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Product Overview
The BQ7721602PWR from Texas Instruments is a high-performance battery monitor and protector IC designed for multi-cell Li-ion, Li-Polymer, and LiFePO4 battery packs. It supports 2 to 16 series cells and integrates overvoltage (OVP), undervoltage (UVP), and overtemperature (OTP) protection. The device is housed in a compact 24-TSSOP package, making it suitable for space-constrained applications.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Cells |
2 to 16 series |
| Overvoltage Protection (OVP) |
Programmable, ±10 mV accuracy |
| Undervoltage Protection (UVP) |
Programmable, ±15 mV accuracy |
| Overtemperature Protection (OTP) |
Internal and external NTC |
| Operating Voltage |
4.5 V to 75 V |
| Quiescent Current |
Typ. 20 µA (normal mode) |
| Package |
24-TSSOP |
| Operating Temperature |
-40°C to +85°C |
Key Features
- Wide cell voltage range: 0.5 V to 5 V per cell
- Independent OVP and UVP thresholds with hysteresis
- Built-in cell balancing control (passive)
- Low power consumption: 20 µA typical
- Integrated diagnostics and fault detection
- I2C interface for configuration and monitoring
Target Applications
- 5G base station backup battery packs
- Electric vehicle (EV) battery management systems
- Energy storage systems (ESS) for solar and wind
- Industrial UPS systems
- Portable power tools and garden equipment
- Medical devices (e.g., portable ventilators)
Global Supply Chain & Wholesale Solutions
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and seals to ensure ESD protection and physical integrity.
產品概述
BQ7721602PWR 是德州儀器(TI)推出的一款高性能電池監控與保護 IC,適用於多節鋰離子、鋰聚合物及磷酸鐵鋰電池組。它支持 2 至 16 串電池,集成過壓(OVP)、欠壓(UVP)和過溫(OTP)保護功能。器件採用緊湊的 24-TSSOP 封裝,適合空間受限的應用。
詳細技術參數
| 參數 |
數值 |
| 電池串數 |
2 至 16 串 |
| 過壓保護(OVP) |
可編程,精度 ±10 mV |
| 欠壓保護(UVP) |
可編程,精度 ±15 mV |
| 過溫保護(OTP) |
內部及外部 NTC |
| 工作電壓 |
4.5 V 至 75 V |
| 靜態電流 |
典型 20 µA(正常模式) |
| 封裝 |
24-TSSOP |
| 工作溫度 |
-40°C 至 +85°C |
核心特性
- 寬電池電壓範圍:每節 0.5 V 至 5 V
- 獨立的 OVP 和 UVP 閾值,帶遲滯
- 內置電池均衡控制(被動)
- 低功耗:典型 20 µA
- 集成診斷和故障檢測
- I2C 接口用於配置和監控
典型應用場景
- 5G 基站備用電池組
- 電動汽車(EV)電池管理系統
- 太陽能及風能儲能系統
- 工業 UPS 系統
- 便攜式電動工具及園林設備
- 醫療設備(如便攜式呼吸機)
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