WT7130中文资料AC-DC Controllers数据手册Weltrend规格书

描述 Description

This WT7130 is a high-performance synchronous rectification controller. It is used to control a secondary-side synchronous rectification MOSFET in a flyback switch mode power supply. The WT7130 built-in several circuits to minimize external part counts and overall total system cost.
By sensing the voltage across the conduction resistance of MOSFET, the controller can determine the turn-on/turn-off timing of the internal driver to achieve loss-lowest and high speed sensing. Due to the 200V voltage rating of VD pin, the controller is suitable for high output current and wide output voltage range application (e.g., PD2.0, from 5V to 20V).

特性 Features

●Secondary side controller optimized for USB PD
●VDS MOSFET direct-sensing (200V)
●Suspending for light load operating
●Adjustable standby level by external resistor
●Low Startup current (<100uA)
●Low operation current at standby mode
●Suitable for flyback DCM/QR/Valley switching operation
●Wide VDD working range
●Pin Open/Short Protection
●Unique dynamic DRV control technology for fast turn off
●Outline Package: SOT-26