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دیتاشیت - BPS - Non-isolated Buck APFC Offline LED Controller

شماره قطعه BP2329A
شرح مفصل Non-isolated Buck APFC Offline LED Controller
تولید کننده BPS 
آرم BPS 


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BP2329A شرح
BP2329A
Non-isolated Buck APFC Offline LED Controller
Description
The BP2329A is a high precision non-isolated buck
controller with active PFC, specially designed for
universal input offline constant current LED lighting.
The controller 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 BP2329A utilizes patent pending floating ground
structure. The inductor current is sensed during the
whole switching cycle. So it achieves high precision
output current control, and excellent line regulation
and load regulation.
The BP2329A offers rich protection functions to
improve the system reliability, including LED open
circuit protection, LED short circuit protection, VCC
under voltage protection, CS resistor open circuit
protection and cycle by cycle current limit. All the
protection functions are auto-recovery. The system
reliability is further improved by the thermal
regulation function. The output current is reduced
when the controller is over temperature.
Features
Active PFC for High Power Factor and Low
THD
System Efficiency up to 95%
±3% LED Output Current Accuracy
Excellent Line and Load Regulation
Critical Conduction Mode Operation
Ultra Low (33uA) Start Up Current
Ultra Low (300uA) Operating Current
LED Short/Open Protection
Current Sensing Resistor Open Protection
Cycle by Cycle Current Limit
VCC Under Voltage Protection
Auto Fault Recovery
Thermal Regulation Function
Available in Tiny SOT23-6 Package
Applications
GU10/E27 LED Bulb, Spot Light
PAR30, PAR38 Lamp
T8/T10 LED String
Other LED Lighting
Typical Application
BP2329A
6 FB GATE 4
1 VCC
CS 5
3 COMP GND 2
AC
BP2329A_EN _DS_Rev.1.1
Figure 1. Typical application circuit for BP2329A
www.bpsemi.com
Bright Power Semiconductor Co. Confidential Customer Use Only
1

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