KP1063SP

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Product Description

KP1063SP is a highly integrated non-isolated buck Active PFC offline LED power switch IC designed for constant-current LED lighting applications.
The device operates using Quasi-Resonant (QR) Buck topology with Active Power Factor Correction (APFC) to achieve high power factor, low harmonic distortion, and improved efficiency. It integrates a 650V high-voltage MOSFET, high-voltage startup circuit, and internal power supply circuit, reducing external component requirements and simplifying LED driver design.
KP1063SP provides high-precision constant-current control by sensing the inductor current throughout the switching cycle. It includes complete protection functions such as LED open/short protection, over-voltage protection, cycle-by-cycle current limiting, thermal protection, and UVLO for reliable operation.
It is mainly used in high-efficiency LED lighting applications such as LED bulbs, ceiling lights, and T5/T8 LED tube lights.

Product Group	Integrated Circuit (IC)
Output Current	Up to 400mA (36V Output) / Up to 270mA (72V Output)
Protections/Features	Under-Voltage Lockout (UVLO), Cycle-by-Cycle Over-Current Protection (OCP), Output Over-Voltage Protection (OVP), LED Open-Circuit Protection, LED Short-Circuit Protection, Over-Temperature Protection (OTP), Leading Edge Blanking (LEB)
Operating Mode	Non-Isolated Quasi-Resonant (QR) Buck Constant-Current LED Driver with Active Power Factor Correction (APFC)