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BQ294533 Datasheet(PDF) 1 Page - Texas Instruments

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Part # BQ294533
Description  Overvoltage Protection For 2-Series and 3-Series Cell Li-Ion Batteries
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ294533 Datasheet(HTML) 1 Page - Texas Instruments

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VCELL1
VCELL3
VCELL2
OUT
VDD
VSS
RIN
bq2945xx
Pack +
Pack–
V3
V2
V1
RIN
RIN
CIN
CIN
CIN
CVD
RVD
PWRPAD
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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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.
bq294502, bq294504, bq294512, bq294514
bq294515, bq294522, bq294524, bq294532
bq294533, bq294562, bq294572, bq294582, bq294592
SLUSAJ3F – SEPTEMBER 2011 – REVISED JUNE 2017
bq2945xx Overvoltage Protection For 2-Series and 3-Series Cell Li-Ion Batteries
1
1 Features
1
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 bq2945xx 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(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq2945xx
SON (6)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic


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