KP1262FSPA

KP126XF is a highly integrated constant-current LED power switch that employs quasi-resonant operation with active power factor correction control technology, delivering high power factor, low harmonic distortion, and high efficiency. The KP126XF integrates a 650V/600V high-voltage power MOSFET and a high-voltage supply circuit, simplifying system design and reducing production costs. Through a proprietary constant-current control algorithm, the device achieves high-accuracy constant-current output with excellent line and load regulation performance. The KP126XF incorporates comprehensive protection features to ensure safe and reliable system operation, including cycle-by-cycle OCP, OTP, output OVP, and LED open/short-circuit protection.

Applications

• Low-power LED bulb and tube driver

Key features

• Active power factor correction technology
• Full-voltage power factor > 0.9
• Integrated high-voltage supply circuit
• Integrated 650V/600V high-voltage MOSFET
• No VDD, COMP capacitor design
• Quasi-resonant mode high-efficiency operation
• ±3% constant current accuracy
• Ultra-low operating current
• Excellent line voltage and load regulation
• Internal protection features: continuously adjustable output OVP, cycle-by-cycle OCP, LEB, LED open and short circuit protection, OTP
• Package type SOP-7/DIP-7