Grove Coulomb Counter 3.3V to 5V (LTC2941)

PRODUCT DETAILS

The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.It is the charge (symbol: Q or q) transported by a constant current of one ampere in one second:1C=1A•1s. A Coulomb Counter is a device to measure the current that your devices or sensors is using.

The Grove - Coulomb Counter 3.3V to 5V (LTC2941) is based on LTC2941, its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. This module measures the amount of amp-hours have been used, if you use a fully charged battery, you can test the amount of battery you have used, the remaining percentage, just like the remaining battery shown in your phone. Vice versa, if you are charging a battery, you can use this module to monitor the charging process.

Features

• Indicates Accumulated Battery Charge and Discharge
• High Accuracy Analog Integration
• 1% Charge Accuracy
• SMBus/I2C Interface

Typical Applications

• Low Power Handheld Products
• Cellular Phones
• MP3 Player
• Cameras
• GPS

Technical details

Part List

Links

• Wiki Grove - Coulomb Counter 3.3V to 5V (LTC2941)
• Grove Selection Guide

• Grove - Coulomb Counter 3.3V to 5V (LTC2941) Eagle Files
• Seeed LTC2941 Library
• Datasheet LTC2941

Video