VIPER22AS-E STMicroelectronics, VIPER22AS-E Datasheet

IC OFFLINE SWIT PWM SMPS 8SOIC

VIPER22AS-E

Manufacturer Part Number
VIPER22AS-E
Description
IC OFFLINE SWIT PWM SMPS 8SOIC
Manufacturer
STMicroelectronics
Series
VIPER™r
Datasheets

Specifications of VIPER22AS-E

Output Isolation
Isolated
Frequency Range
54 ~ 66kHz
Voltage - Input
8 ~ 50 V
Voltage - Output
730V
Power (watts)
7W
Operating Temperature
25°C ~ 125°C
Package / Case
8-SOIC (0.154", 3.90mm Width)
Output Power
12 W, 7 W
Input Voltage
9 V to 38 V
Switching Frequency
60 KHz
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Output Voltage
730V
No. Of Outputs
1
Power Dissipation Pd
7W
Supply Voltage Range
9V To 38V
No. Of Pins
8
For Use With
497-9049 - BOARD EVAL BASED VIPER22ASTR-E497-8215 - BOARD EVAL BASED ON VIPER22A497-5864 - EVAL BOARD DUAL OUTPUT VIPER22A497-5071 - EVAL BOARD DIMMABLE HB PWR LEDVIPER22-LED-EV - VIPER LED POWER SUPPLY
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6800-5
VIPER22AS-E

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
VIPER22AS-E
Manufacturer:
EPSON
Quantity:
6 218
Features
Typical Power Capability
Block diagram
February 2006
US / Wide range (85 - 265 Vac)
Fixed 60kHZ Switching Frequency
9V to 38V Wide Range V
Current Mode Control
Auxiliary Undervoltage Lockout with Hysteresis
High Voltage Start-up Current Source
Overtemperature, Overcurrent and
Overvoltage Protection with Auto-Restart
European (195 - 265 Vac)
VDD
FB
Mains type
8/14.5V
42V
REGULATOR
INTERNAL
SUPPLY
_
+
+
_
DD
ON/OFF
Voltage
SO-8
12W
Low Power OFF-Line SMPS Primary Switcher
7W
S
OVERTEMP.
DETECTOR
FF
R
DIP-8
20W
12W
Q
OVERVOLTAGE
LATCH
Rev1
OSCILLATOR
R1
R2
60kHz
R3
FF
S
Description
The VIPer22A-E combines a dedicated current
mode PWM controller with a high voltage Power
MOSFET on the same silicon chip.
Typical applications cover off line power supplies
for battery charger adapters, standby power
supplies for TV or monitors, auxiliary supplies for
motor control, etc. The internal control circuit
offers the following benefits:
R4
Q
– Large input voltage range on the V
– Automatic burst mode in low load condition.
– Overvoltage protection in HICCUP mode.
LATCH
PWM
accommodates changes in auxiliary supply
voltage. This feature is well adapted to
battery charger adapter configurations.
BLANKING
SO-8
VIPer22ADIP - E
VIPer22AS - E
+
_
0.23 V
1 kΩ
DIP-8
230 Ω
SOURCE
DRAIN
DD
www.st.com
pin
1/20
20

Related parts for VIPER22AS-E

VIPER22AS-E Summary of contents

Page 1

... Automatic burst mode in low load condition. – Overvoltage protection in HICCUP mode. ON/OFF 60kHz OSCILLATOR PWM S LATCH OVERTEMP DETECTOR BLANKING OVERVOLTAGE LATCH Rev1 VIPer22ADIP - E VIPer22AS - E SO-8 DIP-8 DD DRAIN + _ 0.23 V 230 Ω 1 kΩ SOURCE www.st.com pin 1/20 20 ...

Page 2

... Pin Connections and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 Rectangular U-I Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2 Wide Range of VDD Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.3 Feedback Pin Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.4 Startup sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.5 Overvoltage threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 5 Operation pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 VIPer22ADIP/ VIPer22AS - E Rev1 ...

Page 3

... VIPer22ADIP/ VIPer22AS - E 1 Electrical Data 1.1 Maximum Ratings Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied ...

Page 4

... Figure 9 on page 12 5V 100V > HYST I = 2mA FB ( 0.5mA 50mA FB D (See Figure 10 on page 12) (See Figure 9, Figure 10 on page 12) (See Figure 9, Figure 10 on page 12)) (See Figure 9 on page 12) Rev1 VIPer22ADIP/ VIPer22AS - E Min. Typ. Max. Unit 730 V 0 Ω 31 100 Min. Typ. Max. Unit - 4 ...

Page 5

... VIPer22ADIP/ VIPer22AS - E Table 5. Oscillation section Symbol Parameter Oscillator frequency F OSC total variation Table 6. PWM Comparator section Symbol Parameter Peak current I Dlim limitation I I Shutdown current (See FBsd FB FB Pin input R FB impedance Current sense delay turn-OFF t Blanking time b Minimum Turn-ON t ONmin time Table 7 ...

Page 6

... DRAIN 5 SO VDD CONTROL VIPer22A Pin Function DD : Voltage value (typically 14.5V) at which the device starts switching and turns : Voltage value (typically 8V) at which the device stops switching and turns on Rev1 VIPer22ADIP/ VIPer22AS - E SOURCE 1 8 SOURCE VDD 4 5 DIP DRAIN V D SOURCE voltage and provides two thresholds: capacitor ...

Page 7

... VIPer22ADIP/ VIPer22AS - E 4 Operations 4.1 Rectangular U-I Output Characteristics Figure 3. Rectangular U-I output characteristics for battery charger complete regulation scheme can achieve combined and accurate output characteristics. Figure 3. presents a secondary feedback through an optocoupler driven by a TSM101. This device offers two operational amplifiers and a voltage reference, thus allowing the regulation of both output voltage and current ...

Page 8

... The MOSFET is switched off when the following equation is reached: 8/20 Figure 4. presents the internal current mode structure. which is proportional to the main current Id. s ⋅ 0.23V + = Rev1 VIPer22ADIP/ VIPer22AS - E pin voltage may vary as much as DD ...

Page 9

... VIPer22ADIP/ VIPer22AS - E By extracting Using the current sense ratio of the MOSFET G The current limitation is obtained with the FB pin shorted to ground (V a negative current sourced by this pin, and expressed by: By reporting this expression in the previous one possible to obtain the drain current limitation I ...

Page 10

... This is illustrated also in the same figure in dashed lines. 10/20 is lower than V . When reaching V DD DDon . Note that during the real starting phase t Figure 6 capacitor, waiting for the auxiliary winding to provide DD Rev1 VIPer22ADIP/ VIPer22AS - E , the start up DDon , the device ss ...

Page 11

... VIPer22ADIP/ VIPer22AS - E 4.5 Overvoltage threshold An overvoltage detector on the V exceeds V . This is illustrated in DDovp overvoltage event. Note that this event is only latched for the time needed and then the device resumes normal operation automatically. DDoff Figure 7. Overvoltage Sequence DDovp V DDon V DDoff V DS pin allows the VIPer22A to reset itself when V DD Figure 7 ...

Page 12

... Figure 8. Rise and Fall time 90 10% Figure 9. Start-up V Figure 10. Restart duty-cycle DDon V DDoff 12/ current DD0 V DDhyst V V DDoff DDon I DDch 10µ RST = -------------------------- - Rev1 VIPer22ADIP/ VIPer22AS - << Coss VDD DRAIN FB CONTROL SOURCE VIPer22A 100 kHz sw VDD DRAIN FB CONTROL SOURCE 2V VIPer22A 300V 100V ...

Page 13

... VIPer22ADIP/ VIPer22AS - E Figure 11. Peak drain current Vs. feedback current Dpeak 1/F OSC The drain current limitation is obtained for VFB = 0 V, and a negative current is drawn from the FB pin. See the Application section for further details. Figure 12. Thermal shutdown t FB 18V I 47nF FB VIPer22A V FB ⋅ ...

Page 14

... Operation pictures Figure 13. Switching frequency Vs. temperature Figure 14. Current Limitation vs. Temperature 14/20 VIPer22ADIP/ VIPer22AS - E Rev1 ...

Page 15

... VIPer22ADIP/ VIPer22AS - E 6 Mechanical Data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. 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 16

... Figure 15. Package Dimensions 16/20 Dimensions Databook (mm.) Nom. Min. 0.38 2.92 3.30 0.36 0.46 1.14 1.52 0.20 0.25 9.02 9.27 7.62 7.87 6.10 6.35 2.54 7.62 2.92 3.30 Gr. 470 Rev1 VIPer22ADIP/ VIPer22AS - E Max. 5.33 4.95 0.56 1.78 0.36 10.16 8.26 7.11 10.92 3.81 ...

Page 17

... VIPer22ADIP/ VIPer22AS - E Table 11. SO-8 Mechanical Data Ref ddd Figure 16. Package Dimensions Dimensions Databook (mm. Nom. Min. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 5.80 0.25 0.40 8° (max.) Rev1 Mechanical Data Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 6.20 0.50 1 ...

Page 18

... Order codes 7 Order codes Table 12. Order codes Part Number VIPER22ASTR-E VIPer22AS - E VIPer22ADIP - E 18/20 VIPer22ADIP/ VIPer22AS - E Package SO-8 SO-8 DIP-8 Rev1 Shipment Tape and Reel Tube Tube ...

Page 19

... VIPer22ADIP/ VIPer22AS - E 8 Revision history Table 13. Document revision history Date 09-Feb-2006 Revision 1 Initial release. Rev1 Revision history Changes 19/20 ...

Page 20

... 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 20/20 All other names are the property of their respective owners © 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Rev1 VIPer22ADIP/ VIPer22AS - E ...

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