RT8487 High Efficiency BCM LED Driver Controller for High Power Factor Offline Applications General Description The RT8487 is a Boundary mode high PF floating buck constant LED current output controller with an internal gate driver.
The RT8487 features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency, better EMI performance.
The RT8487 achieves high power factor correction (PFC) and low total harmonic distortion of current (THDi) by a smart internal line voltage compensation circuit which has minimized system component counts; saved both PCB size and total system cost.
Especially, the RT8487 can use a cheap simple drum core inductor in the system ...

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