Part Number: LTC4150, LTC4150CMS, LTC4150IMS
Function : Coulomb Counter / Battery Gas Gauge
Package: 10-Lead MSOP
Manufacturer: Linear Technology
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Description
The LTC4150 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 fl owing into or out of the battery. The part also indicates charge polarity as the battery is depleted or charged.
Pinout
Features
1. Indicates Charge Quantity and Polarity
2. ±50mV Sense Voltage Range
3. Precision Timer Capacitor or Crystal Not Required
4. 2.7V to 8.5V Operation
5. High Side Sense
6. 32.55Hz/V Charge Count Frequency
7. 1.5μA Shutdown Current
Official Homepage: http://www.linear.com/product/LTC4150
Reference Site
1. https://github.com/sparkfun/LTC4150_Coulomb_Counter_BOB
2. https://www.sparkfun.com/products/12052
LTC4150 Datasheet
