BQ771800 - 用于 2 至 5 节锂离子电池（具有内部延迟定时器）的过压保护

BQ771800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，BQ771800是用于 2 至 5 节锂离子电池（具有内部延迟定时器）的过压保护，本站介绍了BQ771800的封装应用图解、特点和优点、功能等，并给出了与BQ771800相关的TI元器件型号供参考。

BQ771800 - 用于 2 至 5 节锂离子电池（具有内部延迟定时器）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-, 4-, and 5-Series Cell Overvoltage Protection
Internal 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 QFN (3.00 mm × 4.00 mm)

产品应用

Protection in Li-Ion Battery Packs in:
- Power Tools
- UPS Battery Backup
- Light Electric Vehicles (eBike, eScooter, Pedal Assist Bicycles)

产品说明

The bq7718xy family of products 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 bq7718xy device provides a Customer Test Mode (CTM) with greatly reduced delay time.

In the bq7718xy device, an internal 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).

Device Information Table(1)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
bq771800	QFN (8)	3.00 mm × 4.00 mm

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