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Circuitos integrados de gestión de baterías
Protectores de baterías

BQ2980

ACTIVO

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

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BQ2980

ACTIVO
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Detalles del producto

Function Protection Number of series cells (min) 1 Number of series cells (max) 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 Operating current (typ) (µA) 5 Rating Catalog 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
Function Protection Number of series cells (min) 1 Number of series cells (max) 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 Operating current (typ) (µA) 5 Rating Catalog 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): ±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 (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: 4 µA
    • SHUTDOWN mode: 0.1-µA maximum
  • Package:
    • 8-pin X2QFN: 1.50 × 1.50 × 0.37 mm
  • 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 (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: 4 µA
    • SHUTDOWN mode: 0.1-µA maximum
  • Package:
    • 8-pin X2QFN: 1.50 × 1.50 × 0.37 mm

The BQ298xyz 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 BQ298x device’s accuracy enables the use of a sense resistor as low as 1 mΩ.

The CTR pin in the BQ298x 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 BQ2980xy devices support zero-volt (0-V) charging, while the BQ2982xy devices have this disabled.

The BQ298xyz 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 BQ298x device’s accuracy enables the use of a sense resistor as low as 1 mΩ.

The CTR pin in the BQ298x 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 BQ2980xy devices support zero-volt (0-V) charging, while the BQ2982xy devices have this disabled.
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Documentación técnica

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* Data sheet BQ298xyz 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. J) PDF | HTML 19 dic 2022
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 abr 2024
EVM User's guide BQ2980EVM-883 Evaluation Module for BQ2980 High-Side Driver 11 may 2017

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

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

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 8 A of continuous current. The BQ2980EVM-883 is ideal for evaluation in (...)

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