ICL7673CBAZ

CMOS battery backup circuit, SOP-8, 38mA, GND - 0.3V to +18V, ICL7673CBAZ

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Price:: US $0.65~1.11 / piece [Get Latest Price]

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	US $0.65~1.11

PartNumber:: ICL7673CBAZ

Brand:: Intersil Corporation - Intersil | Pack: SOP | D/C: 11+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-01-30

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Part Number:ICL7673CBAZ
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Product Summary

The ICL7673CBAZ is a monolithic CMOS battery backup circuit that offers unique performance advantages over conventional means of switching to a backup supply. The ICL7673CBAZ 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 the ICL7673CBAZ will represents 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. 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. The applications of the ICL7673CBAZ include On Board Battery Backup for Real-Time Clocks, Timers, or Volatile RAMs, Over/Under Voltage Detector, Peak Voltage Detector and Other Uses: Portable Instruments, Portable Telephones, Line Operated Equipment.

Parametrics

ICL7673CBAZ absolute maximum ratings: (1)Input Supply (VP or VS) Voltage: GND - 0.3V to +18V; (2)Output Voltages PBAR and SBAR: GND - 0.3V to +18V; (3)Peak Current, Input VP (at VP = 5V): 38mA; Input VS (at VS = 3V): 30mA; PBAR or SBAR: 150mA.

Features

ICL7673CBAZ features: (1)Automatically Connects Output to the Greater of Either Input Supply Voltage; (2)If Main Power to External Equipment is Lost, Circuit Will Automatically Connect Battery Backup; (3)Reconnects Main Power When Restored; (4)Logic Indicator Signaling Status of Main Power; (5)Low Impedance Connection Switches; (6)Low Internal Power Consumption; (7)Wide Supply Range: 2.5V to 15V; (8)Low Leakage Between Inputs; (9)External Transistors May Be Added if Very Large Currents Need to Be Switched; (10)Pb-Free Plus Anneal Available (RoHS Compliant).