• Part: FAN5776
  • Description: Synchronous Boost and Series / Parallel 10-LED Driver
  • Manufacturer: Fairchild Semiconductor
  • Size: 1.97 MB
FAN5776 Datasheet (PDF) Download
Fairchild Semiconductor
FAN5776

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.

Key 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