Rainbow Electronics MAX6616 - Manual (Page 18)

MAX6615/MAX6616
Dual-Channel Temperature Monitors and
Fan-Speed Controllers with Thermistor Inputs
18 ______________________________________________________________________________________
V CC
V FAN
V CC
V FAN
(5V OR 12V)
V FAN
3.0V TO 5.5V
THERMISTOR
BETATHERM 10K3A1
MAX6615
TH1
4.7k Ω
10k Ω
10k Ω
REF
100pF
100pF
TH2
1.6k Ω
1.6k Ω
SDA
SCL
OT
TACH1
TACH2
PWM2
PWM1
FAN_FAIL V CC
GND(10) GND(5) ADD0 ADD1
TO CLOCK THROTTLE OR
SYSTEM SHUTDOWN
V FAN
(5V OR 12V)
4.7k Ω
THERMISTOR
TO SMBus
MASTER
BETATHERM 10K3A1
Typical Application Circuits
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8 V
CC
SCL
SDA
PWM2
OT
TACH1
PWM1
GPIO5
TACH2
GPIO4
GPIO3
PRESET
GND
REF
ADD1
ADD0
GPIO2
GPIO1
GPIO0
16
15
14
13
9
10
11
12 FAN_FAIL
N.C. N.C.
TH1
TH2
MAX6616
QSOP
1
2
3
4
5
6
7
8
V CC
SCL
SDA
PWM2
OT
TACH1
PWM1
TOP VIEW
TACH2
GND
GND
REF
ADD1
ADD0
16
15
14
13
9
10
11
12
FAN_FAIL
TH1
TH2
MAX6615
QSOP
Pin Configurations