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Circuitos integrados de gestión de baterías
Monitores y equilibradores de batería

BQ75614-Q1

ACTIVO

Monitor de precisión de batería 16-S para automoción, equilibrador y protector integrado conforme a

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BQ75614-Q1

ACTIVO
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Detalles del producto

Rating Automotive Number of series cells (max) 14 Number of series cells (min) 6 Features Cell balancing, 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 Vin (max) (V) 80 Communication interface UART Device type Cell monitor and balancer Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 4.5 TI functional safety category Functional Safety-Compliant Operating current (typ) (µA) 9000
Rating Automotive Number of series cells (max) 14 Number of series cells (min) 6 Features Cell balancing, 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 Vin (max) (V) 80 Communication interface UART Device type Cell monitor and balancer Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 4.5 TI functional safety category Functional Safety-Compliant Operating current (typ) (µA) 9000
HTQFP (PAP) 64 144 mm² (12 mm × 12 mm)
  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Compliant
  • +/- 1.5mV ADC accuracy
  • Pin-package and software compatible device family:
    • Stackable monitor 16S (BQ79616-Q1, BQ79616H-Q1, BQ79656-Q1) , 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)
    • Standalone monitor 48 V system (BQ75614-Q1)
  • Supports current-sense measurement
  • Direct support on fuse and relay open and close diagnostics
  • Built-in redundancy path for voltage and temperature and current diagnostics
  • Highly accurate cell voltage measurements within 128 µs for all cell channels
  • Integrated post-ADC configurable digital low-pass filters
  • Built-in host-controlled hardware reset to emulate POR-like device reset
  • Supports internal cell balancing
    • Balancing current at 240 mA
    • Built-in balancing thermal management with automatic pause and resume control
  • 5 V LDO output to power external digital isolator
  • UART host interface
  • Built-in SPI master
  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Compliant
  • +/- 1.5mV ADC accuracy
  • Pin-package and software compatible device family:
    • Stackable monitor 16S (BQ79616-Q1, BQ79616H-Q1, BQ79656-Q1) , 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)
    • Standalone monitor 48 V system (BQ75614-Q1)
  • Supports current-sense measurement
  • Direct support on fuse and relay open and close diagnostics
  • Built-in redundancy path for voltage and temperature and current diagnostics
  • Highly accurate cell voltage measurements within 128 µs for all cell channels
  • Integrated post-ADC configurable digital low-pass filters
  • Built-in host-controlled hardware reset to emulate POR-like device reset
  • Supports internal cell balancing
    • Balancing current at 240 mA
    • Built-in balancing thermal management with automatic pause and resume control
  • 5 V LDO output to power external digital isolator
  • UART host interface
  • Built-in SPI master

The BQ75614-Q1 device provides high-accuracy cell voltage measurements up to 16S battery modules in less than 200 µs while these devices also support shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage rated, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This device also supports integrated current sensing capabilities with option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.

This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.

Host communication to the BQ75614-Q1 can be connected via the device’s dedicated UART interface.

All references to the BQ79616-Q1 device also apply to the BQ79616H-Q1 device.

The BQ75614-Q1 device provides high-accuracy cell voltage measurements up to 16S battery modules in less than 200 µs while these devices also support shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage rated, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This device also supports integrated current sensing capabilities with option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.

This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.

Host communication to the BQ75614-Q1 can be connected via the device’s dedicated UART interface.

All references to the BQ79616-Q1 device also apply to the BQ79616H-Q1 device.
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BQ79656-Q1 ACTIVO Monitores de precisión de bat. 16S automotriz, equilibrador, sensor de corriente conforme a ASIL-D Pin compatible with BQ75614-Q1. Same 64-pin QFP package without the sackable feature.
BQ79616-Q1 ACTIVO Monitor de precisión de batería para automoción 16-S, equilibrador y protector integrado conforme a Pin compatible with BQ75614-Q1. Same 64-pin QFP package without the current sensing feature.

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos BQ75614-Q1 14S or 16S Standalone Precision Automotive Battery Monitor, Balancer and Integrated Current Sense datasheet (Rev. B) PDF | HTML 30/10/2023
Nota sobre la aplicación BQ79616-Q1 Software Design Reference (Rev. B) PDF | HTML 21/08/2023
Más documentación BMS solutions for 48-V and 400-V/800-V EV/HEV batteries 14/12/2021
Artículo técnico Save space, time and bill of materials with a smarter BMS for 48-V systems PDF | HTML 8/09/2021
Guía del usuario BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide 14/12/2020
Artículo técnico Enhance thermal management in EVs with autonomous cell balancing PDF | HTML 9/12/2020
Artículo técnico Conserve battery power in HEV/EVs with automatic host reverse wakeup PDF | HTML 4/12/2020
Información sobre seguridad funcional Functional Safety Considerations in Battery Management for Vehicles 17/09/2020
Información sobre seguridad funcional BQ75614-Q1 – The Highest Functional Safety Level and Performance for 48-V System 13/09/2019

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

BQ75614EVM-021 — Monitor de precisión con protector de hardware integrado y módulo de evaluación de detección de corr

El BQ75614EVM es un módulo de evaluación (EVM) para el BQ75614‑Q1. El BQ75614-Q1 proporciona mediciones de tensión de celda de alta precisión para 6 a 14 celdas de batería. Con la inclusión de un ADC de monitor de corriente integrado, el dispositivo BQ75614-Q1 también puede proporcionar mediciones (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
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Soporte de software

SLVC810 — BQAutoEval GUI 1.0.4

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTQFP (PAP) 64 Ultra Librarian
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