LTC2941

NOT RECOMMENDED FOR NEW DESIGNS

Battery Gas Gauge with I2C Interface

Analog Devices LTC2941 Product Info

10 February 2026 6

Features

Indicates Accumulated Battery Charge and Discharge
High Accuracy Analog Integration
High Side Sense
1% Charge Accuracy
±50mV Sense Voltage Range
SMBus/I²C Interface

Configurable Alert Output/Charge Complete Input
2.7V to 5.5V Operating Range
Quiescent Current Less Than 100µA
Small 6-Pin 2mm × 3mm DFN and 8-Lead MSOP Packages

Part details & applications

The LTC2941 measures battery charge state in battery-supplied handheld PC and portable product applications. 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. The measured charge is stored in internal registers. An SMBus/I²C interface accesses and configures the device.

The LTC2941 features programmable high and low thresholds for accumulated charge. If a threshold is exceeded, the device communicates an alert using either the SMBus alert protocol or by setting a flag in the internal status register.

The LTC2941 requires only a single low value external sense resistor to set the current range.


	Integrated Sense Resistor
LTC2941	No
LTC2941-1	Yes

Applications

Low Power Handheld Products
Cellular Phones
MP3 Player
Cameras
GPS

Subscribe to Welllinkchips !

Your Name

* Email