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KP1054A
KP1054A Highly Integrated, High Efficiency, Buck Constant Current Driving Power Switch The KP1054A is an internally highly integrated buck quasi-resonant LED constant current power switch. The KP1054A integrates high-voltage power MOSFET, freewheeling diode, and controller. In addition, the chip also integrates a high-voltage startup circuit and an inductor current zero-crossing detection circuit that does not require an auxiliary winding. This feature allows the system to operate in quasi-resonant mode and greatly simplifies system design. The KP1054A integrates comprehensive protection functions to ensure safe and reliable system operation, such as HVDD undervoltage protection, cycle-by-cycle current limit, over-temperature protection, LED short-circuit protection, etc.
Category：
- Product Description
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- Commodity name: KP1054A
- 封装: SOP-4
- 品牌: Biyi Microelectronics
KP1054A Highly Integrated, High Efficiency, Buck Constant Current Driving Power Switch The KP1054A is an internally highly integrated buck quasi-resonant LED constant current power switch. The KP1054A integrates high-voltage power MOSFET, freewheeling diode, and controller. In addition, the chip also integrates a high-voltage startup circuit and an inductor current zero-crossing detection circuit that does not require an auxiliary winding. This feature allows the system to operate in quasi-resonant mode and greatly simplifies system design. The KP1054A integrates comprehensive protection functions to ensure safe and reliable system operation, such as HVDD undervoltage protection, cycle-by-cycle current limit, over-temperature protection, LED short-circuit protection, etc.
Main Features
• Integrated high-voltage 500V MOSFET
• Integrated 600V ultra-fast recovery diode
• Integrated high-voltage regulator
• No auxiliary winding, no VDD capacitor design
• Quasi-resonant operating mode improves system efficiency
• ±4% constant current accuracy
• Ultra-low operating current
• Integrated line voltage compensation optimizes regulation rate
• Integrated over-temperature power compensation
• Internal protection functions:
• LED short circuit protection
• Chip over-temperature protection
• Cycle-by-cycle current limit
• Leading edge blanking
• HVDD pin undervoltage protection
• Package type SOP-4
Product Message
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Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
