KP1276XF series-Shenzhen Yifangda Electronics Co., Ltd

Yifangda Electronics Co., Ltd., Shenzhen

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KP1276XF series

KP1276XF Buck type high power factor LED constant current power switch KP1276XF is a highly integrated constant current LED power switch. The chip adopts a quasi-resonant operating mode, and with active power factor correction control technology, it can meet the performance requirements of high power factor, low harmonic distortion, and high efficiency. KP1276XF integrates a high-voltage 650V power MOSFET, a 600V ultra-fast recovery diode, an 800V rectifier bridge, and a high-voltage self-powered circuit, simplifying system design and production costs. At the same time, the chip is optimized for surge resistance and can withstand a 4kV surge level at the optimal cost. Through a unique constant current control algorithm, the chip can obtain a high-precision constant current output, and the output line voltage and load adjustment rate are excellent. KP1276XF integrates complete protection functions to ensure safe and reliable system operation, such as: cycle-by-cycle current limit (OCP), over-temperature protection (OTP), input overvoltage protection, output overvoltage protection (OVP), LED open circuit and short circuit protection.

Category：

Biyi Microelectronics

Product Description

Commodity name: KP1276XF series
封装: ASOP-7
品牌: Biyi Microelectronics

Main Features

• Active Power Factor Correction Technology

• Input 90Vac~265Vac, Power Factor >0.9, THD<15%

• Integrated High-Voltage Power Supply Circuit

• Integrated 600V Ultra-Fast Recovery Diode

• Integrated 800V Rectifier Bridge

• Integrated High-Voltage 650V MOSFET

• No VDD, COMP Capacitor Design

• Quasi-Resonant Mode High-Efficiency Operation

• ±3% Constant Current Accuracy

• Ultra-Low Operating Current

• Excellent Line Voltage and Load Regulation

• Internal Protection Functions:

• Continuously Adjustable Output Overvoltage Protection (OVP)

• Cycle-by-Cycle Current Limiting (OCP)

• Leading Edge Blanking (LEB)

• LED Open and Short Circuit Protection

• Input Overvoltage Protection

• Over Temperature Protection (OTP)

• ASOP-7 Package

Product Model	Topology Circuit	Power Factor	Operating Mode	MOS Withstand Voltage (V)	On-Resistance (Ω)	LED Open Circuit Protection	Recommended Output Current (mA) Vin=176-265Vac Vout=72V	Package	Features

KP12760F	Buck	PF>0.9	Critical Conduction	650	14	External	<120	ASOP-7	Integrated Bridge Rectifier India Specific

KP12761F	Buck	PF>0.9	Critical Conduction	650	9.5	External	<130	ASOP-7	Integrated Bridge Rectifier India Specific

KP12762F	Buck	PF>0.9	Critical Conduction	650	4	External	<240	ASOP-7	Integrated Bridge Rectifier India Specific

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