W83783S Datasheet, PDF (57/57 Pages) Winbond – MONITORING IC

11. APPLICATION CIRCUIT OF WINBOND W83783S
Beep Circuits
VCC
BEEP/GPO#
R12
R
10K
R2
R
510
R13
R
100
LS1
SPEAKER
Q1
NPN
3904
TO PIIX4
3VCC
THRM#
{
EXTSMI#
3VCC
SDA
SCL
R
R4 0
R3 0
R
R7
R
4.7K
R8
R
4.7K
OVT#
SMI#
CLKIN
R5
R
4.7K
R6
R
4.7K
SMDAT
SMCLK
VID4
FANIN1
FANIN2
PWMOUT1
OVT#
BEEP/GPO#
VID3
SMI#
SCL
SDA
+12V
D2
1N4148
JP2
3
2
1
HEADER 3
(CPU FAN)
R24
4.7K
R23 27K
FANIN2
R22
10K
Fan Speed Control Circuit
R20 4.7K
R19 1K
PWMOUT1
R21 510
Q3
MOSFET N
2N7002
+12V
Q2
3906
D1
1N4148
C3 ₊
47u
JP1
3
2
1
HEADER 3
(SYSTEM FAN)
U1
1
2
3
4
VID4
FANIN1
FANIN2
5
6
FANIN3/PWMOUT1
OVT#
7
8
9
10
11
BEEP/GPO#
VID3
CLKIN
SMI#/PWMOUT2
GNDD
12
SCL
SDA
W83783S
VCC
C1
CAP
10u
C2
CAP
0.1u
VCC
VT1/PII1
VREF
24
23
22
21
VCORE
+3.3VIN
20
19
+12VIN
-12VIN
-5VIN/VT2/PII2
GNDA
VID0
18
17
16
15
14
VID1
VID2
13
VT1/PII1
VREF
VCORE
+3.3VIN
+12VIN
-12VIN
-5VIN
GNDA
VID0
VID1
VID2
L1
INDUCTOR
FB
VOLTAGE SENSORING CIRCUIT
VCORE
+3.3VIN
R9
R
10K
R1
R
10K
CPU_VCORE
3VCC
+12VIN
GNDA
R14
R
10K 1%
R15
R
28K 1%
+12V
VREF
R10 R
56K 1%
R32
R
56K 1%
R11 R
232K 1%
-12VIN
-5VIN
-12V
R33 _R
-5V
120K 1%
TEMPERATURE SENSORING CIRCUIT
(Select one of the
following method)
VREF
R30 R
10K 1%
RT1
10K 1%
GNDA
THERMISTOR
VT1/PII1
VREF
Note:
R31 R
30K 1%
PIID+
PIID-
VT1/PII1
C4
CAPACITOR NON-POL
3300p
GNDA
1. VT1 is for CPU temperature
2. VT2 is for SYSTEM temperature
CPU Voltage ID output
R18
4.7K
R17 27K
FANIN1
R16
10K
3VCC
PIIVID4
PIIVID3
PIIVID2
PIIVID1
PIIVID0
R25
10K
R26
10K
R27
10K
R28
10K
R29
10K
VID4
VID3
VID2
VID1
VID0
WINBOND ELECTRONICS CORP.
Title
W83783S Application Circuit
Size
Document Number
Custom
Date: Wednesday, July 22, 1998
Sheet
1
Rev
0.2
of
1