Datasheet Details
Part number:
LM3643A, LM3643
Manufacturer:
File Size:
1.39 MB
Description:
Synchronous boost dual led flash driver.
Note:
This datasheet PDF includes multiple part numbers: LM3643A, LM3643.
Please refer to the document for exact specifications by model.
LM3643A, LM3643, Synchronous Boost Dual LED Flash Driver
The LM3643 is a dual LED flash driver that provides a high level of adjustability within a small solution size.
The LM3643 utilizes a 2-MHz or 4-MHz fixedfrequency synchronous boost converter to provide power to the dual 1.5-A constant current LED sources.
The total LED current the LM3643 boost can
LM3643A Features
* 1 1.5 A Total Allowed LED Current During Operation (ILED1 + ILED2 = 1.5 A)
* Dual Independent LED Current Source Programmability
* Accurate and Programmable LED Current Range from 1.4 mA to 1.5 A
* Optimized Flash LED Current During Low Battery Conditions (IVFM)
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