BQ2970 Series
Lithium-ion (Li-ion) and lithium-polymer (Li-Po) advanced single-cell battery protector
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Lithium-ion (Li-ion) and lithium-polymer (Li-Po) advanced single-cell battery protector
| Part | Mounting Type | Battery Chemistry | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Function | Fault Protection | Number of Cells |
|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ29704DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29703DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29707DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29704DSET | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29703DSET | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29701DSET | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29706DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29702DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29702DSET | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29700DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29705DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29701DSER | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Texas Instruments BQ29706DSET | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 6-WFDFN | Battery Protection | Over Current, Over/Under Voltage, Short Circuit | 1 |
Key Features
• Input voltage range pack+: VSS – 0.3V to 12VFET drive:CHG and DSG FET drive outputVoltage sensing across external FETs for overcurrent protection (OCP) is within ±5mV (typical)Fault detectionOvercharge detection (OVP)Over-discharge detection (UVP)Charge overcurrent detection (OCC)Discharge overcurrent detection (OCD)Load short-circuit detection (SCP)Zero voltage charging for depleted batteryFactory programmed fault protection thresholdsFault detection voltage thresholdsFault trigger timersFault recovery timersModes of operation without battery charger enabledNORMAL mode ICC = 4µAShutdown Iq = 100nAOperating temperature range TA = –40°C to +85°CPackage:6-pin DSE (1.50mm × 1.50mm × 0.75mm)Input voltage range pack+: VSS – 0.3V to 12VFET drive:CHG and DSG FET drive outputVoltage sensing across external FETs for overcurrent protection (OCP) is within ±5mV (typical)Fault detectionOvercharge detection (OVP)Over-discharge detection (UVP)Charge overcurrent detection (OCC)Discharge overcurrent detection (OCD)Load short-circuit detection (SCP)Zero voltage charging for depleted batteryFactory programmed fault protection thresholdsFault detection voltage thresholdsFault trigger timersFault recovery timersModes of operation without battery charger enabledNORMAL mode ICC = 4µAShutdown Iq = 100nAOperating temperature range TA = –40°C to +85°CPackage:6-pin DSE (1.50mm × 1.50mm × 0.75mm)
Description
AI
The BQ2970 battery cell protection device provides an accurate monitor and trigger threshold for overcurrent protection during high discharge/charge current operation or battery overcharge conditions.
The BQ2970 device provides the protection functions for Li-ion/Li-polymer cells, and monitors across the external power FETs for protection due to high charge or discharge currents. In addition, there is overcharge and depleted battery monitoring and protection. These features are implemented with low current consumption in NORMAL mode operation.
The BQ2970 battery cell protection device provides an accurate monitor and trigger threshold for overcurrent protection during high discharge/charge current operation or battery overcharge conditions.
The BQ2970 device provides the protection functions for Li-ion/Li-polymer cells, and monitors across the external power FETs for protection due to high charge or discharge currents. In addition, there is overcharge and depleted battery monitoring and protection. These features are implemented with low current consumption in NORMAL mode operation.