| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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27,971 pcs
|
27971 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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8,519 pcs
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8519 pcs | On Request | 1 | On Request | On Request | 1527+ | On Request | On Request | |
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2,000 pcs
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2000 pcs | On Request | 1 | On Request | On Request | 16+ | On Request | On Request | |
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1,837 pcs
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1837 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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384 pcs
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384 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
100 pcs
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100 pcs | On Request | 1 | On Request | On Request | 22+ | On Request | On Request |
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| Battery Chemistry | |
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| Supplier Package |
The BQ27421YZFR-G1A from Texas Instruments is a system-side fuel gauge IC that provides accurate battery monitoring for single-cell Lithium-Ion batteries. It is designed to reside on the system board and supports both embedded and removable batteries.
This fuel gauge employs the patented Impedance Track™ algorithm, offering features such as remaining capacity (mAh), state of charge (%), and battery voltage (mV) reporting. It automatically adjusts for battery aging, self-discharge, temperature, and rate changes, providing reliable battery status. The device includes an integrated sense resistor with a typical value of 7 mΩ.
Key electrical characteristics include a 400kHz I2C serial interface for communication and an operating temperature range of -40°C to 85°C. The IC is powered directly from the battery and features an integrated low-dropout regulator (LDO).
Packaged in a compact 9-DSBGA (9-UFBGA), the BQ27421YZFR-G1A is suitable for space-constrained applications. It supports configurable SOC interrupts or battery low digital output warnings and can report internal temperature or receive host-reported temperature.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.04 | $1.04 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating temperature range is -40°C to 85°C.
It supports Lithium Ion battery chemistry.
It monitors a single series cell.
It uses an I2C interface.
The typical value of the integrated sense resistor is 7 mΩ.
The communication interface speed is 400kHz I2C.
