Tiny LED driver offers 32 dimming steps

The FAN5341 LED driver improves brightness and resolution in portable designs, while offering 32 linear dimming steps and driving up to five white LEDs in series. Features include an 83% efficiency, up to 500-mW of output power, and a 2.7 to 5.5-V input range.

Also, the device operates at 1.2-MHz switching frequency and integrates a Schottky diode to minimize the size of the external passive components and overall board space. With the FAN5341’s simple single-wire interface, a designer can easily control the brightness levels of the LEDs by transmitting digital pulses from the microcontroller to the FAN5341. Housed in a 6-pin 2 x 2-mm UMLP package, the part offers OVP, UVLO, short-circuit detection, and soft-start capability. ($0.72 ea/1,000 — samples now, 12 weeks ARO)

Fairchild Semiconductor , South Portland , ME
Sales 207-775-8100
http://www.fairchildsemi.com