BQ25120AEVM

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

BQ25120AEVM

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Overview

The bq25120AEVM 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 500µA

µ-USB cable

Battery charger ICs
BQ25120A 300-mA linear battery charger with Power Path, integrated LDO and buck converter 1.8V default output BQ25125 Low IQ highly integrated battery charge management solution for wearables and IoT
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Evaluate BQ25120A highly integrated linear battery charger for wearable and hearable applications

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Evaluation board

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

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Technical documentation

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Type Title Date
* User guide bq25120AEVM and bq25122EVM Evaluation Modules (Rev. A) Dec. 04, 2017
More literature BQ25120AEVM EU Declaration of Conformity (DoC) Jan. 02, 2019

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