LTC2943-1

Obsolete

1A Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement

Part Models
4
1ku List Price
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Part Details

  • Measures Accumulated Battery Charge and Discharge
  • 3.6V to 20V Operating Range for Multiple Cells
  • Integrated 50mΩ High Side Sense Resistor
  • ±1A Current Sense Range
  • 14-Bit ADC Measures Voltage, Current and Temperature
  • 1% Voltage, Current and Charge Accuracy
  • High Side Sense
  • General Purpose Measurements for Any Battery Chemistry and Capacity
  • I2C/SMBus Interface
  • Configurable Alert Output/Charge Complete Input
  • Quiescent Current Less Than 120μA
  • Small 8-Lead 3mm × 3mm DFN Package
LTC2943-1
1A Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement
Total Charge Error vs Current Sense Product Package 1
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Documentation

Data Sheet

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

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Hardware Ecosystem

Parts Product Life Cycle Description
Battery Fuel Gauge and Coulomb Counter 1
LTC2944 PRODUCTION 60V Battery Gas Gauge with Temperature, Voltage and Current Measurement
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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • LTC2943

Linduino 3

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC1812A-C

LTC2943-1 Demo Board | 20VIN, 1A Battery Gas Gauge w/ Internal RSENSE (requires DC2026)

Product Details

Demonstration circuit 1812A-C features the LTC2943-1. The LTC2943-1 has an operating range of 3.6V to 20V making it perfectly suited for multicell battery applications. A precision analog coulomb counter integrates current measured through the internal sense resistor. The LTC2943-1 measures voltage, current and temperature with an internal 14-bit No Latency ΔΣ™ ADC. The measurements are stored in internal registers accessible via the onboard SMBus/I2C interface.



DC1812A-C
LTC2943-1 Demo Board | 20VIN, 1A Battery Gas Gauge w/ Internal RSENSE (requires DC2026)
DC1812A-C Demo Board DC1812A-C Demo Board DC1812A-C Demo Board DC1812A-C Demo Board DC1812A - Schematic

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