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BQ27505YZGT-J2

TIBQ27505YZGT-J2

Texas Instruments
Battery Battery Monitor IC Lithium Ion 12-DSBGA
Active8,000 in stock
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Overview

The BQ27505YZGT-J2 is a micro-power battery fuel gauge for single-cell Li-Ion battery packs. It utilizes Texas Instruments patented Impedance Track technology to provide accurate remaining battery capacity, state-of-charge, and time-to-empty predictions by modeling battery impedance and discharge curves.

Why Choose This Part

The device offers extremely low power consumption with a typical normal mode current of 0.114mA and a standby current of 4uA. Its 12-DSBGA package is optimized for space-constrained designs, measuring approximately 1.96mm by 2.43mm.

Applications

Handheld Terminals
Ensures accurate runtime predictions in portable industrial data collectors and barcode scanners.
Wearable Health Monitors
Provides precise state-of-charge data for compact medical devices where battery life is critical.
Smartphones and Tablets
Delivers high-resolution battery monitoring and aging compensation for consumer mobile devices.
Portable Media Players
Manages energy monitoring in small form-factor devices using high-density DSBGA packaging.

Key Specifications

Function Battery Monitor
Interface I2C
Mounting Type Surface Mount
Package / Case 12-UFBGA, DSBGA
Number of Cells 1
Battery Chemistry Lithium Ion
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 12-DSBGA

Getting Started

Evaluation requires the bq27505EVM evaluation module and the TI bqStudio software for configuration and calibration. Communication is handled via a standard I2C interface, requiring the host microcontroller to read the fuel gauge registers for battery parameters.

Also Consider

BQ27441-G1 TITexas Instruments - A simpler, ROM-based fuel gauge that requires minimal user configuration compared to flash-based models.
MAX17048 Analog Devices - An ultra-compact fuel gauge using the ModelGauge algorithm which does not require a sense resistor.
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