Overview
The BQ7693001DBTR, part of the BQ769x0 family, is a robust analog front-end (AFE) device designed by Texas Instruments for comprehensive battery pack monitoring and protection. This device is tailored for high-power systems such as light electric vehicles, power tools, and uninterruptible power supplies. It supports up to 10-series cells or typical 36-V packs, making it versatile for various battery chemistries including Li-ion and Li-iron phosphate. The BQ76930 is engineered with low power consumption in mind, allowing sub-blocks within the IC to be enabled or disabled to control overall chip current, and features a SHIP mode for ultra-low power states.
Key Specifications
| Parameter | Description |
|---|---|
| Package | TSSOP (DBT) with 30 pins |
| Operating Temperature Range | -40°C to 85°C |
| Cell Support | Up to 10-series cells |
| Typical Pack Voltage | Up to 36 V |
| Supply Voltage Absolute Maximum | Up to 108 V |
| Output Voltage Regulator | 2.5 V or 3.3 V |
| Interface | I²C compatible with CRC option |
| Cell Balancing Current | 5 mA per cell |
| Thermistor Support | Directly supports up to three thermistors (103AT) |
Key Features
- A FE monitoring features with pure digital interface
- Internal ADC measures cell voltage, die temperature, and external thermistor
- A separate internal ADC measures pack current (coulomb counter)
- Hardware protection features including overcurrent in discharge (OCD), short circuit in discharge (SCD), overvoltage (OV), and undervoltage (UV)
- Integrated cell balancing FETs and charge/discharge low-side NCH FET drivers
- Alert interrupt to host microcontroller
- No EEPROM programming necessary
- Random cell connection tolerant
Applications
The BQ7693001DBTR is suitable for a variety of high-power applications, including:
- Light electric vehicles
- Power tools
- Uninterruptible power supplies (UPS)
- Other battery-powered systems requiring robust monitoring and protection
Q & A
- What is the BQ7693001DBTR used for? The BQ7693001DBTR is used for battery pack monitoring and protection in high-power systems.
- How many cells does the BQ76930 support? The BQ76930 supports up to 10-series cells.
- What is the typical pack voltage range for the BQ76930? The typical pack voltage range is up to 36 V.
- What interface does the BQ76930 use? The BQ76930 uses an I²C compatible interface with a CRC option.
- Does the BQ76930 require EEPROM programming? No, the BQ76930 does not require EEPROM programming.
- What are the key protection features of the BQ76930? The key protection features include overcurrent in discharge (OCD), short circuit in discharge (SCD), overvoltage (OV), and undervoltage (UV).
- How many thermistors can the BQ76930 support? The BQ76930 can directly support up to three thermistors (103AT).
- What is the cell balancing current per cell for the BQ76930? The cell balancing current per cell is 5 mA.
- What is the operating temperature range of the BQ76930? The operating temperature range is -40°C to 85°C.
- What types of battery chemistries can the BQ76930 manage? The BQ76930 can manage Li-ion, Li-iron phosphate, and other battery chemistries.
