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KP1235X Series
KP1235X Boost-type Active Power Factor Correction LED Power Switch The KP1235X is a highly integrated boost-type LED constant current power switch. The chip uses a quasi-resonant operating mode and active power factor correction control technology to meet the requirements of high power factor, ultra-low harmonic distortion, and high efficiency. The KP1235X integrates demagnetization signal detection technology and high-voltage startup and power supply circuits. It does not require auxiliary windings for demagnetization and power supply detection, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology and high-precision output current reference voltage, and also integrates line voltage compensation technology, with good constant current output characteristics. The KP1235X integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), and output overvoltage protection (OVP).
Category：
- Product Description
-
- Commodity name: KP1235X Series
- 封装: SOP-7
- 品牌: Biyi Microelectronics
KP1235X Boost-type Active Power Factor Correction LED Power Switch The KP1235X is a highly integrated boost-type LED constant current power switch. The chip uses a quasi-resonant operating mode and active power factor correction control technology to meet the requirements of high power factor, ultra-low harmonic distortion, and high efficiency. The KP1235X integrates demagnetization signal detection technology and high-voltage startup and power supply circuits. It does not require auxiliary windings for demagnetization and power supply detection, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology and high-precision output current reference voltage, and also integrates line voltage compensation technology, with good constant current output characteristics. The KP1235X integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), and output overvoltage protection (OVP).
Main Features
• Supports auxiliary winding-less design
• Single-stage active power factor correction technology
• Full voltage power factor >0.95, THD<10%
• System start-up time <200ms
• ±3% constant current accuracy
• Integrated high-voltage start-up and power supply circuit
• Integrated high-voltage 500V MOSFET
• Quasi-resonant mode high-efficiency operation
• Ultra-low operating current
• Excellent line voltage and load regulation
• Internal protection functions:
• Output overvoltage protection (OVP)
• Cycle-by-cycle current limiting (OCP)
• Leading edge blanking (LEB)
• Overtemperature 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 Power (W)
Vin=176-265Vac Vout=72VPackage
KP12353
Boost
PF>0.9
Critical Conduction
500
2.4
External
<30
SOP-7
KP12354
Boost
PF>0.9
Critical Conduction
500
1.9
External
<40
SOP-7
Product Message
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E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
