FAN5341

LED Driver, Series Boost, with Integrated Schottky Diode and Single-Wire Digital Interface FAN5341 Description The FAN5341 is an asynchronous constant−current LED driver capable of efficiently delivering up to 500 mW to a string of up to five LEDs in series. Optimized for small form−factor applications, the 1.2 MHz fixed switching frequency allows the use of small chip inductors and capacitors. The FAN5341 uses a simple single−wire digital control interface to program the brightness levels of the LEDs in 32 linear steps by applying digital pulses. For safety, the device features integrated over−voltage, over−current, short−circuit detection, and thermal−shutdown protection. In addition, input under−voltage lockout protection is triggered if the battery voltage is too low. The FAN5341 is available in a very low profile, small form−factor 2 mm x 2 mm x 0.55 mm 6−lead UMLP package that is green and RoHS compliant. Features Asynchronous Boost Converter Internal Schottky Diode Up to 500 mW Output Power Drives 3 to 5 LEDs in Series 2.7 V to 5.5 V Input Voltage Range Single−Wire Digital Control Interface to Set LED Brightness Levels ♦ 32 Linear Steps 1.2 MHz Fixed Switching Frequency Soft−Start Capability Input Under−Voltage Lockout (UVLO) Output Over−Voltage Protection (OVP) Short−Circuit Detection Thermal Shutdown (TSD) Protection Low Profile 6−lead 2.0 x 2.0 x 0.55 mm UMLP Package This Device is Pb−Free, Halogen Free/BFR Free and is RoHS Compliant App...