Datasheet > 电源电路 > 开关式稳压器或控制器> VIPER22A-E

VIPER22A-E

更新时间： 2024-11-17 11:16:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关控制器开关式稳压器开关式控制器电源电路转换器开关式稳压器或控制器
页数	文件大小	规格书
20页	305K
描述
固定频率离线转换器

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中文翻译

获取价格

数据手册

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VIPER22A-E 数据手册

VIPer22ADIP - E

VIPer22AS - E

Low Power OFF-Line SMPS Primary Switcher

Features

■ Fixed 60kHZ Switching Frequency

■ 9V to 38V Wide Range V Voltage

■ Current Mode Control

SO-8

DIP-8

■ Auxiliary Undervoltage Lockout with Hysteresis

■ High Voltage Start-up Current Source

Description

■ Overtemperature, Overcurrent and

Overvoltage Protection with Auto-Restart

The VIPer22A-E combines a dedicated current

mode PWM controller with a high voltage Power

MOSFET on the same silicon chip.

Typical Power Capability

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:

Mains type

SO-8

DIP-8

European (195 - 265 Vac)

12W

20W

12W

US / Wide range (85 - 265 Vac)

– Large input voltage range on the V 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.

Block diagram

DRAIN

ON/OFF

60kHz

OSCILLATOR

REGULATOR

PWM

LATCH

INTERNAL

SUPPLY

R2 R3 R4

OVERTEMP.

DETECTOR

VDD

BLANKING

0.23 V

8/14.5V

42V

OVERVOLTAGE

LATCH

Ω

230

Ω

1 k

SOURCE

February 2006

Rev1

1/20

www.st.com

12 3 4 5 6 7...20

中文翻译

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