VIPER22A datasheet(1/15 Pages) STMICROELECTRONICS

部件名	VIPER22A

功能描述	LOW POWER OFF LINE SMPS PRIMARY SWITCHER

PDF	15 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 15 page

September 2002

1/15

VIPer22ADIP

VIPer22AS

LOW POWER OFF LINE SMPS PRIMARY SWITCHER

®

TYPICAL POWER CAPABILITY

n FIXED 60 KHZ SWITCHING FREQUENCY

n 9V TO 38V WIDE RANGE VDD VOLTAGE

n CURRENT MODE CONTROL

n AUXILIARY UNDERVOLTAGE LOCKOUT

WITH HYSTERESIS

n HIGH VOLTAGE START UP CURRENT

SOURCE

n OVERTEMPERATURE, OVERCURRENT AND

OVERVOLTAGE PROTECTION WITH

AUTORESTART

DESCRIPTION

The VIPer22A 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:

– Large input voltage range on the VDD pin

accommodates changes in auxiliary supply

voltage. This feature is well adapted to battery

charger adapter configurations.

– Automatic burst mode in low load condition.

– Overvoltage protection in hiccup mode.

Mains type

SO-8

DIP-8

European

(195 - 265 Vac)

12 W

20 W

US / Wide range

(85 - 265 Vac)

7 W

12 W

ORDER CODES

PACKAGE

TUBE

T&R

SO-8

VIPer22AS

13TR

DIP-8

VIPer22ADIP

-

SO-8

DIP-8

BLOCK DIAGRAM

ON/OFF

0.23 V

DRAIN

SOURCE

VDD

PWM

LATCH

60kHz

OSCILLATOR

BLANKING

+

_

8/14.5V

_

+

FF

S

R1

R4

Q

R3

FB

REGULATOR

INTERNAL

SUPPLY

OVERVOLTAGE

LATCH

OVERTEMP.

DETECTOR

1 k

Ω

42V

_

+

R2

FF

S

R

Q

230

Ω

类似零件编号 - VIPER22A

制造商	部件名	数据表	功能描述
STMicroelectronics	VIPER22A-E	409Kb / 21P	Low power OFF-line SMPS primary switcher 25-Nov-2010
	VIPER22ADIP-E	304Kb / 20P	Low Power OFF-Line SMPS Primary Switcher 09-Feb-2006
	VIPer22ADIP-E	392Kb / 21P	Low power OFF-line SMPS primary switcher 25-Nov-2010
	VIPer22ADIP-E	409Kb / 21P	Low power OFF-line SMPS primary switcher 25-Nov-2010
	VIPER22AS-E	304Kb / 20P	Low Power OFF-Line SMPS Primary Switcher 09-Feb-2006

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类似说明 - VIPER22A

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