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ELM711 - Christmas LEDs Driver

General Description

The ELM711 is a sequencing circuit that is typically used to control strings of LEDs for use on Christmas trees, or to attract attention on signs.

Key Features

  • One button controls both power and patterns.
  • Circuit remembers settings with power off.
  • 16 different patterns.
  • Debounced control switch input.
  • Wide supply range.
  • 1.8 to 5.5 volts.
  • High current drive outputs.
  • Low power CMOS design Connection Diagram PDIP and SOIC (top view) VDD 1 LED4 2 LED5 3 PB 4 8 VSS 7 LED3 6 LED2 5 LED1 Block Diagram PB 4 power control VDD switch debounce EEPROM memory pattern selector pattern ge.

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Datasheet Details

Part number ELM711
Manufacturer ELM
File Size 89.66 KB
Description Christmas LEDs Driver
Datasheet download datasheet ELM711 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Description The ELM711 is a sequencing circuit that is typically used to control strings of LEDs for use on Christmas trees, or to attract attention on signs. Sixteen different patterns are pre-programmed into the circuit, and can easily be selected with the push of a button (and that same pushbutton also controls circuit on and off). No other external logic components are needed for the IC to operate, as all timing and control functions are performed internally. Each high current output is capable of directly driving an LED, but in order to drive a string of LEDs, a higher voltage supply and an interface circuit (often a transistor and two resistors) are required. See the Example Applications section for a short discussion on how you might typically use the ELM711 in a circuit.