bq7718 Overvoltage Protection for 2-Series to 5-Series Cell Li-Ion Batteries with Internal Delay Timer (Rev. E)
SLUSAX1E – December2012 – revisedMarch 2017
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
- Protection in Li-Ion Battery Packs in:
- Power Tools
- UPS Battery Backup
- Light Electric Vehicles (eBike, eScooter, Pedal Assist Bicycles)
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||WSON (8)||3.00 mm × 4.00 mm|
- For all available packages, see the orderable addendum at the end of the data sheet and the Device Comparison Table.
Copyright© 2017, Texas Instruments Incorporated. An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers.Submit Documentation Feedback