IC SWIT SMPS CM OTP POWERSO10

VIPER20ASPTR-E

Manufacturer Part NumberVIPER20ASPTR-E
DescriptionIC SWIT SMPS CM OTP POWERSO10
ManufacturerSTMicroelectronics
SeriesVIPER™
VIPER20ASPTR-E datasheet
 


Specifications of VIPER20ASPTR-E

Output IsolationIsolatedFrequency Range90 ~ 200kHz
Voltage - Input8 ~ 15 VVoltage - Output700V
Power (watts)57WOperating Temperature25°C ~ 125°C
Package / CasePowerSO-10 Exposed Bottom PadNumber Of Outputs1
Output Voltage700 V (Min)Output Current500 mA
Mounting StyleSMD/SMTSwitching Frequency200 KHz
Fall Time100 nsRise Time50 ns
Synchronous PinNoLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names497-6164-2  
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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

VIPER20ASPTR-E Summary of contents

  • Page 1

    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 ...

  • Page 2

    Contents Contents 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 3

    VIPer20A-E 6 Electrical over stress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 4

    Electrical data 1 Electrical data 1.1 Maximum rating Table 1. Absolute maximum rating Symbol V Continuous Drain-Source Voltage ( Maximum Current D V Supply Voltage DD V Voltage Range Input OSC V Voltage Range Input COMP I Maximum ...

  • 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 ...

  • Page 6

    Electrical data Table 5. Error amplifier section Symbol Parameter V V Regulation Point DDREG DD V Total Variation DDreg G Unity Gain Bandwidth BW A Open Loop Voltage Gain VOL G DC Transconductance m V Output Low Level COMPLO V ...

  • 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 ...

  • Page 8

    Pin description 3 Pin description 3.1 Drain pin (Integrated Power MOSFET drain): Integrated Power MOSFET drain pin. It provides internal bias current during start-up via an integrated high voltage current source which is switched off during normal operation. The device ...

  • 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 ...

  • Page 10

    Typical circuit 4 Typical circuit Figure 3. Offline power supply with auxiliary supply feedback F1 TR2 Figure 4. Offline power supply with optocoupler feedback F1 TR2 10/34 BR1 ...

  • 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 ...

  • Page 12

    Operation description As soon as the power goes below this limit, the auxiliary secondary voltage starts to increase above the 13V regulation level, forcing the output voltage of the transconductance amplifier to low state (V < V COMP switch is ...

  • Page 13

    VIPer20A-E The soft start feature can be implemented on the COMP pin through a simple capacitor which will be also used as the compensation network. In this case, the regulation loop bandwidth is rather low, because of the large value ...

  • Page 14

    Operation description 5.5 External clock synchronization: The OSC pin provides a synchronisation capability when connected to an external frequency source. Figure 21 shows one possible schematic to be adapted, depending the specific needs. If the proposed schematic is used, the ...

  • 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 V DS 90% V ...

  • 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 ...

  • Page 17

    VIPer20A-E Figure 13. Over-temperature protection ...

  • 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 Ct Ct ...

  • 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) ...

  • Page 20

    Operation description Figure 17. Mixed soft start and compensation VIPer20 VDD DRAIN - OSC + 13V COMP SOURCE Figure 19. Typical compensation network VIPer20 VDD - OSC + 13V COMP SOURCE ...

  • 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. ...

  • Page 22

    Layout 7 Layout 7.1 Layout considerations Some simple rules insure a correct running of switching power supplies. They may be classified into two categories: – Minimizing power loops: The switched power current must be carefully analysed and the corresponding paths ...

  • 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 ...

  • Page 24

    Package mechanical data Table 9. Pentawatt HV 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 15.60 L1 14.60 L2 21.20 L3 22.20 L5 2.60 ...

  • 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 ...

  • Page 26

    Package mechanical data Table 11. DIP-8 Mechanical data Dim. Min A a1 0.51 B 1.15 b 0.356 b1 0.204 3.18 Z Figure 27. Package dimensions 26/34 mm Typ Max 3.32 0.020 ...

  • 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. ...

  • 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 ...

  • 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 ...

  • Page 30

    Package mechanical data 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 (± ...

  • 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 ...

  • 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

    ... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...