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電池管理 IC
電池監控器和平衡器

BQ75614-Q1

現行

符合 ASIL-D 規範的車用 16-S 精密電池監控器、平衡器和整合式保護器

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產品規格表

BQ75614-Q1

現行
產品規格表 立即訂購

產品詳細資料

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 現行 符合 ASIL-D 規範的車用 16-S 精密電池監控器、平衡器、電流感測器 Pin compatible with BQ75614-Q1. Same 64-pin QFP package without the sackable feature.
BQ79616-Q1 現行 符合 ASIL-D 規範的 16 節串聯車用精密電池監控器、平衡器和整合式保護器 Pin compatible with BQ75614-Q1. Same 64-pin QFP package without the current sensing feature.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 BQ75614-Q1 14S or 16S Standalone Precision Automotive Battery Monitor, Balancer and Integrated Current Sense datasheet (Rev. B) PDF | HTML 2023/10/30
應用說明 BQ79616-Q1 Software Design Reference (Rev. B) PDF | HTML 2023/8/21
更多文件說明 BMS solutions for 48-V and 400-V/800-V EV/HEV batteries 2021/12/14
技術文章 Save space, time and bill of materials with a smarter BMS for 48-V systems PDF | HTML 2021/9/8
使用指南 BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide 2020/12/14
技術文章 Enhance thermal management in EVs with autonomous cell balancing PDF | HTML 2020/12/9
技術文章 Conserve battery power in HEV/EVs with automatic host reverse wakeup PDF | HTML 2020/12/4
功能安全資訊 Functional Safety Considerations in Battery Management for Vehicles 2020/9/17
功能安全資訊 BQ75614-Q1 – The Highest Functional Safety Level and Performance for 48-V System 2019/9/13

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開發板

BQ75614EVM-021 — 具有整合式硬體保護器和電流感測的精密度監測器評估模組

BQ75614EVM 是 BQ75614-Q1 的評估模組 (EVM)。BQ75614-Q1 可為 6 至 14 個電池芯提供高準確度的電池電壓量測。BQ75614-Q1 裝置包含整合式電流監視器 ADC，因此也可提供高度準確的電流感測量測，以執行電池組的電池電量資料計算。
使用指南: PDF | HTML
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