概觀
The IS31BL3231 is a current-regulated charge pump
and ideal for powering high brightness LEDs for camera
flash and torch applications. The charge pump can be
set to regulate two current levels for FLASH and TORCH
modes. The IS31BL3231 automatically switches
between linear and boost modes ensuring that LED
current does not depend on the LED forward voltage.
IS31BL3231 provides low cost, space saving solution for
driving LED. It also integrates thermal and short circuit
protection function.
IS31BL3231 is available in DFN-10 (3mm × 3mm). It
operates from 2.7V to 5.5V over the temperature range
of -40°C to +85°C.