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KP122
KP122 Thyristor Dimming, Buck-Boost Active Power Factor Correction LED Driver Controller KP122 is a highly integrated constant current LED driver controller. The chip adopts a quasi-resonant working mode, combined with active power factor correction control technology, which can meet the requirements of high power factor, low harmonic distortion, and high efficiency. KP122 integrates demagnetization signal detection technology internally, along with high-voltage startup and power supply circuits, eliminating the need for auxiliary windings for demagnetization detection and power supply, which simplifies system design and production costs. The chip integrates high-precision inductor current sampling technology and high-precision current comparator reference threshold voltage, and also includes line voltage compensation technology, offering excellent constant current output characteristics. KP122 also integrates unique dimming technology, providing excellent thyristor dimming performance. KP122 integrates complete protection functions to ensure safe and reliable system operation, such as: VDD Undervoltage Lockout (UVLO), 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: KP122
- 封装: SOP-8
- 品牌: Biyi Microelectronics
KP122 Thyristor Dimming, Buck-Boost Active Power Factor Correction LED Driver Controller KP122 is a highly integrated constant current LED driver controller. The chip adopts a quasi-resonant working mode, combined with active power factor correction control technology, which can meet the requirements of high power factor, low harmonic distortion, and high efficiency. KP122 integrates demagnetization signal detection technology internally, along with high-voltage startup and power supply circuits, eliminating the need for auxiliary windings for demagnetization detection and power supply, which simplifies system design and production costs. The chip integrates high-precision inductor current sampling technology and high-precision current comparator reference threshold voltage, and also includes line voltage compensation technology, offering excellent constant current output characteristics. KP122 also integrates unique dimming technology, providing excellent thyristor dimming performance. KP122 integrates complete protection functions to ensure safe and reliable system operation, such as: VDD Undervoltage Lockout (UVLO), 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
• Low-cost TRIAC dimming function
• Supports single-winding inductor
• Active power factor correction technology
• Power factor > 0.9
• ±3% constant current accuracy
• Startup time < 200ms
• Integrated high-voltage startup and power supply circuit
• Output OVP technology
• High-efficiency operation in quasi-resonant mode
• Ultra-low operating current
• Excellent line voltage and load regulation
• Internal protection functions:
• Cycle-by-cycle current limiting (OCP)
• LED open and short circuit protection
• Leading edge blanking (LEB)
• Over-temperature protection (OTP)
• Package type SOP-8
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