SD4870 Datasheet (Silan Microelectronics) - CURRENT MODE PWM CONTROLLER

SD4870, CURRENT MODE PWM CONTROLLER

SD4870 is a current mode PWM controller IC for high performance, low standby power offline flyback converter application.

In no load or light load condition, the IC operates in Light Load Mode to reduce switching loss and improve efficiency.

Large value startup resistor could be used in the startup

SD4870 Features

* Frequency shuffling to improve EMI performance

* Light Load Mode for minimum standby power

* External programmable switching frequency

* 3uA low startup current

* Internal LEB circuit

* VDD over voltage and under voltage protection

* Gate output maximum voltage clamp