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KP421X
KP421X Adaptive Current Ripple Cancellation Power Switch The KP421X is a current ripple cancellation chip that eliminates 100/120Hz frequency current ripple generated by the front-end LED driver and achieves flicker-free operation. The KP421X integrates an adaptive current adjustment function, minimizing power loss while achieving ripple cancellation. Its control algorithm ensures good steady-state and dynamic performance and is compatible with thyristor dimming. The KP421X integrates complete protection functions to ensure safe and reliable system operation, such as: LED short-circuit protection, overcurrent protection, open-circuit protection, and overtemperature protection.
Category：
- Product Description
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- Commodity name: KP421X
- 封装: ESOP-8
- 品牌: Biyi Microelectronics
KP421X Adaptive Current Ripple Cancellation Power Switch The KP421X is a current ripple cancellation chip that eliminates 100/120Hz frequency current ripple generated by the front-end LED driver and achieves flicker-free operation. The KP421X integrates an adaptive current adjustment function, minimizing power loss while achieving ripple cancellation. Its control algorithm ensures good steady-state and dynamic performance and is compatible with thyristor dimming. The KP421X integrates complete protection functions to ensure safe and reliable system operation, such as: LED short-circuit protection, overcurrent protection, open-circuit protection, and overtemperature protection.
Main Features
• Suitable for high current ripple constant current applications
• Built-in high-voltage self-powered circuit
• Integrated 150V/80V MOSFET
• Built-in loop compensation, fast response
• Compatible with thyristor dimming
• Fast on/off switching without overshoot
• Surge current limiting
• LED short circuit protection
• OTP over temperature protection
• ESOP-8 package
Product Model
Topology Circuit
Operating Mode
MOS Withstand Voltage (V)
On-Resistance (Ω)
LED Open Circuit Protection
Recommended Output Current (mA)
Vin=176-265Vac Vout=72V
Package
KP4213
Linear
Linear
150
0.25
Yes
<400
ESOP-8
KP4214
Linear
Linear
80
0.44
Yes
<400
ESOP-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
