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BQ27421YZFR-G1B by: Texas Instruments

System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85

Part Details for BQ27421YZFR-G1B by Texas Instruments

Results Overview of BQ27421YZFR-G1B by Texas Instruments

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BQ27421YZFR-G1B Information

BQ27421YZFR-G1B by Texas Instruments is a Power Management Circuit.
Power Management Circuits are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for BQ27421YZFR-G1B

Part # Distributor Description Stock Price Buy
DISTI # 296-39937-1-ND
DigiKey IC BATT FUEL GAUGE LICO2 9DSBGA Min Qty: 1 Lead time: 18 Weeks Container: Tape & Reel (TR), Cut Tape (CT), Digi-Reel® 5535
In Stock
  • 1 $2.5000
  • 10 $1.8610
  • 25 $1.7000
  • 100 $1.5236
  • 250 $1.4394
  • 500 $1.3887
  • 1,000 $1.3470
  • 3,000 $1.2954
  • 6,000 $1.2701
$1.2701 / $2.5000 Buy Now
DISTI # 595-BQ27421YZFR-G1B
Mouser Electronics Battery Management Fuel Gauge w/ Intg S ense Resistor A 595-BQ27421YZFT-G1B RoHS: Compliant 1447
  • 1 $2.5000
  • 10 $1.8600
  • 25 $1.7000
  • 100 $1.5200
  • 250 $1.4400
  • 500 $1.3900
  • 1,000 $1.3400
  • 3,000 $1.2900
  • 6,000 $1.2700
$1.2700 / $2.5000 Buy Now
Bristol Electronics   2
RFQ
Quest Components POWER SUPPLY MANAGEMENT CIRCUIT, FIXED, 1 CHANNEL, PBGA9 1
  • 1 $4.5000
$4.5000 Buy Now
Ameya Holding Limited 94.3V CIM ID 40224
RFQ
LCSC Lithium Battery I2C 1 2A DSBGA-9 Battery Management RoHS 35
  • 1 $2.2539
  • 10 $1.8934
  • 30 $1.6663
  • 100 $1.4346
  • 500 $1.3303
  • 1,000 $1.2858
$1.2858 / $2.2539 Buy Now

US Tariff Estimator: BQ27421YZFR-G1B by Texas Instruments

Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.

BQ27421YZFR-G1B
Texas Instruments
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Part Details for BQ27421YZFR-G1B

BQ27421YZFR-G1B CAD Models

BQ27421YZFR-G1B Part Data Attributes

BQ27421YZFR-G1B Texas Instruments
Buy Now Datasheet
Compare Parts:
BQ27421YZFR-G1B Texas Instruments System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Package Description Vfbga, Bga9,3x3,20
Reach Compliance Code Compliant
ECCN Code EAR99
HTS Code 8542.39.00.60
Adjustable Threshold No
Analog IC - Other Type Battery Gauge
JESD-30 Code R-PBGA-B9
JESD-609 Code e1
Length 1.62 Mm
Moisture Sensitivity Level 1
Number of Channels 1
Number of Functions 1
Number of Terminals 9
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Package Body Material Plastic/Epoxy
Package Code VFBGA
Package Equivalence Code BGA9,3X3,20
Package Shape Rectangular
Package Style Grid Array, Very Thin Profile, Fine Pitch
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 0.625 Mm
Supply Voltage-Max (Vsup) 4.5 V
Supply Voltage-Min (Vsup) 2.45 V
Supply Voltage-Nom (Vsup) 3.6 V
Surface Mount Yes
Temperature Grade Industrial
Terminal Finish Tin/Silver/Copper (Sn/Ag/Cu)
Terminal Form Ball
Terminal Pitch 0.5 Mm
Terminal Position Bottom
Time@Peak Reflow Temperature-Max (s) 30
Width 1.58 Mm

Alternate Parts for BQ27421YZFR-G1B

This table gives cross-reference parts and alternative options found for BQ27421YZFR-G1B. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BQ27421YZFR-G1B, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
BQ27421YZFR-G1D Texas Instruments $0.5514 System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85 BQ27421YZFR-G1B vs BQ27421YZFR-G1D
BQ27421YZFT-G1D Texas Instruments $1.0657 System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85 BQ27421YZFR-G1B vs BQ27421YZFT-G1D
BQ27421YZFR-G1A Texas Instruments $1.1769 System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85 BQ27421YZFR-G1B vs BQ27421YZFR-G1A
BQ27421YZFT-G1B Texas Instruments $1.4049 System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85 BQ27421YZFR-G1B vs BQ27421YZFT-G1B
BQ27421YZFT-G1A Texas Instruments $1.4049 System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge 9-DSBGA -40 to 85 BQ27421YZFR-G1B vs BQ27421YZFT-G1A
ADM6316AW25ARJZ-R7 Analog Devices Inc Check for Price 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN BQ27421YZFR-G1B vs ADM6316AW25ARJZ-R7
equivalents icon

BQ27421YZFR-G1B Related Parts

BQ27421YZFR-G1B Frequently Asked Questions (FAQ)

  • Texas Instruments provides a recommended PCB layout in the application note SLUA533, which includes guidelines for component placement, routing, and thermal management to ensure accurate fuel gauging.

  • The BQ27421YZFR-G1B requires calibration to ensure accurate fuel gauging. Calibration involves learning the battery's characteristics, such as capacity and internal resistance. The device provides a calibration mode, and the calibration process is described in the datasheet and application notes.

  • Temperature affects the accuracy of fuel gauging. The BQ27421YZFR-G1B has a built-in temperature sensor, and the device compensates for temperature effects. However, it's essential to follow the recommended PCB layout and thermal management guidelines to minimize temperature-related errors.

  • The BQ27421YZFR-G1B is primarily designed for Li-ion batteries, but it can be used with other battery chemistries with some modifications. However, the device's accuracy and performance may vary depending on the battery chemistry and characteristics.

  • The BQ27421YZFR-G1B has built-in algorithms to adapt to battery aging and capacity loss over time. The device continuously monitors the battery's state of charge, voltage, and temperature to adjust its fuel gauging calculations. However, it's essential to perform periodic calibration to ensure accurate fuel gauging.

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