KP1313SPA

High Efficiency Quasi-Resonant, Primary Constant Current LED Controller

KP1313SPA is a high-performance quasi-resonant, primary control LED controller that provides high precision constant current output performance, especially suitable for medium and high power isolated lighting power supply.

KP1313SPA uses constant current loop to achieve quasi-resonant control, and the working mechanism of valley bottom turn-on can greatly reduce switching loss and improve efficiency while improving EMC. The chip integrates line voltage and load voltage constant current compensation, which can obtain excellent line voltage and load adjustment rate.

KP1313SPA integrates a variety of protection functions: VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), overheat protection (OTP), cycle term current protection (OCP), LED open and short circuit protection, etc.

Main feature

• High efficiency quasi-resonant operating mode

• Support double winding primary feedback design, peripheral simplification

• ±3% high constant current accuracy

• Ultra-low operating current

• Integrated constant current compensation for line voltage and load voltage

• Package form SOT23-6L

• Integrated protection features:

• Output Overvoltage protection (OVP)

• VDD Undervoltage Protection (UVLO)

• Weekly Term Current Protection (OCP)

• LED open and short circuit protection

• Over temperature Protection (OTP)

• Front blanking (LEB)

Typical application

• High power LED lighting

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