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KP127XFH series
KP127XFH Low Harmonic, High Power Factor Buck LED Driver Power Switch KP127XFH is a highly integrated constant current LED power switch. The chip adopts a quasi-resonant operating mode, combined with active power factor correction control technology, to achieve high power factor, low harmonic distortion, and high efficiency performance. KP127XFH internally integrates a high-voltage 600V/650V power MOSFET and a high-voltage power supply circuit, simplifying system design and production costs. Through its unique constant current control algorithm, the chip can achieve high-precision constant current output, with excellent line voltage and load regulation performance. KP127XFH integrates comprehensive protection functions to ensure safe and reliable system operation, such as cycle-by-cycle current limit (OCP), over-temperature protection (OTP), output over-voltage protection (OVP), LED open circuit and short circuit protection, etc.
Category：
- Product Description
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- Commodity name: KP127XFH series
- 封装: SOP-7
- 品牌: Biyi Microelectronics
KP127XFH Low Harmonic, High Power Factor Buck LED Driver Power Switch KP127XFH is a highly integrated constant current LED power switch. The chip adopts a quasi-resonant operating mode, combined with active power factor correction control technology, to achieve high power factor, low harmonic distortion, and high efficiency performance. KP127XFH internally integrates a high-voltage 600V/650V power MOSFET and a high-voltage power supply circuit, simplifying system design and production costs. Through its unique constant current control algorithm, the chip can achieve high-precision constant current output, with excellent line voltage and load regulation performance. KP127XFH integrates comprehensive protection functions to ensure safe and reliable system operation, such as cycle-by-cycle current limit (OCP), over-temperature protection (OTP), output over-voltage protection (OVP), LED open circuit and short circuit protection, etc.
Main Features
• Active Power Factor Correction Technology
• Full Voltage Power Factor >0.9
• Harmonic current complies with IEC61000-3-2 Class C
• Integrated High Voltage Power Supply Circuit
• Integrated High Voltage 600V/650V MOSFET
• VDD, COMP capacitor-less design
• Quasi-Resonant Mode High Efficiency Operation
• ±3% Constant Current Accuracy
• Ultra-Low Operating Current
• Excellent Line and Load Regulation
• Internal Protection Functions:
• Continuously Adjustable Output Over Voltage Protection (OVP)
• Cycle-by-Cycle Current Limit (OCP)
• Leading Edge Blanking (LEB)
• LED Open and Short Circuit Protection
• Over Temperature Protection (OTP)
• Package Type SOP-7
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=72VPackage
KP1272FH
Buck
PF>0.9
Critical Continuous
650
4.4
External
<240
SOP-7
KP1274FH
Buck
PF>0.9
Critical Continuous
600
2.1
External
<270
SOP-7
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