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KP126XF series
KP126XF Buck High Power Factor LED Constant Current Power Switch KP126XF is a highly integrated constant current LED power switch. The chip adopts quasi-resonant working mode, and with active power factor correction control technology, it can achieve high power factor, low harmonic distortion, and high efficiency. KP126XF integrates high-voltage 650V/600V power MOSFET and high-voltage power supply circuit internally, 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. KP126XF integrates complete 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
-
- Commodity name: KP126XF series
- 封装: SOP-7/DIP-7
- 品牌: Biyi Microelectronics
KP126XF Buck High Power Factor LED Constant Current Power Switch KP126XF is a highly integrated constant current LED power switch. The chip adopts quasi-resonant working mode, and with active power factor correction control technology, it can achieve high power factor, low harmonic distortion, and high efficiency. KP126XF integrates high-voltage 650V/600V power MOSFET and high-voltage power supply circuit internally, 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. KP126XF integrates complete 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
• Integrated high-voltage power supply circuit
• Integrated high-voltage 650V/600V 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 limit (OCP)
• Leading edge blanking (LEB)
• LED open and short circuit protection
• Overtemperature protection (OTP)
• Package type SOP-7/DIP-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
KP1261F
Buck
PF>0.9
Critical Conduction
650
9.5
External
<130
SOP-7
KP1262F
Buck
PF>0.9
Critical Conduction
650
4
External
<240
SOP-7
KP1264F
Buck
PF>0.9
Critical Conduction
600
1.8
External
<320
SOP-7
KP1264F
Buck
PF>0.9
Critical Conduction
600
1.9
External
<350
DIP-7
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Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
