W83782D Datasheet, PDF (20/73 Pages) Winbond – MONITORING IC

Preliminary W83782D
6.3 Analog Inputs
The maximum input voltage of the analog pin is 4.096V because the 8-bit ADC has a 16mv LSB.
Really, the application of the PC monitoring would most often be connected to power suppliers. The
CPU V-core voltage ,+3.3V and battery voltage can directly connected to these analog inputs. The
5VSB and +12V inputs should be reduced a factor with external resistors so as to obtain the input
range. As Figure 11 shows.
R1
V1
Positive Input
Positive Inputs
12VIN
V2
R2
+2.5VINA
+2.5VINB
+3.3VIN
VDD(+5V)
VBAT
R3
Pin 36
Pin 35
Pin 34
Pin 33
Pin 30
Pin 32
5VSB Pin 29
R4
8-bit ADC
with
16mV LSB
R5
V3
Negative Input
R7
V4
N12VIN
N5VIN
Pin 31
Pin 28
Typical Thermister Connection
R8
R6
R
10K, 1% _VREF
Pin 37
VTIN3
Pin 38
RTHM
10K, 25 C
VTIN2
VTIN1
Pin 39
Pin 40
**The Connections of VTIN1 and VTIN2
are same as VTIN3
Figure 11.
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