Overview
The BQ27510DRZR-G3 is a system-side Impedance-Track fuel gauge IC designed by Texas Instruments. This component is specifically tailored for battery management in lithium-ion (Li-ion) and lithium-polymer (Li-Pol) batteries. It offers advanced features such as impedance tracking, which provides accurate battery capacity and state of charge (SOC) measurements. The device is part of the bq27510 family and includes significant improvements over its predecessors, such as enhanced accuracy under various load conditions and improved calibration processes.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | BQ27510DRZR-G3 |
| Package / Case | 12-VFDFN Exposed Pad (SON-12) |
| Operating Supply Voltage | 2.7 V to 5.5 V |
| Output Current | 250 mA |
| Output Voltage | 2.5 V |
| Battery Chemistry | Lithium-Ion (Li-ion), Lithium-Polymer (Li-Pol) |
| Number of Cells | 1 |
| Interface | I2C |
| Operating Temperature | -40°C to 85°C (TA) |
Key Features
- Impedance Tracking: Accurately measures battery capacity and state of charge using impedance tracking algorithms.
- User-Programmable Data Flash: Provides 32 bytes of user-programmable data flash memory.
- Enhanced Accuracy: Features such as SOC Smoothing, Fast Resistance Scaling, and Voltage Consistency improve accuracy under various load conditions.
- Improved Calibration: Calibration is restructured to be performed by external PC software, freeing up firmware code space for other algorithm improvements.
- Overcharge Handling: Improved handling of overcharge conditions with updated DODatEOC calculations after charge termination.
- Flexible SOC_INT Configuration: Allows individual SOC_INT trigger events to be enabled or disabled with more flexibility.
Applications
The BQ27510DRZR-G3 is suitable for a variety of battery-powered devices, including:
- Portable electronics such as smartphones, tablets, and laptops.
- Industrial battery management systems.
- Automotive and electric vehicle battery monitoring systems.
- Medical devices and equipment.
- Consumer electronics requiring precise battery state of charge monitoring.
Q & A
- What is the BQ27510DRZR-G3 used for?
The BQ27510DRZR-G3 is a system-side Impedance-Track fuel gauge IC used for battery management in lithium-ion and lithium-polymer batteries.
- What is the operating supply voltage range of the BQ27510DRZR-G3?
The operating supply voltage range is 2.7 V to 5.5 V.
- What interface does the BQ27510DRZR-G3 use?
The BQ27510DRZR-G3 uses an I2C interface.
- What is the operating temperature range of the BQ27510DRZR-G3?
The operating temperature range is -40°C to 85°C (TA).
- Does the BQ27510DRZR-G3 support user-programmable data?
Yes, it provides 32 bytes of user-programmable data flash memory.
- What are some of the key features that improve accuracy in the BQ27510DRZR-G3?
Key features include SOC Smoothing, Fast Resistance Scaling, and Voltage Consistency.
- How has the calibration process been improved in the BQ27510DRZR-G3?
The calibration process is now performed by external PC software, freeing up firmware code space for other algorithm improvements.
- What is the significance of the Des Energy Scale feature in the BQ27510DRZR-G3?
The Des Energy Scale feature supports larger battery capacities and changes the units of Design Energy and Avg Power Last Run registers to mWh or cWh.
- Can the BQ27510DRZR-G3 handle overcharge conditions effectively?
Yes, it has improved overcharge handling with updated DODatEOC calculations after charge termination.
- Is the BQ27510DRZR-G3 compatible with various development tools?
Yes, it is compatible with tools like Eagle, Altium, KiCad, and others for symbol and footprint integration.
