Features
 Dual Independent 1.5A LED Current Source Programmability
 Accurate and Programmable LED Current Range from 1.4mA to
1.5A
 Torch Currents up to 360mA (AL3644TT)
 Flash Timeout Values up to 1.6 seconds (AL3644TT)
 Optimized Flash LED Current During Low Battery Conditions
(Input Voltage Flash Monitor)
 > 85% Efficiency in Torch Mode (at 100mA) and Flash Mode (at
1A to 1.5A)
 Grounded Cathode LED Operation for Improved Thermal
Management
 Small Solution Size: < 16mm2
 Hardware Strobe Enable (STROBE)
 Synchronization Input for RF Power Amplifier Pulse Events (TX)
 Hardware Torch Enable (TORCH/TEMP)
 Remote NTC Monitoring (TORCH/TEMP)
 400kHz I2C-Compatible Interface
– AL3644 (I2C Address = 0x63)
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)

Applications
 Camera Phone White LED Flash