BQ27742-G1 Series
Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge
| Part | Fault Protection | Battery Chemistry | Supplier Device Package | Function | Interface | Number of Cells | Package / Case | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ27742YZFT-G1 | Over Current, Over/Under Voltage, Short Circuit | Lithium Ion | 15-DSBGA | Multi-Function Controller | HDQ, I2C | 1 | 15-UFBGA, DSBGA | 85 °C | -40 °C | Surface Mount |
Texas Instruments BQ27742YZFR-G1 | Over Current, Over/Under Voltage, Short Circuit | Lithium Ion | 15-DSBGA | Multi-Function Controller | HDQ, I2C | 1 | 15-UFBGA, DSBGA | 85 °C | -40 °C | Surface Mount |
Key Features
• Battery Fuel Gauge and Protector for Single-Cell Li-Ion ApplicationsMicrocontroller Peripheral Provides:Precision 16-Bit, High-Side Coulomb Counter with Low-Value Sense Resistor(5 mΩ to 20 mΩ)External and Internal Temperature Sensors for Battery Temperature ReportingLifetime and Current Data Logging64 Bytes of Non-Volatile Scratch Pad FlashSHA-1 Authentication CapabilityBattery Fuel Gauging Based on Patented Impedance Track™ TechnologyModels Battery Discharge Curve for Accurate Time-To-Empty PredictionsAutomatically Adjusts for Aging, Self-Discharge, and Temperature- and Rate-Induced Effects on BatteryIntegrated High-side NMOS Protection FET DriveHardware-based Safety and Protection:Overvoltage (OVP)Undervoltage (UVP)Overcurrent in Charge (OCC)Overcurrent in Discharge (OCD)Short-Circuit in Discharge (SCD)I2C and HDQ Interface Formats for Communication with Host SystemUltra-Compact, 15-Ball NanoFree™ DSBGABattery Fuel Gauge and Protector for Single-Cell Li-Ion ApplicationsMicrocontroller Peripheral Provides:Precision 16-Bit, High-Side Coulomb Counter with Low-Value Sense Resistor(5 mΩ to 20 mΩ)External and Internal Temperature Sensors for Battery Temperature ReportingLifetime and Current Data Logging64 Bytes of Non-Volatile Scratch Pad FlashSHA-1 Authentication CapabilityBattery Fuel Gauging Based on Patented Impedance Track™ TechnologyModels Battery Discharge Curve for Accurate Time-To-Empty PredictionsAutomatically Adjusts for Aging, Self-Discharge, and Temperature- and Rate-Induced Effects on BatteryIntegrated High-side NMOS Protection FET DriveHardware-based Safety and Protection:Overvoltage (OVP)Undervoltage (UVP)Overcurrent in Charge (OCC)Overcurrent in Discharge (OCD)Short-Circuit in Discharge (SCD)I2C and HDQ Interface Formats for Communication with Host SystemUltra-Compact, 15-Ball NanoFree™ DSBGA
Description
AI
The Texas Instruments bq27742-G1 is a fuel gauge for single-cell Li-Ion battery packs that uses patented Impedance Track™ technology to deliver rate-, temperature-, and aging-compensated predictions of remaining battery capacity and system runtime with highest accuracy. The device also includes a fully integrated high-side protector that eliminates the need for a separate Li-Ion protection circuit and provides a full suite of high-accuracy fault detections for overvoltage, undervoltage, overcurrent in charge, overcurrent in discharge, and short-circuit in discharge conditions. The hardware protection functions offer built-in data flash-based programmability, allowing simple reconfiguration of existing devices for varying end equipment needs.
The fuel gauge provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime to empty (minutes), voltage (mV), current (mA), and temperature (°C), as well as recording vital parameters throughout the lifetime of the battery. The device also supports interrupts to the host to indicate detection of a variety of important battery conditions to the system.
The DSBGA is a 15-ball package (2.78 mm × 1.96 mm) that is ideal for space-constrained applications.
The Texas Instruments bq27742-G1 is a fuel gauge for single-cell Li-Ion battery packs that uses patented Impedance Track™ technology to deliver rate-, temperature-, and aging-compensated predictions of remaining battery capacity and system runtime with highest accuracy. The device also includes a fully integrated high-side protector that eliminates the need for a separate Li-Ion protection circuit and provides a full suite of high-accuracy fault detections for overvoltage, undervoltage, overcurrent in charge, overcurrent in discharge, and short-circuit in discharge conditions. The hardware protection functions offer built-in data flash-based programmability, allowing simple reconfiguration of existing devices for varying end equipment needs.
The fuel gauge provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime to empty (minutes), voltage (mV), current (mA), and temperature (°C), as well as recording vital parameters throughout the lifetime of the battery. The device also supports interrupts to the host to indicate detection of a variety of important battery conditions to the system.
The DSBGA is a 15-ball package (2.78 mm × 1.96 mm) that is ideal for space-constrained applications.