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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

Number of series cells (min) 6 Vin (max) (V) 80 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 Device type Cell monitor and balancer Number of series cells (max) 14 Operating temperature range (°C) -40 to 125 Rating Automotive Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 4.5 TI functional safety category Functional Safety-Compliant Communication interface UART Operating current (typ) (µA) 9000
Number of series cells (min) 6 Vin (max) (V) 80 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 Device type Cell monitor and balancer Number of series cells (max) 14 Operating temperature range (°C) -40 to 125 Rating Automotive Battery overvoltage protection (min) (V) 2.7 Battery overvoltage protection (max) (V) 4.5 TI functional safety category Functional Safety-Compliant Communication interface UART Operating current (typ) (µA) 9000
HTQFP (PAP) 64 144 mm² 12 x 12
  • 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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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.
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.

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類型 標題 日期
* Data sheet BQ75614-Q1 14S or 16S Standalone Precision Automotive Battery Monitor, Balancer and Integrated Current Sense datasheet (Rev. B) PDF | HTML 2023年 10月 30日
EVM User's guide BQ79616-Q1, BQ75614-Q1, BQ79656-Q1 Evaluation Modules User's Guide (Rev. C) PDF | HTML 2023年 8月 30日
Application note BQ79616-Q1 Software Design Reference (Rev. B) PDF | HTML 2023年 8月 21日
More literature BMS solutions for 48-V and 400-V/800-V EV/HEV batteries 2021年 12月 14日
Technical article Save space, time and bill of materials with a smarter BMS for 48-V systems PDF | HTML 2021年 9月 8日
User guide BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide 2020年 12月 14日
Technical article Enhance thermal management in EVs with autonomous cell balancing PDF | HTML 2020年 12月 9日
Technical article Conserve battery power in HEV/EVs with automatic host reverse wakeup PDF | HTML 2020年 12月 4日
Functional safety information Functional Safety Considerations in Battery Management for Vehicles 2020年 9月 17日
Functional safety information BQ75614-Q1 – The Highest Functional Safety Level and Performance for 48-V System 2019年 9月 13日

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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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產品
電池監控器和平衡器
BQ75614-Q1 — 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 BQ79600-Q1 — 具備自動主機喚醒功能且符合功能安全規範的車用 SPI/UART 通訊介面 BQ79616-Q1 — 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
硬體開發
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 BQ79616EVM-021 — 適用 16-S 精密電池監控器、平衡器、整合式保護器的 BQ79616 評估模組 BQ79656EVM-021 — BQ79656-Q1 車用 16-S 精密電池監控器平衡器整合式保護器評估模組
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