All trademarks are the property of their respective owners.
DescriptionThe BQ2970 battery cell protection deviceprovides an accurate monitor and trigger threshold for overcurrent protection during highdischarge/charge current operation or battery overcharge conditions.
The BQ2970 device provides the protection functions for li-ion/li-polymer cells, andmonitors across the external power FETs for protection due to high charge or discharge currents. Inaddition, there is overcharge and depleted battery monitoring and protection. These features areimplemented with low current consumption in NORMAL mode operation.
Feature
- Input voltage range pack+: VSS – 0.3 V to 12 V
- FET drive:
- CHG and DSG FET driveoutput
- Voltage sensing across external FETs forovercurrent protection (OCP) is within ±5 mV (typical)
- Faultdetection
- Overcharge detection (OVP)
- Over-dischargedetection (UVP)
- Charge overcurrent detection(OCC)
- Discharge overcurrent detection (OCD)
- Loadshort-circuit detection (SCP)
- Zero voltage chargingfor depleted battery
- Factory programmed fault protectionthresholds
- Fault detection voltage thresholds
- Faulttrigger timers
- Fault recoverytimers
- Modes of operation without battery chargerenabled
- NORMAL mode ICC = 4μA
- Shutdown Iq = 100 nA
- Operatingtemperature range TA = –40°C to +85°C
- Package:
- 6-pin DSE (1.50 mm × 1.50 mm× 0.75 mm)
All trademarks are the property of their respective owners.
DescriptionThe BQ2970 battery cell protection deviceprovides an accurate monitor and trigger threshold for overcurrent protection during highdischarge/charge current operation or battery overcharge conditions.
The BQ2970 device provides the protection functions for li-ion/li-polymer cells, andmonitors across the external power FETs for protection due to high charge or discharge currents. Inaddition, there is overcharge and depleted battery monitoring and protection. These features areimplemented with low current consumption in NORMAL mode operation.
