G5916 Datasheet | Global Mixed-mode Technology

Global Mixed-mode Technology Inc. Flash LED Driver with 700m A Charge Pump Features - Independent flash/torch/shutdown modes - Up to 700m A drive current - Flash timeout protection - Torch mode set to 20% of flash current - 1X/2X mode for torch mode to maximize effi- ciency - Wide input voltage range from 3V to 5.5V - <1μA shutdown current - Input/Output over-voltage protection - Short-circuit protection - Over-temperature protection - Tiny TDFN3X3-10 package Applications - Cellular camera phone - Digital still camera - PDA camera - Camcorder torch lamp Ordering Information ORDER NUMBER G5916RE1U Note: RE: TDFN3X3-10 1: Bonding Code U: Tape & Reel MARKING 5916 General Description The G5916 is a charge pump for high-current white LED driving used in camera flash applications. The architecture of two bucket capacitors is used to decrease the output ripple and provides low EMI solution pared to inductive DC-DC regulators. The G5916 has independent flash/torch/shutdown modes. The G5916 is capable to output 500m A of regulated current in flash mode for the duration greater than 500ms. While driving 700m A output current, the reduced duration is limit by G5916’s over-temperature protection. There is a one second safety timer in this mode to avoid LED damage caused by overheat. The G5916 can outputs 20% of flash mode current continuously in torch mode. The flash mode has priority over the torch mode. A resistor connected to ISET pin, which is in series with the LED, is to set the current. The ISET voltage is 250m V and 50m V in flash and torch mode respectively. The G5916 is available in tiny 10-pin 3x3mm TDFN package. TEMP. RANGE -40°C to 85°C PACKAGE (Green) TDFN3X3-10...