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BQ78412 Fiches technique(PDF) 24 Page - Texas Instruments

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No de pièce BQ78412
Description  Pb-Acid Battery State-of-Charge Indicator With Run-Time Display
Download  36 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

BQ78412 Fiches technique(HTML) 24 Page - Texas Instruments

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OvThresh
Voltage (V)
0
End of
Discharge
EndDshgVolt
UvThresh
Charge
Voltage
Under
Voltage
Normal Operating Range
Over
Voltage
OtThresh
Temperature (C)
UtThresh
Under
Temp
Normal Temperature
Over
Temp
Over
Discharge
Over
Charge
Discharge
Charge
Idle
—OcdThresh
+
—TranstoActive
TranstoActive
OccThresh
Current (A)
UDG-10111
bq78412
SLUSAA0 – OCTOBER 2010
www.ti.com
Figure 6. Operating Ranges and Thresholds
Table 9. bq78412 Cumulative Usage Data (Stored in Volatile Memory)
CUMULATIVE
DATA
ADDRESS
BYTES
DESCRIPTION
UNITS
DATA
TYPE(1)
OtCount
Time temperature was above OtThresh
6 minutes
0x18
UtCount
Time temperature was below UtThresh
6 minutes
0x1A
OvCount
Time battery voltage exceeded OvThresh
6 minutes
0x1C
UvCount
Time battery voltage was below UvThresh
6 minutes
0x1E
OccCount
Time charge current was above OccThresh
6 minutes
0x20
OcdCount
Time discharge current was above OcdThresh
6 minutes
0x22
DoD80Count
Instances DoD exceeded 80% at end of discharge
0x24
2
U
DoD60Count
Instances DoD was between 61% and 80% at end of discharge
0x26
DoD30Count
Instances DoD was between 31% and 60% at end of discharge
0x28
DoD10Count
Instances DoD was between 11% and 30% at end of discharge
16 counts
0x2A
DoD0Count
Instances DoD was between 1% and 10% at end of discharge
16 counts
0x2C
DischargeAHCount
Cumulative AH out from battery
16 Ah
0x2E
ChargeAHCount
Cumulative AH in to battery
16 Ah
0x30
DischargeTime
Total time in discharge
6 minutes
0x32
(1)
S=signed integer, U=unsigned integer
24
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Product Folder Link(s): bq78412


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