LP3773 Datasheet PDF - Shenzhen Xinmao Microelectronics Co., Ltd.

Description
   LP3773/4/5 is a high performance AC/DC power controller for battery chargers and adapters with built-in VCBO 750V power transistor. The device uses pulse frequency modulation (PFM) method to establish a discontinuous conduction mode (DCM) flyback power supply.

FEATUREs
■ Primary side feedback control high precision constant current and constant voltage
■ 30mW standby power consumption
■ Built-in transistor
■ Adjustable voltage drop compensation
■ Adjustable DC line compensation under constant current change
■ Random frequency jitter modulation reduces system electromagnetic interference
■ Open circuit protection
■ Overvoltage protection
■ Short circuit protection
■ Overtemperature protection
■ Adjustable line loss compensation

APPLICATIONs
■ Adapters, battery chargers for mobile phones, cordless phones, PDAs, MP3s and other portable devices.
■ LED drive current
■ Best choice for upgrading linear power supplies and RCC switching power supplies
■ Backup power supply, etc.