BQ2970 Li-Ion/Li Polymer Advanced Single-Cell Battery Protector IC Family | TI.com

BQ2970 (ACTIVE)

Li-Ion/Li Polymer Advanced Single-Cell Battery Protector IC Family

 

Special note

The bq2970 is a family of single-cell (1S) advanced battery protectors with various spin versions that differ in thresholds and delay timers, so please refer to the datasheet for a list of the spin versions or look at the table below.

Description

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.

Features

  • Input Voltage Range Pack+: VSS – 0.3 V to 12 V
  • FET Drive:
    • CHG and DSG FET Drive Output
  • Voltage Sensing Across External FETs for Overcurrent Protection (OCP) Is Within ±5 mV (Typical)
  • Fault Detection
    • Overcharge Detection (OVP)
    • Over-Discharge Detection (UVP)
    • Charge Overcurrent Detection (OCC)
    • Discharge Overcurrent Detection (OCD)
    • Load Short-Circuit Detection (SCP)
  • Zero Voltage Charging for Depleted Battery
  • Factory Programmed Fault Protection Thresholds
    • Fault Detection Voltage Thresholds
    • Fault Trigger Timers
    • Fault Recovery Timers
  • Modes of Operation Without Battery Charger Enabled
    • NORMAL Mode ICC = 4 µA
    • Shutdown Iq = 100 nA
  • Operating Temperature 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.

Parametrics

Compare all products in Battery protectors Email Download to Excel
Part number Order Function Number of series cells (Min) Number of series cells (Max) Communication interface Features Typical operating current (Typ) (uA) Rating Vin (Max) (V) Package Group Approx. price (US$)
BQ2970 Order now Protection     1     1     No Communication     Low-Side NCH CHG/DSG FET Drive
Programmable EEPROM or EPROM
Over-current in Charge (OCC)
Over-current in Discharge (OCD)
Over-voltage (OV)
Short-circuit Discharge (SCD)
Under-voltage (UV)    
4     Catalog     8     WSON | 6     0.20 | 1ku    
BQ2980 Order now Protection     1     1     No Communication     Analog current sense
High-Side NCH CHG/DSG FET Drive
Programmable EEPROM or EPROM
Temperature sense
Over-current in Charge (OCC)
Over-current in Discharge (OCD)    
5     Catalog     5.5     X2QFN | 8     0.30 | 1ku