SGM3145
SGM3145 is 8-Channel PWM Dimming Charge Pump White LED Driver manufactured by SG Micro.
SGM3145 8-Channel PWM Dimming Charge Pump White LED Driver
GENERAL DESCRIPTION
The SGM3145 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.
The SGM3145 supports up to 8 white LEDs and regulates a constant current which the initial value can be set by an internal resistor. The part implements PWM dimming to...
