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BQ76PL455APFCT Datasheet(PDF) 96 Page - Texas Instruments

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Part # BQ76PL455APFCT
Description  16-Cell Industrial Integrated Battery Monitor
PDF  125 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ76PL455APFCT Datasheet(HTML) 96 Page - Texas Instruments

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VSENSE15
VSENSE16
VSENSE14
BAT16S_F
R16
75
Ÿ
R69
100
Ÿ
C16
Z16
6.2 V
BAT0
1
Q16
60 V
R15
75
Ÿ
R70
100 k
R88
2
NŸ
R76
C15
1
Q15
60 V
R22
100
NŸ
R89
2
NŸ
R24
100 V
1 F
BAT0
BAT15_F
BAT14_F
Z15
100 V
1 F
100
Ÿ
EQ16
100
Ÿ
EQ15
6.2 V
Copyright © 2016, Texas Instruments Incorporated
R1
100
Ÿ
To CELL2
RIN
100
Ÿ
VSENSE1
CELL1
VSENSE0
Back-to-back
signal diodes
C2
1 µF
AGND
Z1
6.2 V
C1
1 µF
D1
D2
Copyright © 2016, Texas Instruments Incorporated
96
bq76PL455A
SLUSCL0A – SEPTEMBER 2016 – REVISED OCTOBER 2016
www.ti.com
Product Folder Links: bq76PL455A
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Application Information (continued)
Figure 27. Connecting the AGND1 and VSENSE0 Pins
8.1.1.5 VSENSE to VSENSE Connections
To ensure that the voltage between the VSENSE_ inputs (VSENSE0 to VSENSE1, VSENSE1 to VSENSE2, and
so forth) does not violate the Absolute Maximum Ratings and Recommended Operating Conditions during hot-
plug or other unusual conditions, zener diodes must be connected between the VSENSE input pins, as close as
possible to the inputs. One zener across every input is advised. The zener diodes provide overvoltage protection
and a path for inrush current during a hotplug event. Figure 28 illustrates the correct VSENSE-to-VSENSE
connection.
BAT0S is the sense point to the negative terminal of CELL1. BAT0 is the power plane for the negative terminal of the
cell stack.
Figure 28. Cell Voltage Sense Circuit



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