BQ27621-G1 Series
System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge
| Part | Interface | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Battery Chemistry | Supplier Device Package | Function | Number of Cells | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ27621YZFT-G1A | I2C | 85 °C | -40 °C | 9-UFBGA, DSBGA | Lithium Ion | 9-DSBGA | Battery Monitor | 1 | Surface Mount |
Key Features
• Single-Cell Li-Ion Battery Fuel GaugeResides on System BoardSupports Embedded or Removable BatteriesPowered Directly from Battery with IntegratedLDOEasy To Configure Fuel Gauging Based on theDynamic Voltage Correlation AlgorithmReports Remaining Capacity and State ofCharge (SOC) with Smoothing FilterAutomatically Adjusts for Self-Discharge,Temperature, and Rate ChangesMicrocontroller Peripheral Supports:400-kHz I2C Serial InterfaceConfigurable SOC Interrupt orBattery Low Digital Output WarningInternal Temperature Sensor orHost Reported TemperatureSupport 4.2-V, 4.3-V, and 4.35-V Chemistries9-pin 1.62 × 1.58 mm, 0.5 mm pitch YZF packageSingle-Cell Li-Ion Battery Fuel GaugeResides on System BoardSupports Embedded or Removable BatteriesPowered Directly from Battery with IntegratedLDOEasy To Configure Fuel Gauging Based on theDynamic Voltage Correlation AlgorithmReports Remaining Capacity and State ofCharge (SOC) with Smoothing FilterAutomatically Adjusts for Self-Discharge,Temperature, and Rate ChangesMicrocontroller Peripheral Supports:400-kHz I2C Serial InterfaceConfigurable SOC Interrupt orBattery Low Digital Output WarningInternal Temperature Sensor orHost Reported TemperatureSupport 4.2-V, 4.3-V, and 4.35-V Chemistries9-pin 1.62 × 1.58 mm, 0.5 mm pitch YZF package
Description
AI
The Texas Instruments bq27621-G1 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 bq27621-G1 uses the Dynamic Voltage Correlation algorithm for fuel gauging. This process eliminates the need for a sense resistor when calculating remaining battery capacity (mAh), state-of-charge (%), battery voltage (mV), and temperature (°C).
Battery fuel gauging with the bq27621-G1 requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-pin, 1.62 mm × 1.58 mm, 0.5 mm pitch YZF package is ideal for space-constrained applications.
The Texas Instruments bq27621-G1 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 bq27621-G1 uses the Dynamic Voltage Correlation algorithm for fuel gauging. This process eliminates the need for a sense resistor when calculating remaining battery capacity (mAh), state-of-charge (%), battery voltage (mV), and temperature (°C).
Battery fuel gauging with the bq27621-G1 requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-pin, 1.62 mm × 1.58 mm, 0.5 mm pitch YZF package is ideal for space-constrained applications.