BQ27Z561 1S-cell programmable battery manager Evaluation module


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This evaluation module (EVM) is a complete evaluation system for the bq27z561 battery management system. The EVM includes bq27z561  and bq2980  circuit modules and a link to Windows® based PC software. The circuit modules includes bq27z561 and bq2980 integrated circuits (ICs), and all other onboard components necessary to monitor and predict capacity, monitor critical parameters, protect the cells from overcharge, over-discharge, short-circuit, and over-current in 1-series cell Li-Ion or Li-Polymer battery packs. The EVM includes an on board EV2400 for connection to PC, where the user can read the bq27z561 data registers, program the chipset for different pack configurations, log cycling data for further evaluation, and evaluate the overall functionality of the solution under different charge and discharge conditions using I2C communication protocol through bqStudio software GUI.

  • Easy to use impedance track gas gauge
  • Accurate cell current, temperature and voltage monitoring
  • Over-voltage, under-voltage, over-current, over-temperature and under-temperature protection
  • 1-mOhm sense resistor
  • On-board EV2400
  • On-board dual programmable chargers

  • BQ27Z561EVM-011 evaluation module only
Not included
  • Battery cell
  • Cables

Battery fuel gauges
BQ27Z561 Impedance Track™ integrated circuit gas gauge solution for 1-series BQ27Z561-R1 Impedance Track™ battery gas gauge solution for 1-series cell Li-ion battery packs BQ27Z561-R2 Impedance track battery gas gauge solution for 1-series cell li-ion battery packs


Battery charger ICs
BQ25890 I2C 1cell 5A buck battery charger Maxcharge™ tech for high input with D+/D- BQ25892 I2C 1cell 5A buck battery charger with NVDC Power Path and PSEL


Battery protectors
BQ2980 High-side protector for single-cell li-ion and li-polymer batteries


Charge pumps (inductorless)
LM2665 1.8-V to 5.5-VIN switched capacitor voltage doubler


ESD protection & TVS surge diodes
TPD1E10B06 12-pF, ±5.5V, ±30-kV ESD protection diode with 6-A 8/20-uS surge in 0402 Package


Linear regulators (LDO)
TPS763 150-mA, 10-V, low-dropout voltage regulator with enable

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Evaluation board

BQ27Z561EVM-011 – BQ27Z561 1S-Cell Programmable Battery Manager Evaluation Module

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* User guide bq27z561EVM-011 Single-Cell Impedance Track™ Technology Jun. 08, 2018
More literature BQ27Z561EVM-011 EU Declaration of Conformity (DoC) Jan. 02, 2019

Related design resources

Software development

BQSTUDIO Battery Management Studio (bqStudio) Software

Support & training

TI E2E™ forums with technical support from TI engineers

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