LM3551_NationalSemiconductor.pdf
Datasheet Details
Part number:
LM3552, LM3551
Manufacturer:
National Semiconductor
File Size:
756.51 KB
Description:
1a white led driver.
Note:
This datasheet PDF includes multiple part numbers: LM3552, LM3551.
Please refer to the document for exact specifications by model.
LM3552, LM3551, 1A White LED Driver
The LM3551 and LM3552 are fixed frequency, current mode step-up DC/DC converters with two integrated NFETs that can be used for precision LED brightness control.
The devices are capable of driving loads up to 1A from a single-cell Li-Ion battery.
The LM3551 and LM3552 can drive one or more high curr
LM3552 Features
* n n n n n n n n n Up to 1A total drive current Flash timeout protection Independent Torch/Flash/Shutdown modes LED disconnect in shutdown Programmable soft-start limits inrush current Over-voltage protection Wide voltage range 2.7 to 5.5V 1.25MHz constant switching frequency Small, low profile packa
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