MIC2871 Datasheet | Micrel Semiconductor

Description The MIC2871 is a high-current, high-efficiency flash LED driver. The LED driver current is generated by an integrated inductive boost converter with a 2MHz switching frequency which allows the use of very small inductor and output capacitor. These features make the MIC2871 an ideal solution for high-resolution camera phone LED flash light driver applications. The MIC2871 operates in either flash or torch modes that can be controlled through the single-wire serial interface and/or external control pins. Default flash and torch brightness can be adjusted via an external resistor. A robust single-wire serial interface allows simple control by the host processor to support typical camera functions such as auto-focus, white balance, and image capture (flash mode). The MIC2871 is available in a 14-pin 3mm × 2mm LDFN package with a junction temperature range of - 40°C to +125°C. Datasheets and support documentation are available on Micrel’s web site at: .micrel.. Features - Up to 1.2A flash LED driving current - Highly-efficient, synchronous boost driver (up to 94%) - ±5% LED current accuracy - Control through single-wire serial interface or external control pins - Input voltage range: 2.7V to 5.5V - True load disconnect - Configurable safety time-out protection - Output overvoltage protection (OVP) - LED short detection and protection. - 1µA shutdown current - Available in 14-pin 3mm × 2mm LDFN package Applications - Camera phones/mobile handsets - Cell phones/smartphones - LED light for image capture/auto focus/white balance - Handset video light (torch light) - Digital cameras - Portable applications Typical Application Micrel Inc. - 2180 Fortune Drive - San Jose, CA 95131 - USA - tel +1 (408) 944-0800 - fax + 1 (408) 474-1000 - http://.micrel. May 29, 2013 052913-1.0 (while in progress) Revision 1.0 (final document) Micrel, Inc. Ordering Information Part Number Marking Code Temperature Range Package(1)...