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LTC4150

Linear Technology
Part Number LTC4150
Manufacturer Linear Technology
Description Coulomb Counter/ Battery Gas Gauge
Published Feb 11, 2007
Detailed Description FEATURES n Indicates Charge Quantity and Polarity n ±50mV Sense Voltage Range n Precision Timer Capacitor or Crystal Not...
Datasheet PDF File LTC4150 PDF File

LTC4150
LTC4150

Overview
FEATURES n Indicates Charge Quantity and Polarity n ±50mV Sense Voltage Range n Precision Timer Capacitor or Crystal Not Required n 2.
7V to 8.
5V Operation n High Side Sense n 32.
55Hz/V Charge Count Frequency n 1.
5μA Shutdown Current n 10-Pin MSOP Package APPLICATIONS n Battery Chargers n Palmtop Computers and PDAs n Cellular Telephones and Wireless Modems TYPICAL APPLICATION LTC4150 Coulomb Counter/ Battery Gas Gauge DESCRIPTION The LTC®4150 measures battery depletion and charging in handheld PC and portable product applications.
The device monitors current through an external sense resistor between the battery’s positive terminal and the battery’s load or charger.
A voltage-to-frequency converter transforms the current sense voltage into a series of output pulses at the interrupt pin.
These pulses correspond to a fixed quantity of charge flowing into or out of the battery.
The part also indicates charge polarity as the battery is depleted or charged.
The LTC4150 is intended for 1-cell ...


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