KP1061SPA

The KP106X series are highly integrated constant-current LED power switches that employ a quasi-resonant operating mode combined with active power factor correction control technology, achieving high power factor, low harmonic distortion, and high efficiency. The KP106X integrates an internal 650V high-voltage power MOSFET along with high-voltage startup and supply circuits, simplifying system design and reducing production costs. By sampling the inductor current over a full cycle, the chip delivers ultra-high precision constant-current output with excellent line voltage and load regulation performance. The KP106X incorporates comprehensive protection features to ensure safe and reliable system operation, including: VDD undervoltage lockout (UVLO), cycle-by-cycle current limiting (OCP), overtemperature protection (OTP), output overvoltage protection (OVP), and LED open-circuit and short-circuit protection.

Applications

• LED bulb lamps, downlights
• LED T5/T8 tube lights

Key features

• Active PFC, full-voltage power factor > 0.9
• Integrated high-voltage startup and supply circuit
• Integrated 650V high-voltage MOSFET
• Quasi-resonant mode for high-efficiency operation
• ±1% constant current accuracy
• Ultra-low operating current
• Excellent line voltage and load regulation
• Built-in protection features: output OVP, cycle-by-cycle OCP, LEB, LED open and short circuit protection, OTP
• Package types: SOP-7, DIP-7