Datasheet Details
| Part number | BQ27520-G4 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.71 MB |
| Description | System-Side Impedance Track Fuel Gauge |
| Datasheet | BQ27520-G4-etcTI.pdf |
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Overview: BQ27520-G4 SLUSB20C – NOVEMBER 2012 – REVISED NOVEMBER 2021 BQ27520-G4 System-Side Impedance Track™ Fuel Gauge With Integrated LDO.
| Part number | BQ27520-G4 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.71 MB |
| Description | System-Side Impedance Track Fuel Gauge |
| Datasheet | BQ27520-G4-etcTI.pdf |
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• Single-series cell Li-ion battery fuel gauge resides on system board – Integrated 2.5 VDC LDO – External low-value 10-mΩ sense resistor • Patented Impedance Track™ technology – Adjusts for battery aging, self-discharge, temperature, and rate changes – Reports remaining capacity, state-of-charge (SOC), and time-to-empty – Optional smoothing filter – Battery state-of-health (aging) estimation – Supports embedded or removable packs with up to 14500-mAh capacity – Accommodates pack swapping with two separate battery profiles • Microcontroller peripheral supports – 400-kHz I2C serial interface – 32 bytes of scratch-pad FLASH NVM – Battery low digital output warning – Configurable SOC interrupts – External thermistor, internal sensor, or host- reported temperature options • Tiny 15-pin, 2610 × 1956 µm, 0.5-mm pitch NanoFree™ (DSBGA) package 2 Applications The Texas Instruments BQ27520-G4 system-side Liion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-ion battery packs.
The device requires little system microcontroller firmware development.
The fuel gauge resides on the main board of the system and manages an embedded battery (non-removable) or a removable battery pack.
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