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BQ294522

Texas Instruments
Part Number BQ294522
Manufacturer Texas Instruments
Description Overvoltage Protection
Published May 19, 2023
Detailed Description BQ294502, BQ294504, BQ294506, BQ294512, BQ294522 BQ294524, BQ294532, BQ294533, BQ294534, BQ294582, BQ294592 SLUSAJ3K – S...
Datasheet PDF File BQ294522 PDF File

BQ294522
BQ294522


Overview
BQ294502, BQ294504, BQ294506, BQ294512, BQ294522 BQ294524, BQ294532, BQ294533, BQ294534, BQ294582, BQ294592 SLUSAJ3K – SEPTEMBER 2011 – REVISED AUGUST 2022 BQ2945xy Overvoltage Protection For 2-Series and 3-Series Cell Li-Ion Batteries 1 Features • 2-series and 3-series cell overvoltage monitor for secondary protection • Fixed programmable delay timer • Fixed OVP threshold – Available range from 3.
85 V to 4.
6 V • Fixed OVP delay option: 4 s or 6.
5 s • 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 – 6-pin SON 2 Applications • Second-level protection in Li-ion battery packs in: – Tablets – Slates – Power tools – Notebook computers – Portable equipment and instrumentation 3 Description The BQ2945xy family of products is a secondary-level voltage monitor and protector for Li-ion battery pack systems.
Each cell is monitored independently for an overvoltage condition.
Based on the configuration, an output is triggered after a fixed delay if any of the two or three cells has an overvoltage condition.
This output is triggered into a high state after an overvoltage condition satisfies the specified delay timer.
Device Information PART NUMBER(1) PACKAGE BODY SIZE (NOM) BQ2945xy SON (6) 2.
00 mm × 2.
00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
Pack + VCELL3 VCELL2 VCELL 1 RVD RIN V3 RIN CIN V2 OUT VDD RIN CIN VSS V1 CVD PWRPAD CIN Pack – Copyright © 2017, Texas Instruments Incorporated Simplified Schematic 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.
PRODUCTION DATA.
BQ294502, BQ294504, BQ294506, BQ294512, BQ294522 BQ294524, BQ294532, BQ294533, BQ294534, BQ294582, BQ294592 SLUSAJ3K – SEPTEMBER 2011 – REVISED AUGUST 2022 www.
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