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110VAC ACDC Buck LED Driver with ICL8002G

Open online SPICE simulator circuit link: lighting_led_ICL8002G_110VAC_buck.tsc


ACDC Buck LED Driver with ICL8002G

Simulation Results

VAC IN

LEDs

The non-isolated buck circuit drives the 3 LEDs with ~315mA average current, ~20% current ripple, and ~590ms time to light.
The main MOSFET is turned on in the first valley.

ICL8002G is a single-stage offline LED driver IC that is a perfect fit for flyback and floating buck topologies. It performs power factor
correction (PFC) and achieves high efficiency by quasi-resonant control.
This example is a buck converter for LED Retrofit Bulb with ICL8002G & CoolMOS™ 600V C6. A non-isolated buck topology is often used
if galvanic isolation is not required because of very low component cost (small inductor, MOSFET with low voltage rating) and small size.

Technical Assistance

Application: LED lighting
Other circuits
LEDs: Lumileds LXRx-Sxxx
Evaluation board: Non-isolated Buck with ICL8002G
Product info: ICL8002G