Description

The FAN5343 is an asynchronous constant-current LED driver capable of efficiently delivering up to 500mW to a string of six (6) LEDs in series. Optimized for small form factor applications, the 1.2MHz fixed switching frequency allows the use of small chip inductors and capacitors.

Features

• Asynchronous Boost Converter − VOUT up to 24V

• Internal Schottky Diode

• Up to 500mW Output Power

• 2.7V to 5.5V Input Voltage Range

• Single-Wire Digital Control Interface to Set LED Brightness Levels − 32 Linear Steps

• Fixed Switching Frequency: 1.2MHz

• Soft-Start Capability

• Input Under-Voltage Lockout (UVLO)

• Output Over-Voltage Protection (OVP)

• Short-Circuit Detection

• Thermal Shutdown Protection (TSD)

• Small 6-Lead 2.0 x 2.0 x 0.55mm UMLP Package

Applications

• Cellular Mobile Handsets

• Mobile Internet Devices

• Portable Media Players

• PDA, DSC, MP3 Players