BQ27421YZFT-G1D The Texas Instruments BQ27421YZFT-G1D is a system-side fuel gauge IC designed for single-cell Li-Ion batteries. It utilizes the Impedance Track™ algorithm for accurate state-of-charge monitoring.
Mfr Part #:

BQ27421YZFT-G1D

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ27421YZFT-G1D is a system-side fuel gauge IC designed for single-cell Li-Ion batteries. It utilizes the Impedance Track™ algorithm for accurate state-of-charge monitoring.
Total Stock: 600 pcs
$ Price Range: $1.25

BQ27421YZFT-G1D Available from 1 distributor

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BQ27421YZFT-G1D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Features
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package

BQ27421YZFT-G1D Description

Short technical summary and product information.

The BQ27421YZFT-G1D from Texas Instruments is a system-side fuel gauge IC specifically designed for single-cell Lithium-Ion and Li-Polymer batteries. It offers a wide battery capacity range from 100 mAh to 8000 mAh, making it versatile for various applications.

 

This IC features the patented Impedance Track™ algorithm, which provides accurate reporting of remaining capacity and state-of-charge (SOC). It automatically adjusts for battery aging, self-discharge, temperature, and rate changes, ensuring reliable performance. The device communicates via an I2C interface and includes an integrated sense resistor.

 

Packaged in a compact 9-DSBGA (9-UFBGA) format, the BQ27421YZFT-G1D is designed for surface mounting. It operates within a temperature range of -40°C to 85°C, suitable for demanding environments. This fuel gauge is ideal for embedded systems requiring precise battery monitoring.

BQ27421YZFT-G1D Quick Information

Product Type: Fuel Gauge IC
Series: BQ27421
Canonical Name: BQ27421YZFT-G1D System-Side Impedance Track Fuel Gauge
Subcategory: Battery Fuel Gauges

BQ27421YZFT-G1D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ27421YZFT-G1D Estimated Pricing

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1+ $1.25 $1.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ27421YZFT-G1D Features

  • System-side fuel gauge for single-cell Li-Ion.
  • Impedance Track™ algorithm for accurate SOC.
  • Supports 100-8000 mAh battery capacity.
  • I2C communication interface.
  • Compact 9-DSBGA surface mount package.

BQ27421YZFT-G1D Applications

  • Accurate battery monitoring in portable devices.
  • Power management for embedded systems.
  • Battery state-of-health estimation.
  • Low-power device battery tracking.

BQ27421YZFT-G1D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the cell chemistry supported by the BQ27421YZFT-G1D?

The BQ27421YZFT-G1D supports Li-Ion/Li-Polymer cell chemistry.

How many series cells does the BQ27421YZFT-G1D support?

It supports a single cell.

What communication interface does the BQ27421YZFT-G1D use?

The communication interface is I2C.

What is the minimum battery capacity supported?

The minimum supported battery capacity is 100 mAh.

What is the maximum battery capacity supported?

The maximum supported battery capacity is 8000 mAh.

What is the operating temperature range for this fuel gauge IC?

The operating temperature range is -40°C to 85°C.

What type of package is the BQ27421YZFT-G1D in?

It comes in a 9-DSBGA (9-UFBGA, DSBGA) package.

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