VIPER22AS-E datasheet(1/20 Pages) STMICROELECTRONICS

部件名	VIPER22AS-E

功能描述	Low Power OFF-Line SMPS Primary Switcher

PDF	20 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 20 page

February 2006

Rev1

1/20

20

VIPer22ADIP - E

VIPer22AS - E

Low Power OFF-Line SMPS Primary Switcher

Features

■

Fixed 60kHZ Switching Frequency

■

9V to 38V Wide Range VDD Voltage

■

Current Mode Control

■

Auxiliary Undervoltage Lockout with Hysteresis

■

High Voltage Start-up Current Source

■

Overtemperature, Overcurrent and

Overvoltage Protection with Auto-Restart

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:

– 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.

Typical Power Capability

Mains type

SO-8

DIP-8

European (195 - 265 Vac)

12W

20W

US / Wide range (85 - 265 Vac)

7W

12W

DIP-8

SO-8

www.st.com

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 - VIPER22AS-E

制造商	部件名	数据表	功能描述
STMicroelectronics	VIPer22AS-E	392Kb / 21P	Low power OFF-line SMPS primary switcher 25-Nov-2010
STMicroelectronics	VIPer22AS-E	409Kb / 21P	Low power OFF-line SMPS primary switcher 25-Nov-2010

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类似说明 - VIPER22AS-E

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