Datasheet > VIPERGAN65

VIPERGAN65

更新时间： 2023-12-20 18:46:33

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		高压
页数	文件大小	规格书
35页	7053K
描述
采用增强模式GaN HEMT的高级准谐振离线高压变换器

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VIPERGAN65 数据手册

VIPERGAN65

Datasheet

Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT

Features

•

Quasi-resonant (QR) flyback controller

650 V E-mode power GaN transistor

Embedded sense FET

Dynamic blanking time and adjustable valley synchronization delay functions, to

maximize efficiency at any input line and load condition

•

Valley-lock to ensure constant valley skipping

Advanced power management for less than 30 mW standby power consumption

with adaptive burst-mode

•

Output OVP protection

Input voltage feed-forward compensation for mains independent OPP variation

Brown-in and brown-out protection

Input OVP protection

Embedded thermal shutdown

Frequency jitter for EMI suppression

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Application

VIPERGAN65

•

High efficiency power adapters

Fast battery chargers

Product label

Auxiliary power supply for appliances, industrial, consumers, lighting

Description

The VIPERGAN65 is a high voltage converter, designed for medium power quasi-

resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters, capable

to provide an output power up to 65 W in wide range.

Figure 1. Typical application

It integrates a complete set of features that provide an extremely flexible and

easy to use chip and helps to design a highly efficient offline power supply. The

ZVS quasi-resonant operation with the dynamic blanking time feature and the

valley synchronization function, that turns on the power switch always at the valley

of the drain resonance, reduces the switching losses and maximizes the overall

efficiency at any input line and load condition. The advanced power management

with the low quiescent helps to achieve low stand-by consumptions. The feed-forward

compensation minimizes the maximum output peak power variation over the entire

input voltage range.

In addition to the above functions, the device offers protection features that

considerably increase end-product’s safety and reliability: the output overvoltage

protection, the overtemperature protection (OTP), the overload protection (OLP), the

brown-in/out protection, that set the input voltage level to power on and power off

the converter and the input overvoltage protection (iOVP), that protects the system

in case of an abnormal increase of the input line. All the protections are auto-restart

mode.

DS14005 - Rev 2 - August 2022

www.st.com

For further information contact your local STMicroelectronics sales office.

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