BQ7693003 Series
6 to 10-Series Cell Li-Ion and Li-Phosphate Battery Monitor (bq76940 Family)
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
6 to 10-Series Cell Li-Ion and Li-Phosphate Battery Monitor (bq76940 Family)
| Part | Number of Cells [Min] [custom] | Number of Cells [Max] [custom] | Operating Temperature [Max] | Operating Temperature [Min] | Fault Protection | Function | Battery Chemistry | Package / Case | Mounting Type | Supplier Device Package | Interface |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ7693003DBT | 6 | 10 | 85 °C | -40 °C | Over Current, Over/Under Voltage, Short Circuit | Battery Monitor | Multi-Chemistry | 30-TFSOP | Surface Mount | 30-TSSOP | I2C |
Texas Instruments BQ7693003DBTR | 6 | 10 | 85 °C | -40 °C | Over Current, Over/Under Voltage, Short Circuit | Battery Monitor | Multi-Chemistry | 30-TFSOP | Surface Mount | 30-TSSOP | I2C |
Key Features
• AFE monitoring featuresPure digital interfaceInternal ADC measures cell voltage, die temperature, and external thermistorA separate, internal ADC measures pack current (coulomb counter)Directly supports up to three thermistors (103AT)Hardware protection featuresOvercurrent in Discharge (OCD)Short Circuit in Discharge (SCD)Overvoltage (OV)Undervoltage (UV)Secondary protector fault detectionAdditional featuresIntegrated cell balancing FETsCharge, discharge low-side NCH FET driversAlert interrupt to host microcontroller2.5-V or 3.3-V output voltage regulatorNo EEPROM programming necessaryHigh supply voltage absolute maximum (up to 108 V)Simple I2C compatible interface (CRC option)Random cell connection tolerantAFE monitoring featuresPure digital interfaceInternal ADC measures cell voltage, die temperature, and external thermistorA separate, internal ADC measures pack current (coulomb counter)Directly supports up to three thermistors (103AT)Hardware protection featuresOvercurrent in Discharge (OCD)Short Circuit in Discharge (SCD)Overvoltage (OV)Undervoltage (UV)Secondary protector fault detectionAdditional featuresIntegrated cell balancing FETsCharge, discharge low-side NCH FET driversAlert interrupt to host microcontroller2.5-V or 3.3-V output voltage regulatorNo EEPROM programming necessaryHigh supply voltage absolute maximum (up to 108 V)Simple I2C compatible interface (CRC option)Random cell connection tolerant
Description
AI
The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The BQ769x0 is designed with low power in mind: Sub-blocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.
The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.
The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The BQ769x0 is designed with low power in mind: Sub-blocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.
The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.