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BP9918C Datasheet(Scheda tecnica) 1 Page - Bright Power Semiconductor Co., Ltd.

Numero della parte BP9918C
Dettagli  Non-isolated Buck Offline LED Driver
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Produttore  BPS [Bright Power Semiconductor Co., Ltd.]
Homepage  http://www.bpsemi.com/en/
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BP9918C
Non-isolated Buck Offline LED Driver
BP9918C_EN _DS_Rev.1.3
www.bpsemi.com
1
BPS Confidential – Customer Use Only
晶丰明源半导体
Description
BP9918C is a high precision Buck constant current
LED
driver.
The
device
operates
in
critical
conduction mode and is suitable for 85Vac~265Vac
universal input offline LED lighting.
The BP9918C integrates a 500V power MOSFET.
With patent pending MOSFET driving technique, the
operating current of the IC is as low as 180uA. It
doesn’t need the auxiliary winding for VCC supply.
It can achieve excellent constant current performance
with very few external components, so the system
cost and size are minimized.
BP9918C utilizes patent pending current control
method. It can achieve precise output current and
excellent line regulation. The driver operates in
critical conduction mode, the output current does not
change with the inductance and output voltage.
The BP9918C offers rich protections to improve the
system reliability, including LED short circuit
protection, VCC under voltage protection and
thermal regulation function.
Typical Application
Features
Internal 500V Power MOSFET
Integrated HV JFET for VCC Power Supply
Critical Conduction Mode Operation
Low Operating Current
±5% LED Output Current Accuracy
LED Short Protection
VCC Under Voltage Protection
Thermal Regulation Function
Available in SOT23-3 Package
Applications
LED Candle Light
LED Bulb
Other LED Lighting
BP9918C
AC
1
3
2
DRAIN
VCC
CS
Figure 1. Typical application circuit for BP9918C




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