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BP9912A

Part Number	BP9912A
Manufacturer	BPS
Description	Non-isolated Buck Constant Current LED Driver
Published	Apr 17, 2019
Detailed Description	BP9912A Non-isolated Buck Constant Current LED Driver Description BP9912A is a high precision Buck constant current LE...
Datasheet	BP9912A PDF File

Overview

BP9912A Non-isolated Buck Constant Current LED Driver Description BP9912A 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 BP9912A 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.
BP9912A 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 BP9912A offers rich protections to improve the system reliability, including LED short circuit protection, VCC under voltage protection and thermal regulation function.
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 TO-92 Package Applications  LED Candle Light  LED Bulb  Other LED Lighting Typical Application AC DRAIN 3 CS 2 VCC 1 BP9912A BP9912A_EN_DS_Rev.
1.
2 Figure 1.
Typical application circuit for BP9912A www.
bpsemi.
com BPS Confidential – Customer Use Only 1 BP9912A Non-isolated Buck Constant Current LED Driver Ordering Information Part Number BP9912AY BP9912AZ BP9912AT Package TO-92 TO-92 TO-92 Operating Temperature -40 ℃ to 105 ℃ -40 ℃ to 105 ℃ -40 ℃ to 105 ℃ Packing Method Unshaped without tape 1，000pcs/bag Shaped without tape 1，000pcs/bag Shaped in tape 2,000 pcs/box Marking BP9912A XXXXXY XYY BP9912A XXXXXY XYY BP9912A XXXXXY XYY Pin Configuration and Marking Information BP9912A XXXXXY XYY XXXXXY: Lot ...

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