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BQ27421YZFR-G1B +BOM

Fuel level monitor with built-in resistance sensor

Manufacturer:

Texas Instruments
Mfr.Part #:

BQ27421YZFR-G1B
Datasheet:

BQ27421YZFR-G1B Datasheet (PDF)
Cell Chemistry:

Li-Ion/Li-Polymer
Number Of Series Cells:

Single Cell
Communication Interface:

I2C
Battery Capacity (min) (mAh):

100
EDA/CAD Models:

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BQ27421YZFR-G1B General Description

Texas Instruments' BQ27421YZFR-G1B stands out as a superior fuel gauge IC, with its cutting-edge features and seamless integration capabilities. Tailored for single lithium-ion or lithium polymer cell battery packs, this IC offers advanced fuel gauging functions, battery health monitoring, and SHA-1 authentication for added security, making it an ideal choice for battery management in portable and wearable devices. Its small, lead-free package further adds to its appeal, providing a compact and convenient solution for efficient battery management

Key Features

Fuel gauge IC for single-cell Li-ion batteries

Integrated impedance track algorithm for accurate capacity estimation

Provides remaining capacity, state of charge, and voltage measurements

Supports accurate battery lifetime calculation

Ideal for portable electronics and power banks applications

Application

Extend battery lifespan
Real-time battery data
Efficient energy management

Specifications

Cell chemistry	Li-Ion/Li-Polymer	Number of series cells	Single Cell
Communication interface	I2C	Battery capacity (min) (mAh)	100
Battery capacity (max) (mAh)	8000	Implementation	System
External capacity indication	None	Features	Impedance Track™ algorithm, Integrated Sense Resistor
Operating temperature range (°C)	-40 to 85	Rating	Catalog