BQ7721609 Series
Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer
| Part | Package / Case [y] | Package / Case [y] | Package / Case | Function | Battery Chemistry | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Supplier Device Package | Fault Protection | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ7721609PWR | 4.4 mm | 0.173 " | 24-TSSOP | Battery Protection | Lithium Ion | 16 | 3 | 24-TSSOP | Over Temperature, Over/Under Voltage | Surface Mount | 110 °C | -40 °C |
Key Features
• 3-series cell to 16-series cell protectionHigh-accuracy overvoltage protection± 10 mV at 25°C± 20 mV from 0°C to 60°COvervoltage protection options from 3.55 V to 5.1 VUndervoltage protection with options from 1.0 V to 3.5 VOpen-wire connection detectionOvertemperature protectionRandom cell connectionFunctional safety-capableFixed internal delay timersFixed detections thresholdsFixed output drive type for each of COUT and DOUTActive high or active lowActive high drive to 6 VOpen drain with the ability to be pulled up externally to VDDLow power consumption I CC ≈ 1 µA (V CELL(ALL) < V OV)Low leakage current per cell input < 100 nA with open wire detection disabledPackage footprint options:Leaded 24-pin TSSOP with 0.65-mm lead pitch3-series cell to 16-series cell protectionHigh-accuracy overvoltage protection± 10 mV at 25°C± 20 mV from 0°C to 60°COvervoltage protection options from 3.55 V to 5.1 VUndervoltage protection with options from 1.0 V to 3.5 VOpen-wire connection detectionOvertemperature protectionRandom cell connectionFunctional safety-capableFixed internal delay timersFixed detections thresholdsFixed output drive type for each of COUT and DOUTActive high or active lowActive high drive to 6 VOpen drain with the ability to be pulled up externally to VDDLow power consumption I CC ≈ 1 µA (V CELL(ALL) < V OV)Low leakage current per cell input < 100 nA with open wire detection disabledPackage footprint options:Leaded 24-pin TSSOP with 0.65-mm lead pitch
Description
AI
The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect overtemperature conditions.
In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).
The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect overtemperature conditions.
In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).