Datasheet Summary
LM3553 1.2A Dual Flash LED Driver System with I2C patible Interface
..
March 6, 2008
LM3553 1.2A Dual Flash LED Driver System with I2C patible Interface
General Description
The LM3553 is a fixed frequency, current mode step-up DC/ DC converter with two regulated current sinks. The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery. One or more high current flash LEDs can be driven in series either in a high power Flash mode or a lower power Torch mode controlled by either an internal register or the FEN pin. Additionally a low current (20mA) indicator mode and a fixed output voltage mode are also available. The LM3553 has 128 current...
