VIPER0P数据手册集成电路（IC）的ACDC转换器离线开关规格书PDF

描述 Description

The device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control. The power MOSFET with 800 V breakdown voltage allows extended input voltage range to be applied, as well as to reduce the size of the DRAIN snubber circuit. This IC is capable of meeting the most stringent energy-saving standards as it has very low consumption and operates in pulse frequency modulation under light load. The Zero-Power mode (ZPM) feature enables the IC to work in an idle state, where the system is totally shutdown. An MCU can be easily connected to the IC for smart ZPM management and it can be supplied by the IC itself during the idle state. The design of flyback, buck and buck boost converters is supported. The integrated HV startup, sense FET, error amplifier and oscillator with jitter allow a complete application to be designed with a minimum component count. In flyback non isolated topology, a negative output voltage is easily set thanks to the integrated error amplifier with separate ground.

特性 Features

• Smart stand-by architecture using the Zero Power Mode (ZPM)
• ZPM management by MCU easily realizable
• 800 V avalanche-rugged power MOSFET allowing ultra wide VAC input range to be covered
• Embedded HV startup and sense-FET
• Current mode PWM controller
• Drain current limit protection (OCP)
• Wide supply voltage range: 4.5 V to 30 V
• Self-supply option allows to remove the auxiliary winding or bias components
• Minimized system input power consumption:
•Less than 4 mW @ 230 VAC in ZPM
•Less than 10 mW @ 230 VAC in no-load condition
•Less than 400 mW @ 230 VAC with 250 mW load
• Jittered switching frequency reduces the EMI filter cost
•60 kHz ±7% (type L)
•120 kHz ±7% (type H)
• Embedded E/A with 1.2 V reference and separate ground for easy negative voltage setting
• Protections with automatic restart: overload/short circuit (OLP), max. duty cycle counter, VCC clamp
• Pulse-skip protection to prevent flux-runaway
• Embedded thermal shutdown
• Built in soft start for improved system reliability

简介

VIPER0P属于集成电路（IC）的ACDC转换器离线开关。由制造生产的VIPER0PAC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。