STCF04

www.DataSheet.co.kr STCF04 High power white LED SuperCap driver with I²C interface Data brief Features ■ ■ ■ ■ ■ ■ ■ ■ 1.8 MHz buck-boost converter with 1.2 A peak current limiting and synchronous rectification Programmable current limit Burst mode operation when output is charged Selectable 200 mA / 400 mA SuperCap charging current Input voltage range 2.7 V to 5.5 V Programmable output charging voltage up to 5.5 V Full I²C control Operation modes: – Shutdown mode – Monitoring mode with NTC and SuperCap monitoring – Idle mode – Flash mode – Torch mode: up to 300 mA Controlled LED current in all modes Soft and hard triggering of flash, torch and picture light modes Torch dimming in 12 exponential steps Flash dimming in 8 steps Torch mode safety time-out Active balancing of SuperCap voltage SuperCap status flag Internally or externally timed flash operation Digitally programmable safety time-out in flash mode LED overtemperature detection and protection with external NTC resistor Shorted LED failure detection and protection Chip overtemperature detection and protection Order code STCF04TBR Package TFBGA25 (3 x 3 mm.) Rev 1 Packaging 3000 parts per reel 1/7 www.st.com 7 TFBGA25 (3 x 3 mm.) Applications ■ ■ ■ Cell phones and smartphones Camera flash/strobe PDAs and digital still cameras Description The STCF04 is a dedicated and space optimized high efficiency solution for driving a flash LED module in camera phones, PDAs and other handheld devices using the SuperCap techno...