f75387 Feature Integration Technology Inc., f75387 Datasheet - Page 3

• Manufacturer Part Number: f75387
• Description: ?1o C Accuracy H/w Monitor Ic With Automatic Fan Speed Control
• Manufacturer: Feature Integration Technology Inc.

1. GENERAL DESCRIPTION .........................................................................................................................................................4
2. FEATURES ....................................................................................................................................................................................4
3. KEY SPECIFICATIONS ..............................................................................................................................................................5
4. PIN CONFIGURATION...............................................................................................................................................................5
5. PIN DESCRIPTION......................................................................................................................................................................5
6. FUNCTION DESCRIPTION .......................................................................................................................................................7
7. PCB LAYOUT GUIDE................................................................................................................................................................17
8. REGISTER DESCRIPTION ......................................................................................................................................................18
Table of Contents
5.1.
5.2.
5.3.
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
6.8.
6.9.
6.10.
6.11.
F
F
PWMOUT D
6.12.
6.13.
T
V
F
6.14.
8.1.
AN SPEED CONTROL
AN SPEED CONTROL MECHANISM
AN
EMPERATURE
OLTAGE
.............................................................................................................................................................................................16
P
M
A
G
A
A
T
T
T
M
M
ADC N
O
F
FAN_F
SMI# ............................................................................................................................................................................15
VOLT_FAULT# (V
C
....................................................................................................................................................................................16
AN
OWER
YPICAL OPERATING CHARACTERISTIC
EMPERATURE MONITORING
EMPERATURE
ONFIGURATION
LERT
ENERAL
NALOG
CCESS
VER
ONITORING
ONITOR
ONITOR
UTY
S
PEED
............................................................................................................................................................................15
T
S
AULT
OISE
P
EMPERATURE
-
IGNALS AND
I
CYCLE OPERATING PROCESS
IN
NTERFACE AND
I
D
NPUTS
T
T
M
.....................................................................................................................................................................6
EMPERATURE FROM THERMISTOR
EMPERATURE FROM THERMAL DIODE
...................................................................................................................................................................12
ESCRIPTION
#................................................................................................................................................................15
F
I
ONITORING AND
ILTERING
TEMS AND
M
.............................................................................................................................................................7
R
EASUREMENT
EGISTER
OLTAGE
O
S
IGNAL
THERS
.................................................................................................................................................11
..................................................................................................................................................7
...............................................................................................................................................13
P
F
OWER
AN
 I
F
...........................................................................................................................................9
AULT
.........................................................................................................................................6
(OVT#)..........................................................................................................................11
S
C
PEED
M
NDEX
ONTROL
O
ACHINE
N
S
C
IGNAL
C
...........................................................................................................................14
00
ONFIGURATION
...........................................................................................................................9
ONTROL
H
......................................................................................................................12
....................................................................................................................10
....................................................................................................................18
).................................................................................................................17
...............................................................................................................10
.............................................................................................................6
1
.........................................................................................................11
...................................................................................................8
July, 2007
F75387
0.27P