WT7162RGUG24B数据手册Weltrend中文资料规格书

描述 Description

The WT7162RGUG24B is a high frequency multi-mode (QR/Valley Switching) Flyback PWM controller with an integrated 650V 225mΩ enhancement mode GaN FET. It is specifically designed to work with USB PD controller to provide a total solution for USB PD or a programmable power adapter. The WT7162RGUG24B helps to improve the overall efficiency and optimize the product performance. It operates in quasi-resonant (QR) mode during heavy load and operates in discontinuous conduction mode with valley switching during light load.
The WT7162RGUG24B minimizes the components counts and is available in a QFN 8*8 package. It provides important protection features, such as Brown In/Out, VDD OVP, OLP, OCP and Output Short Circuit Protection. Without an external LDO circuit, the WT7162RGUG24B can easily provide 3.3V to 21V (7x volts) wide-range output voltage application to effectively reduce total BOM cost.

特性 Features

●Built-in 650V 225mΩ (Typ.) Enhancement Mode GaN FET
●180 kHz Max. Frequency Operation
●700V Ultra HV Start-up Current
●Ultra HV Valley Charge Mode (VCM) for Wide Output Voltage Operation (USB PD 3.0 & PPS 3.3V~21V)
●Optimized for Wide Output Voltage
 -Adaptive OCP Compensation with Adjustable Line Compensation
 -Adaptive Green Mode Control
 -No External VDD Linear Regulator Circuit
 -Only One VDD Auxiliary Winding
●QR Mode/Valley-Switching Multi-Mode Operation
●Built-in X-Cap Discharge Function
●Internal Soft-Start Function
●Protection:
 -Brown In/Out Protection on HV Pin
 -Output Over Voltage Protection (VS_OVP)
 -VDD Over Voltage Protection (VDD_OVP)
 -Open Loop Protection (OLP) when Feedback Loop Open
 -Over Current Protection (OCP)
 -Internal Over Temperature Protection
 -CS Pin Open Protection
●Green Package: QFN 8*8