Part number:
CAT4139
Manufacturer:
Catalyst Semiconductor
File Size:
307.30 KB
Description:
22v high current boost white led driver.
CAT4139_CatalystSemiconductor.pdf
Datasheet Details
Part number:
CAT4139
Manufacturer:
Catalyst Semiconductor
File Size:
307.30 KB
Description:
22v high current boost white led driver.
CAT4139, 22V High Current Boost White LED Driver
The CAT4139 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs.
Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor.
LEDs connected in series are driven with a regulated cu
CAT4139 Features
* Switch Current Limit 750mA Drives LED strings up to 22V Up to 87% Efficiency Low Quiescent Ground Current 0.6mA 1MHz Fixed Frequency Low noise Operation Soft start “in-rush” current limiting
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