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LM3644, LM3644TT
SNVSA52E
- AUGUST 2014
- REVISED SEPTEMBER 2016
LM3644 Dual 1.5-A Current Source Camera Flash LED Driver
1 Features
- 1 Dual Independent 1.5-A LED Current Source Programmability
- Accurate and Programmable LED Current Range from 1.4 mA to 1.5 A
- Torch Currents up to 360 mA (LM3644TT)
- Flash Timeout Values up to 1.6 seconds
(LM3644TT)
- Optimized Flash LED Current During Low Battery
Conditions (IVFM)
- > 85% Efficiency in Torch Mode (at 100 mA) and
Flash Mode (at 1 A to 1.5 A)
- Grounded Cathode LED Operation for Improved
Thermal Management
- Small Solution Size: < 16 mm2
- Hardware...