BQ25122EVM

700nA Low Iq Highly Integrated Battery Charge Management Evaluation Module for Wearables & Hearables

BQ25122EVM

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Overview

The bq25122EVM evaluation module is a highly integrated battery charge management IC that integrates the most common functions for wearables devices: Linear charger, regulated output, load switch, manual reset with timer, and battery voltage monitor. The low quiescent current during operation and shutdown enables amaximum battery life. The device supports charge currents from 5 mA to 300 mA. The input current limit, charge current, PWM output voltage, LDO output voltage, and other parameters are programmable through the I2C interface. The battery is charged using a standard Li-Ion charge profile with three phases: precharge, constant current and constant voltage

Features

Configurable 300mA buck regulator (1.8V default)
700nA typical IQ with PWM enabled (no load)
Up to 300mA charge current for fast charging
0.5% accurate battery voltage regulation (configurable from 3.6V to 4.65V in 10mV steps)
Configurable termination current down to 500uA

u-USB cable is included

Battery charger ICs

BQ25122 — 300-mA linear battery charger with Power Path, integrated LDO and buck converter 1.2V default output

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Explore packages of hardware, software and documentation

Evaluate BQ25122 highly integrated linear battery charger for wearable and hearable applications

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Start evaluating with the required hardware, communication interface and software that you will need to evaluate the BQ25122EVM.

Evaluation board

BQ25122EVM — BQ25122EVM

Required

Why do I need this?

This board allows you to start evaluating the BQ25122.

Not available on TI.com

Interface adapter

EV2400 — USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module

Required

Why do I need this?

This is a communication interface board that you will need to configure the BQ25122 registers from a windows PC.

Not available on TI.com

Application software & framework

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Required

Why do I need this?

This GUI software allows you to set the registers for your device.

Supported products & hardware

Download options

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

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Latest version

Version: 1.3.124

Release date: 03 Nov 2023

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GASGAUGECHEM-SW Latest chemistry database for Battery Management Studio — 0 K

Download Chemistry zip file for bqStudio & use bqStudio Help menu to import the latest chemistries.

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BatteryManagementStudio-1.3.124_Build1-windows-installer.exe — 198129 K

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Hardware development

MKST-3P-ALT-EV2300 — MKS Technology alternative for EV2300 communications transceiver

Documentation

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Documentation Overview

Battery Management Studio (bqStudio) Documentation

Release Infomation

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including support for real-time watching, graphing, and logging, an easy interface to send commands, direct low-level communication and I/O, as well as automated and guided support for configuration, calibration, performing a learning cycle, and generating useful files for taking the device to production.

This version of bqStudio supports the latest chemistry updates.
Operating systems: Windows 7 (64 bit), Windows 8 (64 bit), Windows 10 (64 bit)

Older products such as bq20xxx and bq30xxx are not supported in bqStudio. Download the specific evaluation software from the appropriate product page.

Requires: EV2400 or MKST-3P-ALT-EV2300

What's new

See Release notes

Documentation & related resources

EVM User's guide

bq25120AEVM and bq25122EVM Evaluation Modules

Design tools & simulation

BQ25122 Setup Guide Tool

HARDWARE AND SOFTWARE PACKAGE

Evaluate BQ25122 highly integrated linear battery charger for wearable and hearable applications

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Evaluation board

BQ25122EVM — BQ25122EVM

Not available on TI.com

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

Technical documentation

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	Type	Title		Date
*	EVM User's guide	bq25120AEVM and bq25122EVM Evaluation Modules (Rev. A)		04 Dec 2017
	Certificate	BQ25122EVM EU Declaration of Conformity (DoC)		02 Jan 2019

Related design resources

Hardware development

EVALUATION BOARD

BQ25120AEVM — 700nA Low Iq Highly Integrated Battery Charge Management Evaluation Module for Wearables & Hearables

INTERFACE ADAPTER

EV2400 — USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module

BQ25122EVM

700nA Low Iq Highly Integrated Battery Charge Management Evaluation Module for Wearables & Hearables

BQ25122EVM

Overview

Features

Battery charger ICs

Order & start development

Explore packages of hardware, software and documentation

Evaluate BQ25122 highly integrated linear battery charger for wearable and hearable applications

BQ25122EVM — BQ25122EVM

EV2400 — USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Products

Battery monitors & balancers

Battery charger ICs

Battery fuel gauges

Hardware development

Documentation

Release Infomation

What's new

Documentation & related resources

Evaluate BQ25122 highly integrated linear battery charger for wearable and hearable applications

Order this hardware only

BQ25122EVM — BQ25122EVM

Technical documentation

Related design resources

Hardware development

EVALUATION BOARD

INTERFACE ADAPTER

Support & training

TI E2E™ forums with technical support from TI engineers

Video series

Videos

Download options

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Products

Battery monitors & balancers

Battery charger ICs

Battery fuel gauges

Hardware development

Documentation

Release Infomation

What's new

Supported products & hardware

Products

Battery monitors & balancers

Battery charger ICs

Battery fuel gauges

Hardware development