BQ27421YZFR-G1A

Identity

• Manufacturer: TI(德州仪器)
• Model / MPN: BQ27421YZFR-G1A
• LCSC: C139621
• Category: fuel-gauge
• Description: Single-cell Li-ion battery fuel gauge monitoring IC, I2C, 2.45V4.5V supply, 1 cell, -40°C+85°C.
• Source: EasyEDA/JLC verified common component seed
• Project designators: Not project-specific
• Project quantity per board: Not project-specific

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

• Active current: Not characterized in seed; extract active current from datasheet tables.
• Sleep / standby current: Not characterized in seed; extract sleep/standby current from datasheet tables.
• Supply rails: EasyEDA property: 2.45V~4.5V.
• Notes: Seed values are search hints only. Verify power modes, rail limits, startup requirements, and reference design passives from the datasheet.

Procurement Classification

• JLC class: Extended Part
• JLC note / assembly basis: EasyEDA/JLC verified common battery management, USB-C power, and power-path seed
• Assembly status: jlc_extended
• Price-break table: Not captured in seed. Store only timestamped price-break snapshots when intentionally refreshed.
• Live stock: intentionally not stored as durable selection data; refresh externally before ordering.

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
• Datasheet-derived notes: Not extracted yet. Use PDF extraction to fill power modes, absolute maximums, pin functions, package variants, and reference design requirements.

Selection Notes

• Good for: reuse when package, electrical ratings, footprint, and assembly class match the project constraints
• Avoid when: Not captured yet.
• 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.

Search Keywords

seed:common-battery-usb-power, source:easyeda-bridge, iot, common-pcb, battery-power, usb-c-power, bq27421, impedance-track, single-cell, system-side, i2c, fuel-gauge, dsbga-9, jlc-extended, jlc_extended, jlc-note:easyeda-jlc-verified-common-battery-management-usb-c-power-and-power-path-seed, battery