LTC2959

RECOMMENDED FOR NEW DESIGNS

Ultra-Low Power Battery Gas Gauge

Data Sheet (Rev. A) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.80

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Overview

Operating Supply Current <1.0μA
Supply Voltage from 1.8V to 60V
0V to 60V Sense Voltage for Low-Side or High-Side Sensing
Fast 16-bit ADC Measures Voltage, Current and Temperature
1% Voltage, Current and Charge Accuracy
No Crystal or other Time Reference Required
Programmable Deadband Prevents Charge Drift

Includes Battery Voltage Watchdog
Includes Precision Temperature Sensor
Programmable Alerts and Min/Max Tracking Registers
Auxiliary ADC Input for Sensor Readout
I²C/SMBus Interface
Available in Small 10-Lead 3mm × 2mm DFN Package

The LTC2959 is an ultra-low power battery gas gauge that accurately measures charge, voltage, current and temperature. Its wide input voltage range and its low operating current make the LTC2959 suitable for many applications, including duty-cycled systems that operate over long lifetime.

A precision coulomb counter integrates current through an external sense resistor connected at any point in the battery current path. A 16-bit ADC can be configured to measure voltage, current, temperature and/or an auxiliary input in single-shot, duty-cycled (1S/52s) or continuous mode (2.5kS/s). The measurements are stored in internal registers accessible via the onboard I²C/SMBus interface.

The LTC2959 features programmable high and low thresholds and min/max tracking registers. If a threshold is exceeded, the device sets a flag in the internal status register and communicates an alert using the SMBus alert protocol when configured as such.

APPLICATIONS

Remote Sensors
Energy Harvesting Systems
Low-Power Handheld Products
Power Tools

Part Models: 2
1ku List Price: Starting From $3.80

Documentation

Data Sheet 1

LTC2959: Ultra-Low Power Battery Gas Gauge Data Sheet (Rev.A) 03/18/2022

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC2959IDDB#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2959IDDB#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

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