Datasheet

ALERTTHERM2/
THERM
0.1 Fm 10k
(typ)
W 10k
(typ)
W 10k
(typ)
W 10k
(typ)
W
TMP432
+5V
SCL
GND
SDA
V+
SMBus
Controller
8
5
7
6
DXP1
DXN1
1
2
3
4
DXP2
DXN2
9
10
FanController
C
(3)
DIFF
R
(2)
S
R
(2)
S
R
(2)
S
C
(3)
DIFF
R
(2)
S
R
(2)
S
C
(3)
DIFF
R
(2)
S
Diode-connectedconfiguration :
(1)
SeriesResistance
GNDcollector-connectedtransistorconfiguration :
(1)
(1)Diode-connectedconfigurationprovidesbettersettlingtime.
GNDcollector-connectedtransistorconfigurationprovidesbetterseriesresistancecancellation.
(2)R (optional)shouldbe<1k inmostapplications.SelectionofRW dependson
S S
specificapplication;see section.Filtering
(3)C shouldbe<2200pF.SelectionofC dependsonspecificapplication;
DIFF DIFF
see sectionandFigure9,Filtering RemoteTemperatureErrorvsDifferentialCapacitance.
NOTES:
0.1 Fm
10kW
(typ)
10kW
(typ)
10kW
(typ)
10kW
(typ)
TMP431
DXP
DXN
V+
1
8
7
6
4
5
3
2
R
(2)
S
R
(2)
S
C
(3)
DIFF
C
(3)
DIFF
R
(2)
S
R
(2)
S
GND
SCL
SDA
ALERTTHERM2/
THERM
+5V
SMBus
Controller
FanController
Diode-connectedconfiguration :
(1)
SeriesResistance
GNDcollector-connectedtransistorconfiguration :
(1)
(1)Diode-connectedconfigurationprovidesbettersettlingtime.
GNDcollector-connectedtransistorconfigurationprovidesbetterseriesresistancecancellation.
(2)R (optional)shouldbe<1k inmostapplications.SelectionofRW dependson
S S
specificapplication;see section.Filtering
(3)C shouldbe<2200pF.SelectionofC
DIFF DIFF
dependsonspecificapplication;
see sectionandFigure9,Filtering RemoteTemperatureErrorvsDifferentialCapacitance.
NOTES:
TMP431
TMP432
SBOS441F –SEPTEMBER 2009–REVISED AUGUST 2013 www.ti.com
Figure 15. TMP431 Basic Connections
Figure 16. TMP432 Basic Connections
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