BQ27421YZFT-G1B Part Information

Details for BQ27421YZFT-G1B by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Battery Management

Part Description

The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell LiIon batteries. The device requires very little user configuration and system microcontroller firmware development. The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV). Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.

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Part Features

  • Easy-to-Configure Fuel Gauging Based on Patented Impedance Tracku2122 Technology u2013 Reports Remaining Capacity and State-of- Charge (SOC) with Smoothing Filter u2013 Automatically Adjusts for Battery Aging, Self- Discharge, Temperature, and Rate Changes u2013 Battery State-of-Health (Aging) Estimation
  • Microcontroller Peripheral Supports:
  • Single-Cell Li-Ion Battery Fuel Gauge u2013 Resides on System Board u2013 Supports Embedded or Removable Batteries u2013 Powered Directly from Battery with Integrated LDO u2013 Low-Value Integrated Sense Resistor (7 mu2126, Typical)

Part Specifications

Battery Management Function Fuel Gauge Status Monitor
Battery Type Li-Ion LiMn2PO4
Supply Voltage Min 2.45V
Supply Voltage Max 4.5V
Battery IC Case Style DSBGA
No. of Pins 9Pins
IC Interface Type I2C
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge | Texas Instruments

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What category does BQ27421YZFT-G1B fall under?

The BQ27421YZFT-G1B is listed under Electronic & Electrical Components > Semiconductors - ICs > Battery Management.

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You can view similar parts to BQ27421YZFT-G1B when available in the Battery Management range under the specifications section at the bottom of the details page.

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Is the BQ27421YZFT-G1B RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

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