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BQ27425YZFR-G1

TIBQ27425YZFR-G1

Texas Instruments
Battery Battery Monitor IC Lithium Cobalt Oxide 15-DSBGA
Active124,545 in stock
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Overview

The BQ27425YZFR-G1 is a single-cell fuel gauge based on Texas Instruments Proprietary Impedance Track technology, specifically tuned for Lithium Cobalt Oxide (LiCoO2) battery chemistries. It features an integrated sense resistor and an LDO to simplify system design and reduce PCB footprint in space-constrained portable applications.

Why Choose This Part

The device significantly reduces BOM cost and complexity by integrating the sense resistor and LDO directly into the IC. Its ultra-low power consumption, with a standby current of only 8 uA and sleep current of 23 uA, helps maximize system battery life during idle periods.

Applications

Mobile Handsets
Provides accurate remaining capacity and state-of-charge data for single-cell Li-ion smartphones.
Wearable Electronics
Ideal for ultra-compact devices due to the small 15-DSBGA package and integrated sense resistor.
Portable Medical Devices
Ensures reliable battery monitoring with high-resolution 15-bit ADC for voltage and current measurements.

Key Specifications

Function Battery Monitor
Interface I2C
Mounting Type Surface Mount
Package / Case 15-UFBGA, DSBGA
Number of Cells 1
Battery Chemistry Lithium Cobalt Oxide
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 15-DSBGA

Getting Started

Engineers can evaluate this IC using the BQ27425EVM evaluation module and the TI bqStudio software for configuration. Communication is handled via a standard I2C interface, allowing for easy integration with most low-power microcontrollers.

Also Consider

BQ27441-G1A TITexas Instruments - Features a similar integrated sense resistor but is designed for 4.2V Li-ion chemistries in a leaded SON package.
MAX17048 Maxim Integrated / Analog Devices - A simpler fuel gauge that does not require a sense resistor, though it may offer different accuracy profiles compared to Impedance Track.
BQ27421-G1A TITexas Instruments - A newer generation single-cell gauge in the same DSBGA package with optimized low-power performance.
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