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KP14622
KP14622 High-precision, dimmable, buck LED constant current driver with PF>0.9 KP14622 is a high-precision, dimmable LED constant current driver control chip with PF>0.9. It is suitable for non-isolated buck LED constant current power supplies with a full range of AC input voltages. KP14622 supports PWM dimming, with a minimum dimming depth of 0.1%, and supports standby mode with standby power consumption less than 20mW. KP14622 integrates a 500V high-voltage power MOSFET and a 650V high-voltage power supply circuit. It can achieve self-power supply without start-up resistors and auxiliary windings, while saving the traditional external VDD capacitor and COMP capacitor, which speeds up the start-up time and greatly reduces the cost of the LED power supply. The circuit operates in a quasi-resonant mode with critical conduction of inductor current, and uses high-precision current sampling technology, combined with internal compensation, to achieve high constant current accuracy and excellent input/output regulation. KP14622 integrates multiple protection functions, including LED open circuit protection, LED short circuit protection, cycle-by-cycle overcurrent protection, and overtemperature protection, enhancing the safety and reliability of the LED power supply. The LED open circuit protection voltage can be continuously set via the ROVP pin.
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- Product Description
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- Commodity name: KP14622
- 封装: SOP-7
- 品牌: Biyi Microelectronics
KP14622 High-precision, dimmable, buck LED constant current driver with PF>0.9 KP14622 is a high-precision, dimmable LED constant current driver control chip with PF>0.9. It is suitable for non-isolated buck LED constant current power supplies with a full range of AC input voltages. KP14622 supports PWM dimming, with a minimum dimming depth of 0.1%, and supports standby mode with standby power consumption less than 20mW. KP14622 integrates a 500V high-voltage power MOSFET and a 650V high-voltage power supply circuit. It can achieve self-power supply without start-up resistors and auxiliary windings, while saving the traditional external VDD capacitor and COMP capacitor, which speeds up the start-up time and greatly reduces the cost of the LED power supply. The circuit operates in a quasi-resonant mode with critical conduction of inductor current, and uses high-precision current sampling technology, combined with internal compensation, to achieve high constant current accuracy and excellent input/output regulation. KP14622 integrates multiple protection functions, including LED open circuit protection, LED short circuit protection, cycle-by-cycle overcurrent protection, and overtemperature protection, enhancing the safety and reliability of the LED power supply. The LED open circuit protection voltage can be continuously set via the ROVP pin.
Main Features
• Integrated 500V high-voltage power MOSFET
• Input power factor >0.9
• Integrated high-voltage power supply, no VCC capacitor required capacitor capacitor
• Integrated loop compensation COMP capacitor
• High-precision current control <±2%@±100% output
• Wide range PWM dimming, 0.1%-100%
• High-efficiency quasi-resonant operating mode
• Low standby power consumption <20mW
• Protection functions:
• Continuously adjustable LED open-circuit protection
• LED short-circuit protection
• Cycle-by-cycle overcurrent protection
• Overtemperature protection
• Package type SOP-7
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Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
