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OB3341S
Buck LED Driver with High PF
GENERAL DESCRIPTION
The OB3341S is a high power factor, monolithic Buck regulator with advanced features to provide high efficiency control and high accuracy constant current output for LED lighting applications.
OB3341S integrates a 2A
MOSFET to decrease physical volume.
It adopts constant on time control for power factor correction (PFC), zero current detectors (ZCD) to ensure quasi-resonant valley turn-on for high efficiency operation.
OB3341S offers good protection coverage including VCC under
voltage lockout (UVLO), VCC over
voltage protection, cycle-by-cycle current limiting, over temperature protection, COMP pin floa...