W83697HF_05 Datasheet, PDF (99/102 Pages) Winbond – LPC I/O

W83697HF
Hardware Monitor circuits
Temperature Sensing
VREF
VTIN1
VTIN2
AGND
R25 10K 1%
RT1
10K 1%
THERMISTOR
(for system)
R26 30K
D+
D+
D-
D-
C39
3300P
(from Deschutes)
Voltage Sensing
CPUVCOA
R27 R
10K
VCORE
VCC3V
R28 R
10K
+12V
R29 R
28K 1%
R30 R
10K 1%
+3.3VIN
+12VIN
AGND
VREF
R31 56K 1%
R33
56K 1%
R32
232K 1%
-12V
-12VIN
R34
120K 1%
-5VIN
-5V
PWM Circuit for FAN speed control
+12V
R35 4.7K
R36 1K
Q1
PNP
3906
D3
1N4148
R37
4.7K
FANPWM1
R48 510
Q2
MOSFET N
2N7002
C37 +
10u
JP2
3
2
1
HEADER 3
R38 27K
FANIO1
R39
10K
FANPWM2
R40 510
R41 4.7K
R42 1K
Q4
MOSFET N
2N7002
+12V
Q3
PNP
3906
D4
1N4148
C38
+
10u
JP3
3
2
1
HEADER 3
R43
4.7K
R44 27K
FANIO2
R45
10K
R49
VBAT
2M
CASEOPEN#
S1
CASEOPEN SW
Beep Circuits
VCC
R46
10K
BEEP
R47
100
LS1
SPEAKER
Q5
3904
L2
AVCC
FB
L3
AGND
FB
VCC
Winbond Electronic Corp.
Title
W83697HF (LPC I/O+ H/W + FLASH ROM I/F)
Size Document Number
B
697HD4.SCH
Date: Thursday, July 11, 2002
Sheet
4
Rev
0.4
of 5
- 96 -