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電池保護器

BQ77216

現行

具有內部延遲計時器，且適用於 3-s 至 16-s 芯鋰離子電池的電壓和溫度保護

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產品規格表

BQ77216

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Under-temperature (UT), Undervoltage Function Protection Operating current (typ) (µA) 1 Vin (max) (V) 85 TI functional safety category Functional Safety-Capable Overvoltage protection 3.6, 3.8, 4.225, 4.25, 4.275, 4.3, 4.325, 4.35 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.55 Battery overvoltage protection (max) (V) 5.1
Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Under-temperature (UT), Undervoltage Function Protection Operating current (typ) (µA) 1 Vin (max) (V) 85 TI functional safety category Functional Safety-Capable Overvoltage protection 3.6, 3.8, 4.225, 4.25, 4.275, 4.3, 4.325, 4.35 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.55 Battery overvoltage protection (max) (V) 5.1
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • 3-series cell to 16-series cell protection
  • High-accuracy overvoltage protection
    • ± 10mV at 25°C
    • ± 20mV from 0°C to 60°C
  • Overvoltage protection options from 3.55V to 5.1V
  • Undervoltage protection with options from 1.0V to 3.5V
  • Open-wire connection detection
  • Overtemperature protection
  • Undertemperature protection
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6V
    • Open drain with the ability to be pulled up externally to VDD
  • Low power consumption ICC ≈ 1µA (VCELL(ALL) < VOV)
  • Low leakage current per cell input < 100nA with open wire detection disabled
  • Package footprint options:
    • Leaded 24-pin TSSOP with 0.65mm lead pitch
  • 3-series cell to 16-series cell protection
  • High-accuracy overvoltage protection
    • ± 10mV at 25°C
    • ± 20mV from 0°C to 60°C
  • Overvoltage protection options from 3.55V to 5.1V
  • Undervoltage protection with options from 1.0V to 3.5V
  • Open-wire connection detection
  • Overtemperature protection
  • Undertemperature protection
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6V
    • Open drain with the ability to be pulled up externally to VDD
  • Low power consumption ICC ≈ 1µA (VCELL(ALL) < VOV)
  • Low leakage current per cell input < 100nA with open wire detection disabled
  • Package footprint options:
    • Leaded 24-pin TSSOP with 0.65mm lead pitch

The BQ77216xx family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), undertemperature (UT), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect undertemperature and overtemperature conditions.

In the BQ77216xx device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire,undertemperature, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

Overvoltage triggers the COUT pin if a fault is detected, and undervoltage triggers the DOUT pin if a fault is detected. If an overtemperature or open-wire fault is detected, then the DOUT and COUT are triggered. For quicker production-line testing, the BQ77216xx device provides a Customer Test Mode (CTM) with greatly reduced delay time.

The BQ77216xx family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), undertemperature (UT), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect undertemperature and overtemperature conditions.

In the BQ77216xx device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire,undertemperature, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

Overvoltage triggers the COUT pin if a fault is detected, and undervoltage triggers the DOUT pin if a fault is detected. If an overtemperature or open-wire fault is detected, then the DOUT and COUT are triggered. For quicker production-line testing, the BQ77216xx device provides a Customer Test Mode (CTM) with greatly reduced delay time.
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類型 標題 日期
* Data sheet BQ77216xx Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries with Internal Delay Timer datasheet (Rev. L) PDF | HTML 2025年 9月 18日
Technical article 為踏板供電：實現適用於電動自行車與電動機車且續航力更長 的 13S、48-v 鋰離子電池組 (Rev. A) PDF | HTML 2024年 5月 21日
Functional safety information BQ77216 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2021年 12月 8日
Certificate BQ77216EVM EU Declaration of Conformity (DoC) 2020年 7月 29日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

BQ77216EVM — 適用於 3 系列至 16 系列芯鋰離子電池評估模組的電壓和溫度保護

BQ77216EVM 評估模組 (EVM) 是適用於 BQ77216 的完整評估系統，而 BQ77216 是一款 3 芯至 16 芯
鋰離子電池防護積體電路。此電路模組包括一個 BQ77216 積體
電路 (IC)、熱敏電阻以及芯模擬電阻器，可提供完整的評估系統，在 16 系列芯鋰離子電池組中出現電池過充、
過放電和過熱的情況下會發出訊號。
使用指南: PDF
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參考設計

PMP23329 — 雙向 10s-16s 電池組參考設計（搭載 Arm® Cortex® M0+ 處理器）

此參考設計可測量 10s 至 16s LiFePO4 電池組的高電池電壓精度。此參考設計包含高精度電池監測保護器、電量計、二級保護裝置及 M0，用於程式編寫以及與其他裝置通訊。此設計會監控每個電池芯電壓、電池組電壓和電池組電流，以保護 LiFePO4 電池組，防止電池芯過電壓、電池芯欠電壓以及充電和放電過電流。電池電量計可準確預測電池組的容量和使用壽命。此設計採用高壓側 N 通道金屬氧化物半導體場效電晶體 (MOSFET) 架構，並具有強大驅動開啟和關閉能力。
Test report: PDF
參考設計

TIDA-010208 — 具精確電池測量和高側 MOSFET 控制的 10s-16s 電池組參考設計

此參考設計為低待機與運送模式電流消耗，以及高電池電壓準確度 10s–16s 鋰離子 (Li-ion) LiFePO4 電池組設計。此設計以高準確度監控各電池芯電壓、封裝電流、電池芯和 MOSFET 溫度，並保護鋰離子、LiFePO4 電池組，防止電池芯過電壓、電池芯欠電壓、過熱、充電和放電過電流和放電短路狀況。它採用高側 N 通道 MOSFET 架構，並具有強大驅動開啟和關閉能力。透過有效的輔助電源供應策略，此參考設計可達到 100-μA 待機與 10-μA 運送模式耗電量，可節省更多能源，還可延長運送時間及閒置時間。這些功能讓此參考設計高度適用於電動自行車與電動機車電池組應用。
Design guide: PDF
電路圖: PDF
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TSSOP (PW) 24 Ultra Librarian
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  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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