VIPER26LD datasheet(1/25 Pages) STMICROELECTRONICS

部件名	VIPER26LD

功能描述	Fixed frequency VIPerTM plus family

PDF	25 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 25 page

September 2010

Doc ID 17736 Rev 2

1/25

25

VIPER26

Fixed frequency VIPerTM plus family

Features

■ 800 V avalanche rugged power section

■ PWM operation with frequency jittering for low

EMI

■ Operating frequency:

– 60 kHz for L type

– 115 kHz for H type

■ Standby power < 50 mW at 265 VAC

■ Limiting current with adjustable set point

■ On-board soft-start

■ Safe auto-restart after a fault condition

■ Hysteretic thermal shutdown

Application

■ Auxiliary power supply for appliances

■ Power metering

■ LED drivers

■ SMPS for set-top boxes, DVD players and

recorders

Description

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

avalanche ruggedness power section, a PWM

controller, user defined overcurrent limit,

protection against feedback network

disconnection, hysteretic thermal protection, soft

start up and safe auto restart after any fault

condition.

Advance frequency jittering reduces EMI filter

cost. Burst mode operation and the devices very

low consumption both help to meet the standard

set by energy saving regulations.

Figure 1.

Typical topology (VOUT

≤V

DDCSon)

DIP-7

SO-16

SO16 narrow

VIPER26

DRAIN

COMP

GND

FB

LIM

VDD

VIPER26

DRAIN

COMP

GND

FB

LIM

VDD

DC Output Voltage

-

DC Input Voltage

Table 1.

Device summary

Order codes

Package

Packaging

VIPER26LN

DIP-7

Tube

VIPER26HN

VIPER26HD

SO16 narrow

Tube

VIPER26HDTR

Tape and reel

VIPER26LD

Tube

VIPER26LDTR

Tape and reel

www.st.com

类似零件编号 - VIPER26LD

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	VIPER267KDTR	1Mb / 28P	1050 V high voltage converter for ultra-wide input 23-Apr-2019
	VIPER26K	1Mb / 28P	1050 V high voltage converter for ultra-wide input 23-Apr-2019

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