FAN5341 Datasheet | onsemi

Description The FAN5341 is an asynchronous constant- current LED driver capable of efficiently delivering up to 500 m W 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 Ro HS pliant. Features - Asynchronous Boost Converter - Internal Schottky Diode - Up to 500 m W 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 Ro HS pliant Applications - Cellular Mobile Handsets - Mobile Internet Devices - Portable Media Players - PDA, DSC, MP3 Players .onsemi. UDFN6 2 x 2, 0.65P CASE 517DS MARKING DIAGRAM &Z&2&K 341 &Z = Assembly Plant Code &2 = 2- Digit Date Code &K = Lot Code 341 = Specific Device Code ORDERING INFORMATION See detailed ordering and shipping information on page 2 of this data sheet. © Semiconductor ponents Industries, LLC,...