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BQ2982

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BQ2982

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产品详情

Rating Catalog Number of series cells (max) 1 Number of series cells (min) 1 Features 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 4.25, 4.3, 4.44 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 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 4.25, 4.3, 4.44 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 mm × 1.5 mm)
  • 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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* 数据表 BQ298xx Voltage, Current, Temperature Protectors with an Integrated High-Side NFET Driver for Fast/Flash Charging Single-Cell Li-Ion and Li-Polymer Batteries 数据表 (Rev. M) PDF | HTML 2026-11-2

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BQ2980EVM-883 — Bq2980 单节电池高侧保护器评估模块

BQ2980EVM-883 评估模块 (EVM) 用于评估 BQ2980 系列高侧保护器。BQ2980EVM-883 展示了 BQ2980 系列在快速充电和高电流应用（连续电流高达 8A）中的性能。BQ2980EVM-883 非常适合在智能手机、可穿戴设备、移动电源等应用及各种高电流应用中进行评估。

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