BQ771604 - 用于 2 至 4 节锂离子电池（具有外部延迟电容器）的过压保护

BQ771604是TI德州仪器公司的一款电池监控,保护及认证解决方案产品，BQ771604是用于 2 至 4 节锂离子电池（具有外部延迟电容器）的过压保护，本站介绍了BQ771604的封装应用图解、特点和优点、功能等，并给出了与BQ771604相关的TI元器件型号供参考。

BQ771604 - 用于 2 至 4 节锂离子电池（具有外部延迟电容器）的过压保护 - 电池监控,保护及认证解决方案 - 电池管理产品 - 德州仪器

产品特性

2-, 3-, and 4-Series Cell Overvoltage Protection
External Capacitor-Programmed Delay Timer
Fixed OVP Threshold
High-Accuracy Overvoltage Protection: ±10 mV
Low Power Consumption ICC ≈ 1 µA (VCELL(ALL) < VPROTECT)
Low Leakage Current Per Cell Input < 100 nA
Small Package Footprint
- 8-pin WSON (3.00 mm × 4.00 mm)

产品应用

Power Tools
UPS Battery Backup
Light Electric Vehicles
- eBike
- eScooter
- Pedal Assist Bicycles

产品说明

The bq7716xy device family provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker production-line testing, the bq7716xy device provides a Customer Test Mode with greatly reduced delay time.

In the bq7716xy device, an external delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low, depending on the configuration). The external delay timer feature also includes the ability to detect an open or shorted delay capacitor on the CD pin, which will similarly trigger the output driver in an overvoltage condition.

Table 1. Device Information Table(1)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
bq771600	WSON (8)	3.00 mm × 4.00 mm

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