BQ77216
- 3-series cell to 16-series cell protection
- High-accuracy overvoltage protection
- ± 10 mV at 25°C
- ± 20 mV from 0°C to 60°C
- Overvoltage protection options from 3.55 V to 5.1 V
- Undervoltage protection with options from 1.0 V to 3.5 V
- Open-wire connection detection
- Overtemperature 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 6 V
- Open drain with the ability to be pulled up externally to VDD
- Low power consumption I CC ≈ 1 µA (V CELL(ALL) < V OV)
- Low leakage current per cell input < 100 nA with open wire detection disabled
- Package footprint options:
- Leaded 24-pin TSSOP with 0.65-mm lead pitch
The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), 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 overtemperature conditions.
In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, 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).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries with Internal Delay Timer datasheet (Rev. J) | PDF | HTML | 2023年 11月 6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 | |
| EVM User's guide | BQ77216EVM User's Guide (Rev. A) | 2020年 11月 19日 | ||
| Certificate | BQ77216EVM EU Declaration of Conformity (DoC) | 2020年 7月 29日 |
設計與開發
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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
cell li-ion battery protection integrated circuit. The circuit module includes one BQ77216 integrated
circuit (IC), thermistor, and cell simulation resistors to provide a complete evaluation system (...)
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
| 封裝 | 引腳 | 下載 |
|---|---|---|
| TSSOP (PW) | 24 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。