• 2.5 V to 5.5 V Input Voltage Range
• Dual Independent 1.5-A LED Current Source Up to 1500 mA per channel in Flash mode Programmability
• Accurate and Programmable LED Current Range from 1.4 mA to 1.5 A
• Torch Currents up to 360 mA (LM3644TT)
• Flash Current up to 1500 mA
• Support Flash Timeout function
• Support Input Voltage Flash Monitor (IVFM)
• Size: 1.69mm × 1.31mm, DSBGA (12)

LM3644 can support most of hero LED vender products in the market so as to make LED flash driving design more easily. It can support up to 2 channel LED flashing or torching with 1.5-A maximum flash current and 360 mA (LM3644TT) torch current per each channel. LM3644 also supports flash timeout and IVFM to keep flash LED and system always being in safe.