Fairchild Semiconductor FAN5646 Programmable Indicator Soft LED Blinker

• Order Now
• View Product ListDatasheetMore About Fairchild

The Fairchild Semiconductor FAN5646 programmable indicator soft LED blinker with TinyWire™ single-wire interface is a flexible and compact solution for a blinking or "breathing" LED indicator. The internal programmable blink algorithm on the Fairchild FAN5646 eliminates any need for continual system processor control, meaning longer battery life for a hand-held system. The Fairchild Semiconductor FAN5646 programmable indicator soft LED blinker also features follow or repeat pattern mode for blinking when the applications processor is powered down. LED blink rate, rise and fall time, and CTRL line behavior can be programmed by a TinyWire single-wire digital interface.

• LED "Soft" Blink: with Logarithmic Fade Up and Fade Down for Power Savings
  
• Follow or Repeat Pattern Mode for Blinking when Applications Processor is Powered Down
  
• Default Pattern Optionally Modified using TinyWire™ Single-Wire Digital Control for:
  LED Current Rise / Fall Time
  tON and tOFF for Up to Two Pulses
  
• High-Side Constant Current LED Driver:
  20mA Maximum Output Current
  80mV Drop-out at 20mA IOUT
  External RSET (SC70 only) or Internal Current Programming
  
• 35µA Operating Quiescent Current
  
• Short-Circuit, Under-Voltage, and Thermal Protections
  
• Wide Input Range: 2.7 to 5.5V
  
• 4-Bump WLCSP, 0.4mm pitch or 5-Lead SC70 (EIAJ SC88)

• Cell Phones
  
• Pocket PCs and Digital Cameras
  
• Bluetooth® Headsets, PMP and MP3 players

• 24.3KΩ Resistors
• 0.1μF Capacitors
• Thru Hole LEDs (rated at 20mA or less)
  
• SMD LEDs (rated at 20mA or less)