LC5556LD, LC5550LD - Single-Stage Power Factor Corrected High Efficiency Non-Isolated Buck LED Driver

SANKEN

Datasheet Details

Part number	LC5556LD, LC5550LD
Manufacturer	Sanken
File Size	368.93 KB
Description	Single-Stage Power Factor Corrected High Efficiency Non-Isolated Buck LED Driver
Datasheet	LC5550LD-SANKEN.pdf
Note	This datasheet PDF includes multiple part numbers: LC5556LD, LC5550LD. Please refer to the document for exact specifications by model.

LC5550LD series are PWM and quasi-resonant topology non-isolated buck LED driver ICs.

PWM and quasi-resonant topology.
Integrated on-time control circuit (it realizes high power factor by average current control).
Integrated soft-start circuit (reduces power stress during start-up on the incorporated power MOSFET and output rectifier).
Integrated bias assist circuit (improves startup performance, suppresses VCC voltage droop during operation, and allows use of low-rated ceramic capacitor on VCC pin).
Integrated Leading Edge Blanking (.

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Published: May 8, 2014 |