Datasheet > VIPER38

VIPER38

更新时间： 2024-11-17 00:58:35

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意法半导体 - STMICROELECTRONICS		/
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VIPerPlus family: peak power high-voltage converter

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VIPER38 数据手册

VIPER38

VIPerPlus family: peak power high-voltage converter

Datasheet

production data

• Output overvoltage protection with tight

tolerance and digital noise filter

• Soft-start reduces the stress during startup and

increases IC lifetime

• Automatic restart after a fault condition

• Thermal shutdown increases system reliability

and IC lifetime

Applications

• Auxiliary power supply for consumer and home

Figure 1. Typical application

equipment

• Power supply for energy meters and data

concentrators

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• Adapters

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Description

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The device is a high-voltage converter that

smartly integrates an 800 V rugged power

MOSFET with PWM current-mode control. The

power MOSFET allows a very high input V_acto be

applied, just limited from its breakdown voltage.

This IC is capable of meeting more stringent

energy-saving standards as it has very low

consumption and operates in burst mode under

light load.

Features

• 800 V avalanche-rugged power MOSFET

allowing ultra wide range input V_acto be

achieved

The device features an adjustable extra power

timer (EPT) that enables the IC to sustain

overload conditions for a few seconds.

• Embedded HV start-up and sense FET

• PWM current-mode controller

• OCP with selectable threshold (I_Dlim) and 2^nd

OCP with higher value (I_DMAX) to protect the IC

from transformer saturation or short-circuit of

the secondary diode

The integrated HV startup, sense FET and

oscillator with jitter allow the advantage of using

minimal components in the application.

The device features high-level protections like

dual-level OCP, output overvoltage, short-circuit,

and thermal shutdown with hysteresis. After the

removal of a fault condition, the IC is

• 30 mW no-load consumption at 230 V_ac

• Two operating frequencies:

– 60 kHz (L type) or 115 kHz (H type)

automatically restarted.

• Jittered frequency reduces the EMI

• Extra power timer (EPT) blanks the overload

current for few seconds

July 2015

DocID025703 Rev 2

1/31

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...31

中文翻译

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与VIPER38相关器件

型号	品牌	获取价格	描述	数据表
VIPER38HD	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER38HDTR	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER38HE	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER38LD	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER38LDTR	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER38LE	STMICROELECTRONICS	获取价格	VIPerPlus family: peak power high-voltage converter
VIPER50	STMICROELECTRONICS	获取价格	SMPS PRIMARY I.C.
VIPER50(022Y)	STMICROELECTRONICS	获取价格	2.7A SWITCHING REGULATOR, 200kHz SWITCHING FREQ-MAX, PZFM5, PENTAWATT HV-5
VIPER50/SP	STMICROELECTRONICS	获取价格	SMPS PRIMARY I.C.
VIPER50-22-E	STMICROELECTRONICS	获取价格	SMPS PRIMARY I.C.

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