BQ25155 evaluation module for 500-mA, 1-cell, linear charger with 10-nA IQ and power path


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The BQ25155EVM evaluation module (EVM) is an integrated battery charge management IC that integrates the most common functions for wearable devices: linear charger, regulated output, load switch, manual reset with timer, ADC, ship mode and advanced power path. The low quiescent current during operation and shutdown enables maximum battery life. The device supports charge currents from 1.25 mA to 500 mA. The input current limit, charge current, regulated PMID output, LDO output voltage and other parameters are programmable through the I²C interface. The device also has a multi-point ADC to measure different parameters on the charger and also includes an optional ADC input. The battery is charged using a standard Li-ion charge profile with three phases: precharge, constant current and constant voltage.

  • Configurable battery charger
  • Multi point ADC to measure seven channels
  • Advanced power path to power system through either battery or adapter
  • Programmable hard and soft reset
  • 0.5% accurate battery voltage regulation
  • Wake timers for push button
Battery charger ICs
BQ25155 500-mA 1-cell linear charger with 10-nA IQ, power path, regulated system voltage, 16-bit ADC and LDO
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Evaluate BQ25155 highly integrated linear battery charger for wearable and hearable applications

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BQ25155EVM — BQ25155 evaluation module for 500-mA, 1-cell, linear charger with 10-nA IQ and power path

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Type Title Date
* EVM User's guide BQ2515xEVM User's Guide (Rev. A) 13 Jun 2019
Certificate BQ25155EVM EU Declaration of Conformity (DoC) 01 Nov 2019
Application note Battery Discharge Implementation in Warm or Hot Temperatures 02 Jul 2019
Application note BQ2515x Setup Guide 18 Jun 2019
User guide Small Form Factor Design for BQ25150 24 Jul 2018

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