STMicroelectronics STCF04TBR
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 technology. It is based on a DC-DC buck-boost converter, which ensures proper and efficient charging control and monitoring of the SuperCap within the entire battery voltage range. The output current control ensures good current regulation over the forward voltage spread characteristics of the flash LEDs in torch and flash mode operation.| Part No. | STCF04TBR |
|---|---|
| Datasheet | STCF04TBR Download |
| Manufacturer |  STMicroelectronics |
| Description | High power white LED SuperCap driver |
| Buy | Stock & Price |
FEATURES
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● 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...
