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Product details

Parameters

Function Protection Number of series cells (Min) 1 Number of series cells (Max) 1 Communication interface No Communication Features Single cell protection, Over-voltage (OV), Under-voltage (UV), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Short-circuit Discharge (SCD), Over-temperature (OT) Typical operating current (Typ) (uA) 5 Rating Catalog Vin (Max) (V) 5.5 open-in-new Find other Battery protectors

Package | Pins | Size

X2QFN (RUG) 8 2 mm² 1.5 x 1.5 open-in-new Find other Battery protectors

Features

  • Voltage Protection:
    • Overvoltage (OV): ±10 mV
    • Undervoltage (UV): ±20 mV
  • Current protection
    • Overcurrent in charge (OCC): ±1 mV
    • Overcurrent in discharge (OCD): ±1 mV
    • Short circuit in discharge (SCD): ±5 mV
  • Temperature protection:
    • Overtemperature (OT)
  • Additional features:
    • Supports as low as a 1-mΩ sense resistor (RSNS)
    • High-side protection
    • High Vgs FET drive
    • 0-V charging
    • CTR pin for FET override control for system reset/shutdown
    • Configure CTR for second OT protection through an external PTC thermistor
  • Current consumption:
    • NORMAL mode: 4 µA
    • SHUTDOWN mode: 0.1-µA maximum
  • Package:
    • 8-pin X2QFN: 1.50 × 1.50 × 0.37 mm

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Description

The BQ2980xy family of devices, featuring integrated charge-pump FET drivers, provides high-side primary battery cell protection for 1-series li-ion and Li-Polymer batteries, enabling consistent Rdson across cell voltages. For better system thermal performance, the BQ2980 device’s accuracy enables the use of a sense resistor as low as 1 mΩ.

The CTR pin in the BQ2980 device can be configured to override the FET driver by host control to create a system reset or shutdown function. Alternatively, the CTR pin can be configured to connect an external Positive Temperature Coefficient (PTC) thermistor for FET OT protection in addition to the internal die temperature sensor.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet BQ2980xy Voltage, Current, Temperature Protectors with an Integrated High-Side NFET Driver for Fast/Flash Charging Single-Cell Li-Ion and Li-Polymer Batteries datasheet (Rev. E) Feb. 10, 2020
User guides BQ2980EVM-883 Evaluation Module for BQ2980 High-Side Driver May 11, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
149
Description
This evaluation module (EVM) is a complete evaluation system for the bq27z561 battery management system. The EVM includes bq27z561  and bq2980  circuit module and a link to Windows® based PC software. The circuit module includes bq27z561 and bq2980 integrated circuit (IC), and all (...)
Features
  • Easy to use impedance track gas gauge
  • Acurate cell current, temperature and voltage monitoring
  • Over voltage, under voltage, over current, over temperature and under temperature protection
  • 1-mOhm sense resistor
  • On board EV2400
  • On board dual programmable chargers
EVALUATION BOARDS Download
document-generic User guide
49
Description
The bq2980EVM-883 evaluation module (EVM) is to evaluate the bq2980 family of high-side protectors. The bq2980EVM-883 demonstrates the performance of the bq2980 family in fast charging and high current application as high as 8A of continuous current. The bq2980EVM-883 is ideal for evaluation in (...)
Features
  • Up to 8A of continuous charge and discharge currents
  • Small solution footprint and active component area
  • Various test points on key features of bq2980 (i.e. CTR pin)

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Package Pins Download
X2QFN (RUG) 8 View options

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