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KP1255X series
KP1255X High-precision quasi-resonant boost active power factor correction LED driver KP1255X is a highly integrated boost LED constant current driver. 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. KP1255X integrates demagnetization signal detection technology, and integrates 650V high-voltage startup and power supply circuits. It does not require auxiliary winding detection demagnetization and power supply, simplifying system design and production costs. The chip integrates high-precision current sampling technology and high-precision output current reference voltage, and has good constant current output characteristics. KP1255X 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), etc.
Category：
- Product Description
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- Commodity name: KP1255X series
- 封装: SOP-8
- 品牌: Biyi Microelectronics
KP1255X High-precision quasi-resonant boost active power factor correction LED driver KP1255X is a highly integrated boost LED constant current driver. 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. KP1255X integrates demagnetization signal detection technology, and integrates 650V high-voltage startup and power supply circuits. It does not require auxiliary winding detection demagnetization and power supply, simplifying system design and production costs. The chip integrates high-precision current sampling technology and high-precision output current reference voltage, and has good constant current output characteristics. KP1255X 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), etc.
Main Features
• ±3% high-precision constant current control
• Single-stage active power factor correction technology
• No VDD, COMP capacitor design
• Integrated 650V high-voltage startup and power supply circuit
• Integrated 500V high-voltage MOS (KP12551)
• Integrated 600V high-voltage MOS (KP12554)
• OTP adjustable in grades
• Quasi-resonant mode high-efficiency operation
• Excellent line voltage and load regulation
• Internal protection functions:
• Output overvoltage protection (OVP)
• Cycle-by-cycle current limit (OCP)
• Leading edge blanking (LEB)
• Overtemperature protection (OTP)
• Package type SOP-8
Product Model
Topology Circuit
Power Factor
Operating Mode
MOS Withstand Voltage (V)
On-Resistance (Ω)
LED Open Circuit Protection
Recommended Output Power (W)
Vin=176-265Vac Vout=72VPackage
KP12551
Boost
PF>0.9
Critical Conduction
500
11
External
<22
SOP-8
KP12553
Boost
PF>0.9
Critical Conduction
500
2.5
External
<30
SOP-8
KP12554
Boost
PF>0.9
Critical Conduction
500
1.9
External
<50
SOP-8
Product Message
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Official Account
E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
