LD7921 Datasheet (Leadtrend Technology) - Primary-Side PWM Power Switch

LD7921, Primary-Side PWM Power Switch

The LD7921 integrated a 700V power MOSFET and a primary-side feedback PWM controller with CV/CC operation in a SOP-6/DIP-7 package.

The LD7921 is designed for low power adapter/charger and LED lighting applications.

It minimizes the components counts and is available in tiny packages.

Those make it

LD7921 Features

* OTP (Over Temperature Protection) and OVP (Over Voltage Protection) to prevent the circuit from being damaged under abnormal conditions. Features z Built-in 700V Power MOSFET z Primary-side Feedback Control z Constant Current Control z Built-in Load Regulation Compensation z Built-in Primary Windin