Overview
The BQ7693000DBTR is a robust analog front-end (AFE) device from Texas Instruments, designed as part of a complete pack monitoring and protection solution for high-power systems. This IC is particularly suited for applications such as light electric vehicles, power tools, and uninterruptible power supplies. It supports the management and monitoring of multi-chemistry battery packs, including Li-ion and Li-iron phosphate batteries, with up to 10 series cells or typical 36-V packs.
Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | BQ7693000DBTR |
| Package Type | TSSOP (DBT) - 30 pins |
| Operating Temperature Range | -40°C to 85°C |
| Number of Series Cells | Up to 10 |
| Communication Interface | I2C (with CRC option) |
| Typical Operating Current | 40 μA |
| Vin (Max) | 50 V |
| Supply Voltage Absolute Maximum | Up to 108 V |
| Protection Features | Overcurrent in Discharge (OCD), Overvoltage (OV), Short Circuit in Discharge (SCD), Undervoltage (UV) |
| Special Features | Cell Balancing, Coulomb Counter, Integrated ADC, LDO, Low-Side NCH CHG/DSG FET Drive |
Key Features
- AFE Monitoring Features: Internal ADC measures cell voltage, die temperature, and external thermistor. A separate ADC measures pack current (coulomb counter).
- Pure Digital Interface: Simple I2C compatible interface with CRC option.
- Hardware Protection Features: Overcurrent in Discharge (OCD), Short Circuit in Discharge (SCD), Overvoltage (OV), Undervoltage (UV), and secondary protector fault detection.
- Integrated Cell Balancing FETs: And charge, discharge low-side NCH FET drivers.
- Alert Interrupt to Host Microcontroller: For critical events.
- Output Voltage Regulator: 2.5-V or 3.3-V output voltage regulator.
- No EEPROM Programming Necessary: Simplifies the setup process.
- Random Cell Connection Tolerant: Ensures flexibility in battery pack configuration).
Applications
The BQ7693000DBTR is suitable for a wide range of battery-powered applications, including:
- Light electric vehicles
- Power tools
- Uninterruptible power supplies
- Portable electronics
- Other battery-powered devices requiring multi-chemistry battery management).
Q & A
- What is the primary function of the BQ7693000DBTR?
The BQ7693000DBTR is a battery monitor IC designed to manage and monitor multi-chemistry battery packs, providing comprehensive fault protection and monitoring features).
- What types of battery chemistries does the BQ7693000DBTR support?
The IC supports a variety of battery chemistries, including Li-ion and Li-iron phosphate batteries).
- What is the maximum number of series cells the BQ7693000DBTR can handle?
The BQ7693000DBTR can handle up to 10 series cells).
- What communication interface does the BQ7693000DBTR use?
The BQ7693000DBTR uses an I2C compatible interface with a CRC option).
- What are the key protection features of the BQ7693000DBTR?
The IC includes protection features such as overcurrent in discharge (OCD), overvoltage (OV), short circuit in discharge (SCD), and undervoltage (UV)).
- Does the BQ7693000DBTR require EEPROM programming?
No, the BQ7693000DBTR does not require EEPROM programming).
- What is the operating temperature range of the BQ7693000DBTR?
The operating temperature range is -40°C to 85°C).
- What package type is the BQ7693000DBTR available in?
The BQ7693000DBTR is available in a 30-TSSOP (DBT) package).
- Is the BQ7693000DBTR RoHS compliant?
Yes, the BQ7693000DBTR is RoHS compliant).
- What is the typical operating current of the BQ7693000DBTR?
The typical operating current is 40 μA).
