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FAN5645 Datasheet Indicator LED Blinker

Manufacturer: Fairchild (now onsemi)

Overview: FAN5645 — Indicator LED Blinker with Single-Wire Interface September 2007 www.datasheet4u.

General Description

The FAN5645 is a flexible and compact solution for a blinking LED indicator.

The internal programmable blink algorithm eliminates any need for continual system processor control.

This means longer battery life for the hand-held system because the system processor is not awakened from sleep mode just to blink an LED.

Key Features

  • Records and plays back blink patterns.
  • Single-wire digital control of LED blink rate and intensity.
  • Resistor-programmable LED maximum current.
  • High-side constant-current driver topology: - 20mA maximum output - 40mV typical dropout at 20mA.
  • 33µA operating current.
  • Standard 1.8V logic.
  • Short-circuit protection.
  • Thermal Shutdown Protection.
  • Under-Voltage Lockout Protection.
  • 6-pin 3.0 x 3.0mm MLP package.