IC SWIT SMPS CM OTP PENTAWATT5

VIPER20A-22-E

Manufacturer Part NumberVIPER20A-22-E
DescriptionIC SWIT SMPS CM OTP PENTAWATT5
ManufacturerSTMicroelectronics
SeriesVIPER™
VIPER20A-22-E datasheet
 

Specifications of VIPER20A-22-E

Output IsolationIsolatedFrequency Range90 ~ 200kHz
Voltage - Input8 ~ 15 VVoltage - Output700V
Power (watts)57WOperating Temperature25°C ~ 125°C
Package / CasePentawatt-5 HV (Bent and Staggered Leads)Number Of Outputs1
Output Voltage700 VOutput Current500 mA
Mounting StyleThrough HoleSwitching Frequency200 KHz
Fall Time100 nsRise Time50 ns
Synchronous PinNoLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names497-6795-5
VIPER20A-22-E
  
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General features
V
Type
DSS
VIPer20A-E
700V
VIPer20ASP-E
700V
VIPer20ADIP-E
700V
Adjustable switching frequency up to 200 kHz
Current mode control
Soft start and shutdown control
Automatic burst mode operation in stand-by
condition able to meet “blue angel” norm (<1w
total power consumption)
Internally trimmed zener reference
Undervoltage lock-out with hysteresis
Integrated start-up supply
Over-temperature protection
Low stand-by current
Adjustable current limitation
Block diagram
VDD
13 V
June 2006
I
R
n
DS(on)
18
0.5A
0.5A
18
0.5A
18
PENTAWATT HV (022Y)
Description
All the devices are made using VIPower M0
Technology, combines on the same silicon chip a
state-of-the-art PWM circuit together with an
optimized, high voltage, Vertical Power MOSFET
(700V/ 0.5A).
Typical applications cover offline power supplies
with a secondary power capability of 10W in wide
range condition and 20W in single range or with
doubler configuration. It is compatible from both
primary or secondary regulation loop despite
using around 50% less components when
compared with a discrete solution. Burst mode
operation is an additional feature of this device,
offering the ability to operate in stand-by mode
without extra components.
OSC
ON/OFF
OSCILLATOR
SECURITY
PWM
LATCH
LATCH
S
UVLO
FF
FF
R1
R/S
Q
Q
LOGIC
S
R2 R3
OVERTEMP.
DETECTOR
1.7
0.5 V
+
s
_
delay
ERROR
AMPLIFIER
_
+
4.5 V
COMP
Rev 2
VIPer20A-E
SMPS primary I.C.
DIP-8
PENTAWATT HV
10
POWERSO-10
DRAIN
0.5V
_
+
+
6 V/A
250 ns
Blanking
_
CURRENT
AMPLIFIER
SOURCE
1
TM
1/34
www.st.com
34

VIPER20A-22-E Summary of contents

  • Page 1

    ... OSC ON/OFF OSCILLATOR SECURITY PWM LATCH LATCH S UVLO R LOGIC OVERTEMP. DETECTOR 1.7 0 delay ERROR AMPLIFIER _ + 4.5 V COMP Rev 2 VIPer20A-E SMPS primary I.C. DIP-8 PENTAWATT HV 10 POWERSO-10 DRAIN 0. V/A 250 ns Blanking _ CURRENT AMPLIFIER SOURCE 1 TM 1/34 www.st.com 34 ...

  • Page 2

    ... OSC pin (oscillator frequency Typical circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Operation description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1 Current mode topology 5.2 Stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.3 High voltage start-up current suorce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.4 Transconductance error amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.5 External clock synchronization 5.6 Primary peak current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.7 Over-temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.8 Operation pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/34 VIPer20A-E ...

  • Page 3

    ... VIPer20A-E 6 Electrical over stress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.1 Electrical over stress ruggedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7.1 Layout considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Contents 3/34 ...

  • Page 4

    ... Avalanche Drain-Source Current, Repetitive or Not Repetitive I D(AR 100°C; Pulse width limited Power Dissipation at T TOT T Junction Operating Temperature J T Storage Temperature STG 4/34 Parameter = 25 to 125°C) J max; < 1 25ºC C VIPer20A-E Value Unit –0.3 to 700 V Internally limited ±2 mA 4000 V 0 Internally limited ...

  • Page 5

    ... VIPer20A-E 1.2 Electrical characteristics T = 25° 13V, unless otherwise specified J DD Table 2. Power section Symbol Parameter BV Drain-Source Voltage I DS Off-State Drain I DSS Current Static Drain-Source R DS(on) On Resistance t Fall Time f t Rise Time r C Output Capacitance oss (1) On Inductive Load, Clamped. Table 3. ...

  • Page 6

    ... COMP DD V =2.5V; V =12V COMP DD Test conditions = COMP I = 10mA DPEAK V = 12V; COMP pin open Test conditions (see Figure 8) (see Figure 8) (see Figure 8) (see Figure 8) VIPer20A-E Min Typ Max Unit 12 150 KHz 1.1 1.5 1.9 mA/V 0.2 V 4.5 V -600 µA 600 µ ...

  • Page 7

    ... VIPer20A-E 2 Thermal data Table 8. Thermal data Symbol Parameter R Thermal Resistance Junction-pin thJA R Thermal Resistance Junction-case thJC R Thermal Resistance Ambient-case thJC 1. When mounted using the minimum recommended pad size on FR-4 board multylayer PCB. PENTAWATT PowerSO-10™ Max Max 2.0 2.0 Max 70 60 ...

  • Page 8

    ... COMP pin is shorted to voltage, which cannot overpass 13V. The output voltage DD VIPer20A 13V. For secondary regulation pin by transformer design, in order to DD ...

  • Page 9

    ... VIPer20A-E 3.5 OSC pin (oscillator frequency network must be connected on that to define the switching frequency. Note that t t despite the connection of R from 8V to 15V. It provides also a synchronisation capability, when connected to an external frequency source. Figure 1. Connection diagrams (top view) PENTAWATT HV PENTAWATT HV (022Y) Figure 2 ...

  • Page 10

    ... R2 C5 Figure 4. Offline power supply with optocoupler feedback F1 TR2 10/34 BR1 VDD DRAIN - OSC + 13V COMP SOURCE C6 C11 R3 BR1 VDD DRAIN - OSC VIPer20 + 13V COM P S OURCE C6 C11 R3 VIPer20A-E TR1 C10 VIPer20 FC00401 TR1 D2 L2 +Vcc C10 R6 ISO1 FC00411 +Vcc GND ...

  • Page 11

    ... VIPer20A-E 5 Operation description 5.1 Current mode topology: The current mode control method, like the one integrated in the devices, uses two control loops - an inner current control loop and an outer loop for voltage control. When the Power MOSFET output transistor is on, the inductor current (primary side of the transformer) is monitored with a ...

  • Page 12

    ... The equivalent switching frequency is also lower than the normal one, leading to a reduced consumption on the input main supply lines. This mode of operation allows the VIPer20A-E to meet the new German "Blue Angel" Norm with less than 1W total power consumption for the system when working in stand-by mode ...

  • Page 13

    ... Figure 18) shutdown. Once the "Shutdown" signal has been activated, the device remains in the Off state until the input voltage is removed. 5.4 Transconductance error amplifier The VIPer20A-E includes a transconductance error amplifier. Transconductance Gm is the change in output current (I l COMP G = ...

  • Page 14

    ... The device is automatically restarted when the junction temperature decreases to the restart temperature threshold that is typically 40ºC below the shutdown value 14/34 current and, consequently, the output power can be limited using the Figure 22 . The circuit based on Q1, R 0.5 – the range of 220K . 1 2 VIPer20A-E and R clamps the voltage (see Figure 13) ...

  • Page 15

    ... VIPer20A-E 5.8 Operation pictures Figure 5. V Regulation point DD I COM A PHI 0 I COM PLO V DDreg Figure 7. Transition time I D 10% Ipeak Figure 9. Breakdown voltage vs temperature 1.15 BV DSS (Normalized) 1.1 1. Temperature (°C) Figure 6. Slope = V DD FC00150 Figure FC00160 Figure 10. Typical frequency variation ...

  • Page 16

    ... Operation description Figure 11. Behaviour of the high voltage current source at start-up VDD VDDon VDDoff t Figure 12. Start-up waveforms 16/ VDD VDD Ref. UNDERVOLTAGE Auxiliary primary LOCK OUT LOGIC winding VIPer20 Start up duty cycle ~ 12% VIPer20A-E DRAIN 3 mA SOURCE FC00101A ...

  • Page 17

    ... VIPer20A-E Figure 13. Over-temperature protection Operation description 17/34 ...

  • Page 18

    ... Operation description Figure 14. Oscillator VDD Rt OSC 22nF 15nF 1,000 500 300 200 100 18/34 For R CLK FC00050 Forbidden area Ct(nF) = Forbidden area 40kHz Oscillator frequency vs Rt and VIPer20A-E > 1.2k and C 40KHz t t 880 Fsw(kHz) Fsw FC00030 FC00030 ...

  • Page 19

    ... VIPer20A-E Figure 15. Error amplifier frequency response 60 RCOMP = + RCOMP = 270k 40 RCOMP = 82k RCOMP = 27k RCOMP = 12k 20 0 (20) 0.001 Figure 16. Error amplifier phase response 200 150 100 50 0 (50) 0.001 0.01 0 Frequency (kHz) 0.01 0 Frequency (kHz) Operation description FC00200 100 1,000 FC00210 RCOMP = + RCOMP = 270k ...

  • Page 20

    ... OSC 10 k 20/34 Figure 18. Latched shut down AUXILIARY WINDING R2 Shutdown + C2 FC00431 Figure 20. Slope compensation DRAIN Figure 22. Current limitation circuit example VIPer20 VDD DRAIN - + 13V COMP SOURCE FC00470 VIPer20A-E VIPer20 R1 VDD - Q2 OSC + 13V COMP SOURCE FC00440 R2 R1 VIPer20 VDD DRAIN - OSC + 13V ...

  • Page 21

    ... VIPer20A-E 6 Electrical over stress 6.1 Electrical over stress ruggedness The VIPer may be submitted to electrical over-stress, caused by violent input voltage surges or lightning. Following the Layout Considerations is sufficient to prevent catastrophic damages most of the time. However in some cases, the voltage surges coupled through the transformer ...

  • Page 22

    ... Signal components C2, ISO1, C3, and C4 are using a dedicated track connected directly to the power source of the device. Figure 24. Recommended layout R1 C1 OSC From input diodes bridge U1 VIPerXX0 C2 22/34 (see Figure VDD DRAIN - C5 + 13V COMP SOURCE R2 C3 ISO1 C4 VIPer20A-E 24 secondary C7 D2 filtering and load C6 FC00500 ...

  • Page 23

    ... VIPer20A-E 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK These packages have a Lead-free second level interconnect . The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

  • Page 24

    ... VIPer20A-E inch Min Typ 0.169 0.189 0.046 0.054 0.094 0.014 0.022 0.024 0.031 0.193 0.205 0.295 0.307 0.366 0.382 0.409 0.396 0.409 6 ...

  • Page 25

    ... VIPer20A-E Table 10. Pentawatt HV 022Y ( Vertical High Pitch ) Mechanical data Dim Min A 4.30 C 1.17 D 2.40 E 0.35 F 0.60 G1 4.91 G2 7. 10.05 L 16.42 L1 14.60 L3 20.52 L5 2.60 L6 15.10 L7 6.00 M 2. Diam 3.65 Figure 26. Package dimension mm. Typ Max 4.80 1.37 2.80 0.55 0.80 5.21 7 ...

  • Page 26

    ... Figure 27. Package dimensions 26/34 mm Typ Max 3.32 0.020 1.65 0.045 0.55 0.014 0.304 0.008 10.92 9.75 0.313 2.54 7.62 7.62 6.6 5.08 3.81 0.125 1.52 VIPer20A-E Inch Min Typ Max 0.131 0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0.260 0.200 0.150 0.060 ...

  • Page 27

    ... VIPer20A-E Table 12. PowerSO-10 mechanical data Dim. Min A 3.35 A1 0.00 B 0.40 C 0.35 D 9. 9.30 E1 7.20 E2 7.20 E3 6.10 E4 5. 13. Figure 28. Package dimension mm Typ Max 3.65 0.132 0.10 0.000 0.60 0.016 0.55 0.013 9.60 0.370 7.60 0.291 1.27 9.50 0.366 7 ...

  • Page 28

    ... Package mechanical data Figure 29. Power Pad layout Figure 30. Tube shipment Table 13. Tube shipment Base Q.ty Casablanca 50 Muar 50 28/34 Bulk Q.ty Tube length (± 0.5) 1000 532 1000 532 VIPer20A (± 0.1) 10.4 16.4 0.8 4.9 17.2 0.8 ...

  • Page 29

    ... VIPer20A-E Figure 31. Reel shipment Table 14. Reel dimension Base Q.ty Bulk Q.ty A (max) B (min) C (± 0. (± 0.2) N (min) T (max) Note: All dimensoin are in mm. Package mechanical data 600 600 330 1.5 13 20.2 24.4 60 30.4 29/34 ...

  • Page 30

    ... Figure 32. Tape shipment Table 15. Tape dimension Tape width Tape Hole Spacing Component Spacing Hole Diameter Hole Diameter Hole Position Compartment Depth Hole Spacing Note: All dimensions are in mm. 30/34 VIPer20A (± 0. (± 0.1/-0) 1.5 D1 (min) 1.5 F (± 0.05) 11.5 K (max) 6.5 P1 (± ...

  • Page 31

    ... VIPer20A-E Figure 33. Pentawatt HV tube shipment ( no suffix ) Table 16. Tube dimension Base Q.ty Bulk Q.ty Tube length (± 0 (± 0.1) Note: All dimensions are in mm. Figure 34. Dip-8 Tube shipment (no suffix) Table 17. Tube dimension Base Q.ty Bulk Q.ty Tube length (± 0 (± 0.1) Note: All dimensions are in mm ...

  • Page 32

    ... Order code 9 Order code Table 18. Order code Part number VIPer20A-E VIPer20A-22-E VIPer20ADIP-E VIPer20ASP-E 32/34 VIPer20A-E Package PENTAWATT HV PENTAWATT HV (022Y) DIP-8 PowerSO-10 ...

  • Page 33

    ... VIPer20A-E 10 Revision history Table 19. Revision history Date Revision 28-Sep-2005 21-Jun-2006 1 Initial release. 2 New template, few updates Revision history Changes 33/34 ...

  • Page 34

    ... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 34/34 Please Read Carefully: © 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com VIPer20A-E ...