Detalles del producto

Number of series cells (min) 9 Vin (max) (V) 70 Features Cell balancing, High precision, I2C support, Integrated ADC, Multi-cell support, Open-wire detection, Overtemperature protection, Overvoltage protection, Separate MCU requirement, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection Number of series cells (max) 14 Operating temperature range (°C) -40 to 125 Rating Catalog Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 5.1 TI functional safety category Functional Safety-Compliant Communication interface Daisy Chain, Daisy chain, I2C controller, SPI controller, UART
Number of series cells (min) 9 Vin (max) (V) 70 Features Cell balancing, High precision, I2C support, Integrated ADC, Multi-cell support, Open-wire detection, Overtemperature protection, Overvoltage protection, Separate MCU requirement, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection Number of series cells (max) 14 Operating temperature range (°C) -40 to 125 Rating Catalog Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 5.1 TI functional safety category Functional Safety-Compliant Communication interface Daisy Chain, Daisy chain, I2C controller, SPI controller, UART
HTQFP (PAP) 64 144 mm² 12 x 12
  • Functional Safety-Compliant
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL B
    • Hardware capability up to ASIL B
  • Measure 9 to 14 batteries in series per device, stackable up to 64 devices
  • Dedicated ADC with ±3.2mV accuracy over temperature
  • Cell voltage and battery pack current measurement synchronized to 64µs
  • Support limp mode with full redundancy
  • Integrated post-ADC configurable digital low-pass filters
  • Supports busbar without affecting measurement accuracy
  • 12 GPIOs for temp sensor/analog/digital/I2C controller/SPI controller
  • Internal cell balancing
    • Balancing at 300mA
    • User controlled PWM adjustment cell balancing current
    • Built-in balancing thermal management with automatic pause and resume control
  • Robust daisy chain communication and support Ring Architecture
  • Hardware reset by host simulates POR-like event without battery removal
  • Support transformer and capacitive isolation
  • On chip memory for one time custom programming
  • Low power mode current <6µA
  • Compatible with BQ79600-Q1 with SPI/UART interface
  • Functional Safety-Compliant
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL B
    • Hardware capability up to ASIL B
  • Measure 9 to 14 batteries in series per device, stackable up to 64 devices
  • Dedicated ADC with ±3.2mV accuracy over temperature
  • Cell voltage and battery pack current measurement synchronized to 64µs
  • Support limp mode with full redundancy
  • Integrated post-ADC configurable digital low-pass filters
  • Supports busbar without affecting measurement accuracy
  • 12 GPIOs for temp sensor/analog/digital/I2C controller/SPI controller
  • Internal cell balancing
    • Balancing at 300mA
    • User controlled PWM adjustment cell balancing current
    • Built-in balancing thermal management with automatic pause and resume control
  • Robust daisy chain communication and support Ring Architecture
  • Hardware reset by host simulates POR-like event without battery removal
  • Support transformer and capacitive isolation
  • On chip memory for one time custom programming
  • Low power mode current <6µA
  • Compatible with BQ79600-Q1 with SPI/UART interface

The BQ78706 provides high-accuracy cell voltage measurements for up to 14S battery modules in high-voltage battery management systems in energy storage systems (ESS) and portable power stations (PPS). This device has a state-of-the-art ADC architecture/measurement system meeting stringent safety requirements. With the daisy-chain isolated by transformer (or capacitor), the device is designed for centralized or distributed architectures in residential, commercial, or grid-scale energy storage systems.

The BQ78706 provides high-accuracy cell voltage measurements for up to 14S battery modules in high-voltage battery management systems in energy storage systems (ESS) and portable power stations (PPS). This device has a state-of-the-art ADC architecture/measurement system meeting stringent safety requirements. With the daisy-chain isolated by transformer (or capacitor), the device is designed for centralized or distributed architectures in residential, commercial, or grid-scale energy storage systems.

Descargar Ver vídeo con transcripción Video
Solicitar más información

La hoja de datos completa está disponible. Solicitar ahora

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 1
Tipo Título Fecha
* Data sheet BQ78706 Functional Safety-Compliant 14S Battery Monitor datasheet PDF | HTML 16 oct 2024

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.

Herramienta de diseño

BQ78706-DESIGN Design folder

Contains datasheet and design information
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Monitores y equilibradores de batería
BQ78706 Monitor, equilibrador y protector integrado de baterías apilables de 14 S industriales conforme a AS
Diseños de referencia

TIDA-010279 — Diseño de referencia de unidad de gestión de baterías apilables hasta 1500 V para sistemas de almace

Este diseño de referencia es una batería (52s) de iones de litio (Li‑ion) y fosfato de hierro y litio (LiFePO4) con detección completa de temperatura de las celdas y alta precisión de tensión de celda. El diseño supervisa la tensión y la temperatura de cada celda y protege la batería para (...)
Design guide: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTQFP (PAP) 64 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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos