VIPER28HE datasheet(1/32 Pages) STMICROELECTRONICS

部件名	VIPER28HE

功能描述	Off-line high voltage converters

PDF	32 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 32 page

This is information on a product in full production.

January 2013

Doc ID 15028 Rev 5

1/32

32

VIPER28

Off-line high voltage converters

Datasheet

− production data

Features

■ 800 V avalanche rugged power section

■ PWM operation with adjustable limiting current

■ 30 mW stand-by power at 265 Vac

■ Operating frequency:

– 60 kHz for L type

– 115 kHz for H type

■ Frequency jittering for low EMC

■ Output overvoltage protection

■ High primary current protection (2nd OCP)

■ Extra power timer for peak current

management

■ On-board soft-start

■ Safe auto-restart after a fault condition

■ Hysteretic thermal shutdown

Application

■ Auxiliary power supply for consumer and home

equipment

■ ATX auxiliary power supply

■ Low / medium power AC-DC adapters

■ SMPS for set-top boxes, DVD players and

recorders, white goods

Description

The device is an off-line converter with an 800 V

rugged power section, a PWM control, two levels

of over-current protection, over-voltage and

overload protections, hysteretic thermal

protection, soft-start and safe auto-restart after

any fault condition removal. Burst mode operation

and device very low consumption help to meet the

standby energy saving regulations. Advance

frequency jittering reduces EMI filter cost. The

extra power timer allows the management of

output peak power for a designed time window.

The high voltage start-up circuit is embedded in

the device.

Figure 1.

Typical application

DIP-7

SO 16

SO16 narrow

SDIP10

DC input high voltage

wide range

-

+

DC Output voltage

-

+

VIPER28

DRAIN DRAIN

EPT

VDD

CONT

FB

GND

Table 1.

Device summary

Order codes

Package

Packaging

VIPER28LN / VIPER28HN

DIP-7

Tube

VIPER28LE / VIPER28HE

SDIP10

VIPER28HD / VIPER28LD

SO16 narrow

VIPER28HDTR / VIPER28LDTR

Tape and reel

www.st.com

类似零件编号 - VIPER28HE

制造商	部件名	数据表	功能描述
STMicroelectronics	VIPER28HN	1Mb / 29P	Off-line high voltage converters 30-Sep-2008

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