JH5553B Datasheet | JILIN SINO

Description 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 JH5553B（ LP/H） integrates a 650V power MOSFET. With few external ponents, the LED output current can be precisely controlled. The JH5553B（LP/H） remove the VCC capacitor,P capacitor and RCS resistor to simplify the external BOM. And it utilizes patented current detection,with few external ponents,it achieves high precision output current,excellent line regulation and load regulation. Features - Active-PFC for High PF and Low THD. - No VCC and P 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 ponents, achieve smaller volume. The JH5553B（LP/H） offers rich protection functions to improve the system reliability, including LED load short protection.The system reliability is further improved by the thermal regulation function.The output current is reduced when the driver is in condition of over temperature. Adopts SOP-7 /DIP-8 package. 版本：201906A 1/10 Typical Application Non-isolated APFC Buck LED Driver JH5553B(LP/H) Figure 1(a). Typical application circuit for JH5553BLP Figure 1（b）Typical application circuit for JH5553BH 版本：201906A 2/10 Non-isolated APFC Buck LED Driver JH5553B(LP/H) Ordering Information Halogen-Tube N/A N/A Order codes Halogen-Free-Tube Halogen-Reel N/A N/A...