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ELM380 - Battery Charger Timer

Datasheet Summary

Description

The ELM380 is an 8 pin integrated circuit that is used to provide very long time interval outputs.

It is typically used for enabling the charge circuit in Nickel Cadmium battery chargers, but can be easily adapted for many other applications.

Features

  • Low power CMOS design - typically 1mA at 5V.
  • Wide supply range - 3.0 to 5.5 volt operation.
  • Quick settings of 8 or 14 hours.
  • Complementary outputs simplify designs.
  • External reset input for system use.
  • Internal pullup resistors for switch inputs.
  • High current drive outputs - up to 25 mA.
  • Line frequency input for accurate timing Connection Diagram PDIP and SOIC (top view) VDD 1 Out 2 Out 3 reset 4 8 VSS 7 start 6 8/14 hrs.

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Datasheet preview – ELM380

Datasheet Details

Part number ELM380
Manufacturer ELM Electronics
File Size 20.91 KB
Description Battery Charger Timer
Datasheet download datasheet ELM380 Datasheet
Additional preview pages of the ELM380 datasheet.

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Full PDF Text Transcription

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ELM380 Battery Charger Timer Description The ELM380 is an 8 pin integrated circuit that is used to provide very long time interval outputs. It is typically used for enabling the charge circuit in Nickel Cadmium battery chargers, but can be easily adapted for many other applications. An express ‘one button’ mode is provided on chip specifically for rechargeable battery circuits. In this mode, pressing the start button once initiates a user selectable 8 or 14 hour timing interval, after which the circuit shuts off. If one prefers, pressing that same button multiple times will allow for user programmable intervals of from 2 to 77 hours. The circuit requires a 60Hz full-wave rectified signal for its operation.
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