JW1220

JW1220 Controller for Adaptive 100/120Hz Current Ripple Removing Circuit Parameters Subject to Change Without Notice ying kang ke ji you xian gong si chenS:13823203923 qq:2995984049 FEATURES Controller for adaptive 100/120Hz current ripple remover Built-in zener diode for input voltage clamping VG output voltage high to 10V Programmable amplitude of LED current ripple Programmable maximum cathode voltage of LED Programmable maximum LED current Short protection Over temperature protection SOT23-6L Package The adaptive technology of JW1220 ensures minimum power dissipation on NMOSFET while removing LED current ripple. JW1220 clamps the input voltage on VIN pin by 30V. Only one resistor is needed when the output voltage of AC/DC power is higher than 30V. JW1220 allows user to setup maximum LED current by the sensing resistor between the source of NMOSFET and ground, which keeps NMOSFET damaged when LED short connected or hot-plug. By sensing the drain voltage of NMOSFET via a resist...