BQ27520-G4 Series
System side Impedance Track™ fuel gauge with integrated LDO.
Manufacturer: Texas Instruments
Catalog
System side Impedance Track™ fuel gauge with integrated LDO.
| Part | Interface | Function | Number of Cells | Package / Case | Battery Chemistry | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Utilized IC / Part | Type | Primary Attributes | Embedded | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | I2C | Battery Monitor | 1 | 15-UFBGA DSBGA | Lithium Ion | Surface Mount | 85 °C | -40 °C | 15-DSBGA | |||||
Texas Instruments | I2C | Battery Monitor | 1 | 15-UFBGA DSBGA | Lithium Ion | Surface Mount | 85 °C | -40 °C | 15-DSBGA | |||||
 Texas Instruments | Battery Gauge | BQ27520 | Power Management | Li-Ion (1 Cell) | Board(s) Cable(s) | |||||||||
Texas Instruments | I2C | Battery Monitor | 1 | 15-UFBGA DSBGA | Lithium Ion | Surface Mount | 85 °C | -40 °C | 15-DSBGA | |||||
Texas Instruments | I2C | Battery Monitor | 1 | 15-UFBGA DSBGA | Lithium Ion | Surface Mount | 85 °C | -40 °C | 15-DSBGA | |||||
Texas Instruments | I2C | Battery Monitor | 1 | 15-UFBGA DSBGA | Lithium Ion | Surface Mount | 85 °C | -40 °C | 15-DSBGA |
Key Features
• Single-series cell Li-ion battery fuel gauge resides on system boardIntegrated 2.5 VDC LDOExternal low-value 10-mΩ sense resistorPatented Impedance Track™technologyAdjusts for battery aging, self-discharge, temperature, and rate changesReports remaining capacity, state-of-charge (SOC), and time-to-emptyOptional smoothing filterBattery state-of-health (aging) estimationSupports embedded or removable packs with up to 14500-mAhcapacityAccommodates pack swapping with twoseparate battery profilesMicrocontroller peripheral supports400-kHz I2C serial interface32 bytes of scratch-pad FLASH NVMBattery low digital output warningConfigurable SOC interruptsExternal thermistor, internal sensor, or host-reported temperature optionsTiny 15-pin, 2610 × 1956 µm, 0.5-mm pitch NanoFree™ (DSBGA) packageSingle-series cell Li-ion battery fuel gauge resides on system boardIntegrated 2.5 VDC LDOExternal low-value 10-mΩ sense resistorPatented Impedance Track™technologyAdjusts for battery aging, self-discharge, temperature, and rate changesReports remaining capacity, state-of-charge (SOC), and time-to-emptyOptional smoothing filterBattery state-of-health (aging) estimationSupports embedded or removable packs with up to 14500-mAhcapacityAccommodates pack swapping with twoseparate battery profilesMicrocontroller peripheral supports400-kHz I2C serial interface32 bytes of scratch-pad FLASH NVMBattery low digital output warningConfigurable SOC interruptsExternal thermistor, internal sensor, or host-reported temperature optionsTiny 15-pin, 2610 × 1956 µm, 0.5-mm pitch NanoFree™ (DSBGA) package
Description
AI
The Texas Instruments BQ27520-G4 system-side Li-ion 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.
The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (minimum), battery voltage (mV), temperature (°C), and state of health (%).
Battery fuel gauging requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit. The device uses a 15-ball NanoFree™ (DSBGA) package in the nominal dimensions of 2610 × 1956 µm with 0.5-mm lead pitch. It is ideal for space-constrained applications.
The Texas Instruments BQ27520-G4 system-side Li-ion 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.
The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (minimum), battery voltage (mV), temperature (°C), and state of health (%).
Battery fuel gauging requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit. The device uses a 15-ball NanoFree™ (DSBGA) package in the nominal dimensions of 2610 × 1956 µm with 0.5-mm lead pitch. It is ideal for space-constrained applications.