMPS
 N.A.
POUT [W] @ 85-265 VAC 6 / 12
Not Available for user. (It can be connected to GND)
(1) Package SO16N, 100mm2 of Cu
 N.C.
(2) Open Frame
Not Connected
29

30. Schematics with VIPerx6
FLY-BACK / Fixed Freq.
VIPer06 / 16 / 26
NON ISOLATED
Simplified feedback loop
R3, R4
R1 D1 L1 T1 D3 VOUT
+ No Need auxiliary winding
R2 C6 + C4
C5
C1 + C2 + D2
GND
Low cost EMI filter
C1, C2, L1
- VIPER x6
DRAIN R3
Low cost clamp components
Controller
FB R2,D2,C6
GND COMP LIM VDD
R4 Short circuit protection
C3 C4 (automatic restart)
Default current limit
400mA / 700mA
30

31. Schematics with VIPerx6
FLY-BACK / FF
VIPer06 / 16 / 26
ISOLATED
R1 D1 L1 Minimum components count
+
R2 C6
C2
Need auxiliary winding
AC IN C1 + + D2 T1 D3 C4 + AUX
VOUT
+
- C5
Low cost EMI filter
GND
C1, C2, L1
R6 D4 C6
VIPER x6
DRAIN
Low cost clamp components
FB
R2,D2,C6
Controller
GND COMP LIM VDD Short circuit protection
C4
(automatic restart)
R5
R3
IC3
Feedback disconnection
R4 C7
(automatic restart)
IC2
Default current limit
C3 R4 400mA / 700mA
Stand-by optimization , 30 mW
AUX + D4, R5
31

32. VIPer15 & 25
Main Features Pin description
 800V, avalanche rugged power MOSFET
 Quasi-Resonant PWM controller with drain current
limit, IDlim.
 Adjustable current limit, IDlim
 Feed-Forward compensation
 High performance for stand-by & efficiency
 Integrated protections: OVP, OLP, high OCP
 Automatic auto restart after fault
 Hysteretic thermal shutdown
 Brown-out: minimum input voltage is settable
 GND
MAIN PARAMETERS
Power MOSFET CONTROLLER controller ground / power MOSFET Source
(SuperMESH) (BCD6S)
Main parameters  VDD
Break down voltage [V] 800 controller supply voltage / ICHARGE output current
 ZCD
RDSon [Ohm] 24 / 7
Zero Current Detection, Feed-Forward set-up, OVP
VDD [V] 9 ÷ 23 set-up, IDlim set point.
up to 150 (L type)  FB
FOSClim [KHz]
up to 225 (H type) Current loop feedback
Max IDlim [mA] 420 / 740  BR
RTHJ-A [°C/W] (1) 80 /50
Brown out set-up
 N.A.
POUT [W] @ 85-26 VAC 6 / 12
Not Available for user. (It can be connected to GND)
(1) Package SO16N, 100mm2 of Cu
 N.C.
(2) Open Frame Not Connected
32

33. Schematics with VIPer x5
FLY-BACK / Quasi Res.
VIPer15 / 25
ISOLATED
L1 30mW Stand-by
F
R2 C6
Minimum components count
AC IN C1 + C2 +
D2 T1 D3
NTC VOUT
DOVP + Low cost EMI filter
C5
C1,C2, L1
GND
ROVP RFF
R6 D4 C6
Low cost clamp components
VIPER x5
R2,C6,D2
DRAIN
Controller
VDD Short circuit protection
No need ext components
GND BR ZCD FB
C4
2nd Over Current protection
R5
R3 No need ext components
IC3
C7
Zero current Detection (QR)
R4
RLIM , ROVP , DOVP, RFF
IC2
RLIM
C3 R4
Current limit set-up - RLIM
≤400mA or ≤700mA or ≤1000mA
Over Voltage Protection (VOUT)
RLIM , ROVP , DOVP
Feed-Forward
RFF
33

34. Evaluation Boards and ANs
VIPer 17 Order code Topology Input VAC Output Output Relevant AN Reference
Isolated
VIPER17LN STEVAL-ISA058V1 85-265 5W 5V / 1A AN2864 Stand-by PSU
Fly-back
Isolated
VIPER17HN STEVAL-ISA060V1 85-265 6W 12V / 0.5A AN2753 Stand-by PSU
Fly-back
Isolated Cell Phone
VIPER17HN EVLVIP17-5WCHG 90-265 5W 5V / 1A AN2840
Fly-back Battery Charger
Isolated
VIPER17HN STEVAL-ILL017V1 220 ±20% 3.5W 7V / 500mA AN2811 Led Driver
Fly-back
Isolated 5V / 500mA
VIPER17HN STEVAL-ISA062V1 85-265 5.5W AN2934 General Purpose
Fly-back 12V / 250mA
Isolated High Power
VIPER17HN EVLVIP27-7WLED 100-264 3.5W 10V / 350mA AN3212
Fly-back Factor Led Driver
VIPer 27 Order code Topology Input VAC Output Output Relevant AN Reference
Isolated
VIPER27LN EVLVIP27L-12WS 85-265 12W 5V / 2.4A AN2929 Auxiliary PSU
Fly-back
Isolated
VIPER27HN EVLVIP27H-12SB 85-265 11W 5V / 2.2A AN3011 Auxiliary PSU
Fly-back
Isolated High Power
VIPER27HN EVLVIP27-7WLED 100-264 7W 10V / 750mA AN3212
Fly-back Factor Led Driver
VIPer 37 Order code Topology Input VAC Output Output Relevant AN Reference
Isolated
VIPER37xx TBD 85-265 5V / 3A
Fly-back
Isolated
VIPER37xx TBD 85-265 12V / 1.3A
Fly-back
34

35. Evaluation Boards and ANs
VIPer 06 Order code Topology Input VAC Output Output Relevant AN Reference
12V / 300mA
VIPER06LS Non isolated
Under development 85-265 option TBD Home appliance
VIPER06HS Fly-back
( 5V /800mA)
Isolated
Under development 85-265 TBD TBD Home Appliance
Fly-back
VIPer 16 Order code Topology Input VAC Output Output Relevant AN Reference
Non isolated 12V / 5V (post
VIPER16LN STEVAL-ISA010V1 85-500 1.8W AN2872 Power Meter
buck converter reg.) / 150mA
Non Isolated AN3028
VIPER16LN EVLVIP16L-4WFN 85-265 4.5W 16V / 280mA Home appliance
Fly-back draft
Non Isolated - 5V / 400mA,
VIPER16LN STEVAL-ISA071V1 85-265 4W UM0920 Home appliance
Fly-back +7V / 160mA
Isolated Home appliance
VIPER16LN EVLVIP16L-5WFL 85-265 5W 12 / 350mA databrief
Fly-back Auxilairy PSU
Non Isolated 12V / 5V (post Small Home
VIPER16LD EVLVIP16LD-1W5 85-265 1.8W databrief
buck converter reg.) / 150mA Appliance
Non Isolated
VIPER16HN EVLVIP16H-4WFN 85-265 4.5W 16V / 280mA databrief Home appliance
Fly-back
VIPer 26 Order code Topology Input VAC Output Output Relevant AN Reference
Primary
VIPER26LD STEVAL-ISA081V1 Regulation 85-265 12.5W 12V, 3.3V / 1A UM0984 Home appliance
Fly-back
35

36. Evaluation Boards and ANs
VIPer 15 Order code Topology Input VAC Output Output Relevant AN Reference
Quasi-
Resonant AN3160
VIPER15LN STEVALVIP15L-6W 90-265 VAC 6W 12V, 500mA Auxiliary PSU
Isolated draft
Fly-back
Quasi-
Resonant
VIPER15LN EVLVIP15L-5WSB 90-265 VAC 5W 5V, 1A TBD Auxiliary PSU
Isolated
Fly-back
VIPer 25 Order code Topology Input VAC Output Output Relevant AN Reference
Quasi-
Auxiliary PSU
Resonant AN3286
VIPER25LN EVLVIP25L-10WSB 85-265 VAC 10W 5V, 2A STB
Isolated draft
Power Meter
Fly-back
VIPer 28 Order code Topology Input VAC Output Output Relevant AN Reference
Isolated Auxiliary PSU
VIPER28LN EVLVIPER28L-10W 85-265 VAC 12W 5V, 2.4A AN2950
Fly-back Printer
36

37. Evaluation Boards
Viper16, Buck
Viper17, Flyback
37

38. ALTAIR & HVLED
Optoless Current & Voltage Controllers
38

39. Device objective – Standard configuration
 Accurate CC-CV regulation
 Need dedicated CV-CC regulator
 Need secondary components and opto
 Power dissipation on sense resistor
 Expensive solution
39

40. ST - Proposed configuration
 Control of output voltage and current entirely from
primary side
 Save all secondary regulation components (voltage
reference, error amplifiers), optocoupler, sense resistor)
40

41. Technology
800V Avalanche Ruggedness Power MOSFET
in SuperMESH Technology
DRAIN
VCC Out
Out
GND On-Off On/Off
IREF
Gate Gate
ZCD/FB CONTROL
Sense Sense
COMP
CDC
TRIM
DATA
CLOCK
Gnd1
SOURCE
BCD6 controller technology
With OTP (one time programmable) trimming
function available for the end user
41

42. Main electrical parameters – HVLED805
Main Features Pin description
 800V, avalanche rugged power section
 QR current-mode PWM controller in BCD6
technology SO16
 Constant voltage and constant current output
regulation (CV/CC) with no optocoupler
 Optimized for LED
 High performance for stand-by & efficiency
 Integrated protections: 2nd OCP, open loop
protection (brownout) OLP, high OCP  SOURCE
 Automatic auto restart after fault Power section Source
 Vcc
Power MOSFET CONTROLLER
MAIN PARAMETERS controller supply voltage / ICHARGE output current
(SuperMESH) (BCD6S)
Main parameters  GND
Break down voltage [V] 800
controller ground
RDSon [Ohm] 11  ILED
Current loop reference
VDD [V] 11.5 ÷ 23  DMG
Zero Current Detection
FOSC [KHz] Up to 166 kHz
 COMP
Restart time during burst mode( 500us Compensation network
RTHJ-A [°C/W] (1) 80
 DRAIN
Power section Drain
POUT [W] @ 85-265VAC 6
(1) Package SO16N and 100mm2 of Cu

43. Main electrical parameters – ALTAIR05T-800
Main Features Pin description
 800V, avalanche rugged power section SOURCE 1 16 DRAIN
 QR current-mode PWM controller in BCD6 SOURCE 2 15 DRAIN
technology SO16 Vcc 3 14 DRAIN
GND 4
 Constant voltage and constant current output 13 DRAIN
IREF 5 12 N.C.
regulation (CV/CC) with no optocoupler
ZCD/FB 6 11 N.A.
 High performance for stand-by & efficiency COMP 7 10 N.A.
 Integrated protections: 2nd OCP, open loop CDC 8 9 N.A.
protection (brownout) OLP, high OCP
 Automatic auto restart after fault  SOURCE
Power section Source
Power MOSFET CONTROLLER  Vcc
MAIN PARAMETERS
(SuperMESH) (BCD6S)
Main parameters controller supply voltage / ICHARGE output current
Break down voltage [V] 800  GND
controller ground
RDSon [Ohm] 11
 IREF
VDD [V] 11.5 ÷ 23 Current loop reference
 ZCD/FB
FOSC [KHz] Up to 166 kHz Zero Current Detection, Cvregulation, FF
compensation
Restart time during burst mode(1) 500us
 COMP
RTHJ-A [°C/W] (2) 80 Compensation network
POUT [W] @ 85-265VAC 6  CDC
Cable Drop Cpmplensation
(1) Also 125us, 250us and 1ms available  DRAIN
(2) Package SO16N and 100mm2 of Cu Power section Drain

44. Main electrical parameters – ALTAIR04-900
Main Features Pin description
 900V, avalanche rugged power section SOURCE 1 16 DRAIN
 QR current-mode PWM controller in BCD6 SOURCE 2 15 DRAIN
technology SO16 Vcc 3 14 DRAIN
 Constant voltage and constant current output GND 4 13 DRAIN
IREF 5 12
regulation (CV/CC) with no optocoupler N.C.
ZCD/FB 6 11 N.C.
 High performance for stand-by & efficiency
COMP 7 10 N.C.
 Integrated protections: 2nd OCP, open loop N.C. 8 9 N.C.
protection (brownout) OLP, high OCP
 Automatic auto restart after fault  SOURCE
Power section Source
Power MOSFET CONTROLLER  Vcc
MAIN PARAMETERS
(SuperMESH) (BCD6S)
Main parameters controller supply voltage / ICHARGE output current
Break down voltage [V] 900  GND
controller ground
RDSon [Ohm] 16
 IREF
VDD [V] 11.5 ÷ 23 Current loop reference
 ZCD/FB
FOSC [KHz] Up to 166 kHz Zero Current Detection, Cvregulation, FF
compensation
Restart time during burst mode(1) 500us
 COMP
RTHJ-A [°C/W] (2) 50 Compensation network
POUT [W] @ 85-265VAC 5  DRAIN
Power section Drain
(1) Also 125us, 250us and 1ms available
(2) Package SO16N and 100mm2 of Cu

45. E-DESIGN
45

46. e-DESIGN
46

47. Seminar
 1 day seminar
 Detailed topology understanding
 Inside VIPer functionality
 e-Design examples
 Magnetics introduction
 4 Cities
 Mexico City
 Guadalajara
 Monterrey
 Queretaro
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48. QUESTIONS
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