f75375 Feature Integration Technology Inc., f75375 Datasheet - Page 55

• Manufacturer Part Number: f75375
• Description: Fintek Hardware Monitor Ic Datasheet
• Manufacturer: Feature Integration Technology Inc.

11 Application Circuit
ADDRESS SELECT
PWMOUT1
R1 ON
R1 OFF
R28 optional
R1
R28
ADDRESS=0x5Ch
ADDRESS=0X5Ah
100K
DAC Voltage output
PWMOUT1
Fintek
10K
VCC3V
SDATA
SCLK
R19
3.9K
R26 330
R3
4.7K
3
2
R4
4.7K
12V
+
-
VCC3V
R5
4.7K
U2A
R6
4.7K
R17 10K
Linear FAN CONTROL
R21
R22 4.7K
1
LM358
NDS0605/SOT
Q3
2N7002
R7
4.7K
R8
4.7K
4.7K
PWM FAN CONTROL
SDATA
SDATA
SDATA
SDATA
PWMOUT1
C6
47u
SCLK
SCLK
SCLK
SCLK
FANIN1
C4
47u
12V
2N3906
Q2
JP2
CON3
JP1
CON3
1
2
3
4
5
6
7
8
Y 1
OSC14
3
2
1
Q1
3
2
1
1N4148
FANIN1
FANIN2/GPIO0
PWMOUT1/DACOUT1/ADDR_TRAP
PWMOUT2/DACOUT2/GPIO1
FAN_FAULT#/SMI#/GPIO2
VOLT_FAULT#/OVT#/GPIO3/EXT. CLOCK
SCLK
SDATA
U1
1N4148
OUT
D2
D1
8
C7
Y1 ON
Y1 OFF
C5
F75375S
R24
4.7K
R25 27K
0.1u
Feature Integration Technology Inc.
R14
4.7K
R16 27K
0.1u
EXT_CLK
R27
10K
R18
10K
Ext.Clock=48MHz
Internal Clock
1
FANIN1
FANIN1
F75375S/F75375SG
VREF
VIN1
VIN2
VIN3
GND
VCC
VT1
VT2
16
15
14
13
12
11
10
9
Title
Size
Date:
T1
T2
VREF
VIN1
VIN2
VIN3
A
VCC3V
Feature Integration Technology Inc.
Document Number
C2
0.1U
F75375S
C3
4.7U
VIN1,VIN2,VIN3 SIGNALS BEST INPUT LEVEL IS ABOUT 1V
TEMPERATURE MONITOR (Thermal Diode)
TEMPERATURE MONITOR (Thermistor)
VREF
VREF
VREF
VIN1
VIN2
VIN3
T1
R20
T2
R23
T1
R2
VOLTAGE MONITOR
10K 1%
10K 1%
20K 1%
R9
R10
R11
R12
R13
R15
Sheet
100K
100K
150K
100K
47K
100K
10K THERMISTOR
RT2
10K THERMISTOR
RT1
D+
VDD1
VDD2
VDD3
1
C1
3300p
D-
(2.0V)
(2.5V)
(1.5V)
of
1
Rev
0.32
July 2007
V0.26P