JH5553B - JILIN SINO

JH5553B Non-isolated APFC Buck LED Driver

The JH5553B（LP/H） is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting. The driver with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized. The JH55.

Features

 Active-PFC for High PF and Low THD.
 No VCC and COMP capacitor.
 Integrated current sense resister.
 Critical Conduction Mode Operation.
 LED Short Protection.
 Cycle by Cycle Current Limit.
 Thermal Regulation Function.
 Adopts SOP-7 / DIP-8 package. Applications
 LED Bulb
 LED tube
 Other LED Light The JH5553B（LP/H） are built-in JFET start-up and IC power supply circuit, which enable the system to quickly start, and reduce the external power supply components, achieve smaller volume. The JH5553B（LP/H） offers rich protection functions to improve the system reliability, including.