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BQ771802DPJT Datasheet(PDF) 1 Page - Texas Instruments

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Part # BQ771802DPJT
Description  Overvoltage Protection for 2-Series to 5-Series Cell Li-Ion Batteries with Internal Delay Timer
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ771802DPJT Datasheet(HTML) 1 Page - Texas Instruments

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VDD
V5
V4
V3
OUT
VSS
V1
V2
bq771800, bq771801
bq771802, bq771803
www.ti.com
SLUSAX1 – DECEMBER 2012
Overvoltage Protection for 2-Series to 5-Series Cell Li-Ion Batteries
with Internal Delay Timer
Check for Samples: bq771800, bq771801, bq771802, bq771803
1
FEATURES
Small Package Footprint
8-pin QFN (3 mm × 4 mm)
2-, 3-, 4-, and 5-Series Cell Overvoltage
Protection
APPLICATIONS
Internal Delay Timer
Protection in Li-Ion Battery Packs in:
Fixed OVP Threshold
Power Tools
High-Accuracy Overvoltage Protection:
± 10 mV
UPS Battery Backup
Low Power Consumption ICC ≈ 1 µA
Light Electric Vehicles (eBike, eScooter,
(VCELL(ALL) < VPROTECT)
Pedal Assist Bicycles)
Low Leakage Current Per Cell Input < 100 nA
DESCRIPTION
The bq7718xy family of products is an overvoltage monitor and protector for Li-Ion battery pack systems. Each
cell is monitored independently for an overvoltage condition.
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). For quicker production-line testing, the bq7718xy device provides a Customer Test Mode with
greatly reduced delay time.
Figure 1. bq771800 Pinout
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright © 2012, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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