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BQ25155EVM

TIBQ25155EVM

Texas Instruments
BQ25155 - Battery Charger Power Management Evaluation Board
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Overview

The BQ25155EVM is an evaluation module for the BQ25155, a highly integrated 500mA linear battery charger IC designed for small portable devices. It features an integrated ADC for system monitoring, a programmable LDO/Load Switch, and I2C control for precise management of the charging profile and power path. The board provides a platform to test high-accuracy battery regulation and ultra-low power modes, including a 10nA ship mode.

Why Choose This Part

The board demonstrates 0.5 percent accuracy in battery regulation voltage and allows for highly granular configuration of thermal charging profiles. It streamlines development by integrating power path management, a 12-bit ADC, and a configurable load switch into a single evaluation platform.

Applications

Wearable Devices
Ideal for smartwatches and fitness trackers requiring small form factor and precise 0.5mA termination current.
IoT Sensor Nodes
Utilizes the 10nA ship mode to maintain battery health during long periods of shelf life or storage.
Medical Portables
Leverages the integrated ADC to monitor thermistors and battery voltage for safety-critical monitoring.
Hearables
Provides a 150mA LDO to power low-voltage rails in wireless earbuds or headsets.

Key Specifications

Type Power Management
Contents Board(s)
Embedded No
Function Battery Charger
Utilized IC / Part BQ25155
Secondary Attributes On-Board LEDs, Test Points

Getting Started

To begin evaluation, connect a 5V input source to the J1 header and a single-cell Li-Ion battery to the J2 header. Use an I2C controller, such as the TI USB2ANY interface, to communicate with the BQ25155 through the onboard headers and configure registers via the GUI software.

Also Consider

BQ25120AEVM TITexas Instruments - Consider this if your application requires an integrated buck converter instead of a linear LDO for higher system efficiency.

Categories

Power Management > Battery Management