제품 상세 정보

Rating Catalog Number of series cells (max) 1 Number of series cells (min) 1 Features FET drive, High-side FET drive, Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Undervoltage Function Protection Operating current (typ) (µA) 5 Vin (max) (V) 5.5 Overvoltage protection 4.3, 4.4, 4.425, 4.44, 4.475, 4.5 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 3.75 Battery overvoltage protection (max) (V) 5.2
Rating Catalog Number of series cells (max) 1 Number of series cells (min) 1 Features FET drive, High-side FET drive, Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Undervoltage Function Protection Operating current (typ) (µA) 5 Vin (max) (V) 5.5 Overvoltage protection 4.3, 4.4, 4.425, 4.44, 4.475, 4.5 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 3.75 Battery overvoltage protection (max) (V) 5.2
X2QFN (RUG) 8 2.25 mm² 1.5 x 1.5
  • Voltage protection:
    • Overvoltage (OV): ±10mV
    • Undervoltage (UV): ±20mV
  • Current protection:
    • Overcurrent in charge (OCC): ±1mV
    • Overcurrent in discharge (OCD): ±1mV
    • Short circuit in discharge (SCD): ±5mV
  • Temperature protection:
    • Overtemperature (OT)
  • Additional features:
    • Supports as low as a 1mΩ sense resistor (RSNS)
    • High-side protection
    • High Vgs FET drive
    • 0V charging (only BQ2980)
    • 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: 4µA
    • SHUTDOWN mode: 0.1µA maximum
  • Package:
    • 8pin X2QFN: 1.50 × 1.50 × 0.37mm
  • Voltage protection:
    • Overvoltage (OV): ±10mV
    • Undervoltage (UV): ±20mV
  • Current protection:
    • Overcurrent in charge (OCC): ±1mV
    • Overcurrent in discharge (OCD): ±1mV
    • Short circuit in discharge (SCD): ±5mV
  • Temperature protection:
    • Overtemperature (OT)
  • Additional features:
    • Supports as low as a 1mΩ sense resistor (RSNS)
    • High-side protection
    • High Vgs FET drive
    • 0V charging (only BQ2980)
    • 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: 4µA
    • SHUTDOWN mode: 0.1µA maximum
  • Package:
    • 8pin X2QFN: 1.50 × 1.50 × 0.37mm

The BQ298xx 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 BQ298xx device’s accuracy enables the use of a sense resistor as low as 1mΩ.

The CTR pin in the BQ298xx 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. The BQ2980xx devices support zero-volt (0V) charging, while the BQ2982xx devices have this disabled.

The BQ298xx 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 BQ298xx device’s accuracy enables the use of a sense resistor as low as 1mΩ.

The CTR pin in the BQ298xx 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. The BQ2980xx devices support zero-volt (0V) charging, while the BQ2982xx devices have this disabled.

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* Data sheet BQ298xx 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. L) PDF | HTML 2025/03/18

설계 및 개발

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평가 보드

BQ2980EVM-883 — bq2980 단일 셀 고압측 보호기 평가 모듈

BQ2980EVM-883 EVM(평가 모듈)은 고압측 보호기 BQ2980 제품군을 평가하기 위한 것입니다. BQ2980EVM-883은 최대 8A 연속 전류의 빠른 충전과 고전류 애플리케이션에서 BQ2980 제품군의 성능을 보여줍니다. BQ2980EVM-883은 스마트폰, 웨어러블, 파워 뱅크 및 다양한 고전류 애플리케이션의 평가에 이상적입니다.

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X2QFN (RUG) 8 Ultra Librarian

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