FAN5776

FAN5776 — Synchronous Boost and Series/Parallel 10-LED Driver October 2013 FAN5776 Synchronous Boost and Series / Parallel 10-LED Driver Features  Synchronous Current-Mode Boost Converter  Drives up to 10 LEDs at 25 mA Each in a Configuration of 5 Strings of 2 LEDs in Series  5 LED Outputs: High-Side Current Sources  Two Default Groups of 3x2-LED Channels and 2x2-LED Channels with Individual Enable and PWM Dimming Control to Support Various Lighting Applications, such as: o Backlighting of Dual-LCD Displays, LCD Display Plus Keypad Illumination  Boost PFM Mode Maximizes Efficiency Under Light Loads  2.3 V to 5.5 V Input Voltage Range  1.8 MHz Switching Frequency  Input Under-Voltage Lockout (UVLO)  Output Over-Voltage Protection (OVP)  Short-Circuit and Thermal Shutdown (TSD) Protection  12-Bump, 0.4 mm Pitch, 1.42 x 1.66 x 0.50 mm WLCSP Applications  Mid-and Large-Size LCD Modules  Cellular Mobile Handsets, Smart Phones  Smartbooks, Netbooks, MIDs  Pocket PCs  WLAN DC-DC Converter Modules  PDA, DSC, PMP, and MP3 Players Description The FAN5776 is a synchronous, constant-current LED driver capable of efficiently driving up to ten LEDs in a five-string, two-series LEDs per string configuration. Optimized for small form-factor applications, the 1.8 MHz switching frequency allows the use of tiny chip inductors and capacitors. For safety, the device features integrated over-voltage, shortcircuit, and thermal shutdown protections. In addition, input under-volt...