FAN5341
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...
