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BP2326AJ Datasheet Preview

BP2326AJ Datasheet

Non-isolated Buck APFC Offline LED Controller

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BP2326AJ
Non-isolated Buck APFC Offline LED Driver
Description
The BP2326AJ 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 BP2326AJ integrates a 500V power MOSFET.
With few external components, the LED output current
can be precisely controlled.
The BP2326AJ 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 BP2326AJ 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 driver
is over temperature.
Features
Active PFC for High Power Factor and Low THD
Internal 500V Power MOSFET
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 SOP8 Package
Applications
GU10/E27 LED Bulb, Spot Light
PAR30, PAR38 Lamp
T8/T10 LED String
Other LED Lightin
Typical Application
AC
BP2326AJ
5 DRAIN
FB 4
6 DRAIN
CS 8
3 VCC
1 COMP
CS 7
GND 2
BP2326AJ_EN _DS_Rev.1.2
Figure 1. Typical application circuit for BP2326AJ
www.bpsemi.com
Bright Power Semiconductor Co. Confidential – Customer Use Only
1




BPS

BP2326AJ Datasheet Preview

BP2326AJ Datasheet

Non-isolated Buck APFC Offline LED Controller

No Preview Available !

Ordering Information
Part Number
Package
BP2326AJ
SOP8
BP2326AJ
Non-isolated Buck APFC Offline LED Driver
Operating
Temperature
-40 to 105
Packing Method
Tape
4,000 Pcs/Reel
Marking
BP2326A
XXXXXY
WXYYJ
Pin Configuration and Marking Information
Pin Definition
Pin No.
Name
1 COMP
2 GND
3 VCC
4 FB
5,6 DRAIN
7,8 CS
COMP
GND
VCC
FB
CS
CS
DRAIN
DRAIN
Figure 2. Pin configuration
XXXXXY: Lot Code
W: Sign
X: Year
YY: Week
Description
Loop Compensation Node. This pin connects a capacitor to GND for
stabilization of the control loop, achieving accurate LED current, high
Power Factor and low THD.
Ground.
Power Supply Pin. Connect a bypass capacitor from this pin to GND.
Feedback Voltage Input Pin. This pin detects the inductor
demagnetization signal and the output voltage.
Internal HV Power MOSFET Drain.
Current Sense Pin. Connect a resistor to GND to sense the inductor
current.
BP2326AJ_EN _DS_Rev.1.2
www.bpsemi.com
Bright Power Semiconductor Co. Confidential – Customer Use Only
2


Part Number BP2326AJ
Description Non-isolated Buck APFC Offline LED Controller
Maker BPS
Total Page 8 Pages
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