BQ27421YZFR-G1B
ActiveSYSTEM-SIDE(TM) FUEL GAUGE WITH INTEGRATED SENSE RESISTOR | BATTERY GAS GAUGE
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BQ27421YZFR-G1B
ActiveSYSTEM-SIDE(TM) FUEL GAUGE WITH INTEGRATED SENSE RESISTOR | BATTERY GAS GAUGE
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ27421YZFR-G1B |
|---|---|
| Battery Chemistry | Lithium Ion |
| Function | Battery Monitor |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | DSBGA, 9-UFBGA |
| Supplier Device Package | 9-DSBGA |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.45 | |
| 10 | $ 2.20 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.77 | |||
| 250 | $ 1.66 | |||
| 500 | $ 1.45 | |||
| 1000 | $ 1.20 | |||
| Digi-Reel® | 1 | $ 2.45 | ||
| 10 | $ 2.20 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.77 | |||
| 250 | $ 1.66 | |||
| 500 | $ 1.45 | |||
| 1000 | $ 1.20 | |||
| Tape & Reel (TR) | 3000 | $ 1.12 | ||
| 6000 | $ 1.08 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.84 | |
| 100 | $ 1.52 | |||
| 250 | $ 1.09 | |||
| 1000 | $ 0.82 | |||
Description
General part information
BQ27421-G1 Series
The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.
The bq27421-G1 fuel gauge uses the patented Impedance TrackTMalgorithm 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.
Documents
Technical documentation and resources
