Battery Tester Reference Design for High Current Applications

(ACTIVE) TIDA-01040

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Key Document

Description

Li-Ion battery formation and electrical testing require accurate voltage and current control, usually to better than ±0.05% over the specified temperature range.  This reference design proposes a solution for high-current (up to 50 A) battery tester applications supporting input (bus) voltages from 8 V–16 V and output load (battery) voltages from 0V–5V. The design utilizes an integrated multi-phase bidirectional controller, LM5170, combined with a high precisiondata converters and instrumentation amplifiers to achieve charge and discharge accuracies of 0.01% full scale. To maximize battery capacity and minimize battery formation time, the design uses highly-accurate constant current (CC) and constant voltage (CV) calibration loops with a simplified interface. All key design theories are described guiding users through the part selection process and optimization. Finally, schematic, board layout, hardware testing, and results are also presented.

Features
  • Battery test subsystem with calibration control achieving 0.01% full scale current control accuracy
  • Supports up to 50-A applications with an input voltage (bus) from 8 V–16 V and output load (battery) from 0 V–4.5 V (5 V max)
  • LM5170 bidirectional buck, boost controller
  • Programmable high-precision reference supplied by DAC80004
  • Voltage and current monitoring provided by the ADS131A04 24 bit delta-sigma
  • User friendly control interface

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (22)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS131A04  24-Bit, 128kSPS, 4-Ch, Simultaneous-Sampling Delta-Sigma ADC  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
DAC80004  Ultra-Small, true 16-bit quad voltage output DAC with 1LSB INL/DNL   Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
INA188  36-V, Zero-Drift, Rail-to-Rail-Out Instrumentation Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LM2664  1.8V to 5.5Vin Switched Capacitor Voltage Converter  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules
LM5118  3-75V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules
LM5170-Q1  Multiphase Bidirectional Current Controller  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules
LM6142  Dual High Speed/Low Power 17 MHz Rail-to-Rail I/O Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA2277  10µV, 0.1µV/˚C, High-Precision, Low-Power Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA827  Low-Noise, High-Precision, JFET-Input Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5025  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
REF5050  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
SN74LV1T00  Single power supply 2-input POSITIVE NAND gate logic level shifter  Voltage level translation  Sample & Buy Not Available
SN74LV1T32  Single Power Supply 2-INPUT POSITIVE OR GATE with Logic Level Shifter  Voltage level translation  Sample & Buy Not Available
SN74LV4053A-Q1  Automotive Catalog Triple 2-Channel Analog Multiplexer/Demultiplexer  Switches & multiplexers  Not Available View Design Kits & Evaluation Modules
SN74LVC1G04-Q1  Automotive Catalog Single Inverter  Buffer/driver  Sample & Buy Not Available
THS4561  Low Power, 70MHz, High Supply Range, Fully Differential Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV07  36-V Precision, Rail-to-Rail Output, Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TM4C1294NCPDT  IoT enabled High performance 32-bit ARM® Cortex®-M4F based MCU  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPD4S012  4-Channel USB ESD Solution with Power Clamp  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150mA 30V Ultra-Low-Iq Wide-Input Low-Dropout (LDO) Regulator With Reverse Current Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS717  150mA, High PSRR, Low Quiescent Current, Low Noise LDO  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS737  Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS131A04 Download Download
DAC80004 Download
Download
INA188 Download Download
LM2664 Download Download
LM5118 Download Download
LM5170-Q1 Download -
LM6142 Download Download
Download Download
OPA2277 Download Download
Download Download
Download Download
OPA827 Download Download
Download Download
REF5025 Download Download
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REF5050 Download Download
Download Download
SN74LV1T00 Download
Download
SN74LV1T32 Download Download
Download Download
SN74LV4053A-Q1 Download Download
Download Download
SN74LVC1G04-Q1 Download Download
Download Download
THS4561 Download -
TLV07 Download Download
TM4C1294NCPDT Download Download
TPD4S012 Download Download
TPS709 Download
Download
TPS717 Download Download
Download Download
Download Download
TPS737 Download Download
Download Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 3980 19 Jun 2018 68
Design files (6)
Title Abstract Type Size (KB) Date Views TI Recommends
ZIP 1352 19 Jun 2018 11
ZIP 4178 19 Jun 2018 25
PDF 5830 19 Jun 2018 19
PDF 431 19 Jun 2018 12
PDF 215 19 Jun 2018 24
PDF 1255 19 Jun 2018 91
Related Tools & Software

Reference Designs  ( 4 )

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
LM5170 48V-12V Bidirectional Converter Evaluation Module  LM5170EVM-BIDIR  Evaluation Modules & Boards 
USB2ANY Interface Adaptor  USB2ANY  Evaluation Modules & Boards 

Software (1)

Name Part Number Software Type
Delta-Sigma ADC EvaluaTIon Software  DELTASIGMAEVAL-GUI  Software Libraries 

Models (1)

Title Category Type Size (KB) Date Views TI Recommends
TIDA-01040 Simulation Files TINA-TI Reference Design ZIP 170 KB 19 Jun 2018 4 views

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