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Linduino LTC2943 - DC1812A Linduino.INO File Download 40.00KB Linduino LTC2943 Linduino.CPP Download 6.00KB Linduino LTC2943 Linduino Header File Download 13.00KB
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Features
  • 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
Additional Details
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The LTC2943-1 measures battery charge state, battery voltage, battery current and its own temperature in portable product applications. The wide input voltage range allows use with multicell batteries up to 20V. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. Voltage, current and temperature are measured with an internal 14-bit No Latency ΔΣ™ ADC. The measurements are stored in internal registers accessible via the onboard I2C/SMBus Interface.

The LTC2943-1 features programmable high and low thresholds for all four measured quantities. If a programmed threshold is exceeded, the device communicates an alert using either the SMBus alert protocol or by setting a flag in the internal status register.

Applications

  • Power Tools
  • Portable Medical Equipment
  • Video Cameras
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Documentation View All Documentation
Linduino LTC2943 - DC1812A Linduino.INO File Download 40.00KB Linduino LTC2943 Linduino.CPP Download 6.00KB Linduino LTC2943 Linduino Header File Download 13.00KB
Part Models 4
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LTC2943-1

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Data Sheet

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UPDATED 12/14/2015
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LTC2943-1: 1A Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement Data Sheet

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UPDATED 09/19/2016
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LTC2943-1: 温度、電圧、電流を測定する1Aマルチセル・バッテリ・ガスゲージ データシート

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User Guide

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UPDATED 12/08/2015
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Documentation

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
LTC2943CDD-1#PBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LTC2943CDD-1#TRPBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LTC2943IDD-1#PBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LTC2943IDD-1#TRPBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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Oct 29, 2020

- 20_0067

Obsolescence of LTC2941-1, LTC2942-1 and LTC2943-1 products

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Software & Part Ecosystem

Parts Product Life Cycle Description

Battery Fuel Gauge and Coulomb Counter1
LTC2944
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PRODUCTION

60V Battery Gas Gauge with Temperature, Voltage and Current Measurement

Parts Product Life Cycle Description
LTC2943
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PRODUCTION

Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement

Evaluation Kits 1

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DC1812A-C

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

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DC1812A-C

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

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

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.



Resources

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DC1812A - Schematic Download

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DC1812A - Demo Manual Download

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DC1812A - Design Files Download

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DC1812A-C

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

Tools & Simulations 2

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.

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

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