BQ2980

ACTIVO

Protector de lado alto para baterías de iones de litio y polímero de una celda

Detalles del producto

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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Documentación técnica

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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 18 mar 2025

Diseño y desarrollo

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Placa de evaluación

BQ2980EVM-883 — Módulo de evaluación de protector de lado alto de una celda bq2980

El módulo de evaluación (EVM) BQ2980EVM-883 sirve para evaluar la familia BQ2980 de protectores de lado alto. El BQ2980EVM-883 demuestra el rendimiento de la familia BQ2980 en aplicaciones de carga rápida y alta corriente, con una corriente continua de hasta 8 A. El BQ2980EVM-883 es ideal para su (...)

Guía del usuario: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
X2QFN (RUG) 8 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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