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ICL7673 - Automatic Battery Back-Up Switch

Features

  • low current consumption, wide operating voltage range, and exceptionally low leakage between inputs. Logic outputs are provided that can be used to indicate which supply is connected and can also be used to increase the power switching capability of the circuit by driving external PNP transistors. Ordering Information PART NUMBER TEMP. RANGE (°C).

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Datasheet Details

Part number ICL7673
Manufacturer Renesas
File Size 385.42 KB
Description Automatic Battery Back-Up Switch
Datasheet download datasheet ICL7673 Datasheet

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Full PDF Text Transcription

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ICL7673 Automatic Battery Back-Up Switch The Intersil ICL7673 is a monolithic CMOS battery backup circuit that offers unique performance advantages over conventional means of switching to a backup supply. The ICL7673 is intended as a low-cost solution for the switching of systems between two power supplies; main and battery backup. The main application is keep-alive-battery power switching for use in volatile CMOS RAM memory systems and real time clocks. In many applications this circuit will represent a low insertion voltage loss between the supplies and load. This circuit features low current consumption, wide operating voltage range, and exceptionally low leakage between inputs.
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