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BQ27421YZFR-G1A

C139621 Extended Part

Single-cell Li-ion battery fuel gauge monitoring IC, I2C, 2.45V~4.5V supply, 1 cell, -40°C~+85°C.

i2c fuel gaugebattery monitorli ion gaugei2c interfacesingle celllow voltage monitorbattery fuel gaugei2c battery monitor

Extended part — assembled from JLC's extended library, which adds a small one-time feeder fee per part number.

Footprint

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3D model

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Engineering notes

Capabilities

i2c: interface

Package And Footprint

Package / footprint name: DSBGA-9
Pin count: Unknown
EasyEDA symbol UUID: e43dab266f1d41268e4c3142692d9fdd
EasyEDA footprint UUID: 85aaef00a8a840e4b5b7db67f6998ff9
EasyEDA device UUID: 0d3d15458ab848b798617bae8b4ca2fe
EasyEDA library UUID: 0819f05c4eef4c71ace90d822a990e87

Power And Operating Modes

Supply rails: EasyEDA property: 2.45V~4.5V.

Datasheet And Links

Datasheet / product URL: https://www.ti.com/cn/lit/gpn/bq27421-g1
Product URL: https://www.ti.com/cn/lit/gpn/bq27421-g1

Selection Notes

Good for: reuse when package, electrical ratings, footprint, and assembly class match the project constraints
Known layout constraints: Verify package land pattern, decoupling requirements, thermal pad, RF keepouts, crystal routing, and boot straps from the datasheet.
Equivalent search hints: match category fuel-gauge, interfaces i2c, package DSBGA-9, and EasyEDA footprint UUID 85aaef00a8a840e4b5b7db67f6998ff9.

Design files & assets 13 files · click to expand

Datasheet or product page datasheet

Datasheet PDF (mirrored) datasheet pdf

EasyEDA 3D model easyeda 3d model

in EasyEDA

EasyEDA device easyeda device

in EasyEDA

DSBGA-9 easyeda footprint

in EasyEDA

EasyEDA library easyeda library

in EasyEDA

EasyEDA Pro device: C139621 easyeda pro device

EasyEDA Pro library (device+symbol+footprint): C139621 easyeda pro lib

EasyEDA symbol easyeda symbol

in EasyEDA

JLC/LCSC product image jlc image

JLC/LCSC product image jlc image

3D model (OBJ) model 3d obj

3D model (STEP) model 3d step