MAX6639(2005) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX6639
(Rev.:2005)
(Rev.:2005)
Maxim Integrated
MAX6639 Datasheet PDF : 22 Pages
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2-Channel Temperature Monitor with Dual,
Automatic, PWM Fan-Speed Controller
(VCC = 3.3V, TA = +25°C.)
Typical Operating Characteristics
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
10
9
8
7
6
5
4
3
2
1
0
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
LOCAL TEMPERATURE ERROR
vs. DIE TEMPERATURE
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
0
25
50
75 100 125
TEMPERATURE (°C)
REMOTE TEMPERATURE ERROR
vs. COMMON-MODE NOISE FREQUENCY
2.0
VIN = AC-COUPLED TO DXP AND DXN
1.5 VIN = 100mVP-P SQUARE WAVE
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
OPERATING SUPPLY CURRENT
vs. SUPPLY VOLTAGE
800
700
600
500
400
300
200
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
REMOTE TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
2.0
VIN = 250mVP-P SQUARE WAVE APPLIED TO
1.5 VCC WITH NO BYPASS CAPACITOR
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
10
100
1k
10k
100k
FREQUENCY (Hz)
REMOTE TEMPERATURE ERROR
vs. DIFFERENTIAL NOISE FREQUENCY
2.0
VIN = AC-COUPLED TO DXP
1.5 VIN = 100mVP-P SQUARE WAVE
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
10
100
1k
10k
100k
FREQUENCY (Hz)
REMOTE TEMPERATURE ERROR
vs. REMOTE-DIODE TEMPERATURE
2
1
0
-1
FAIRCHILD 2N3906
-2
0
25
50
75
100 125
TEMPERATURE (°C)
LOCAL TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
2.0
VIN = 250mVP-P SQUARE WAVE APPLIED TO
1.5 VCC WITH NO BYPASS CAPACITOR
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
1
10 100 1k 10k 100k
FREQUENCY (Hz)
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
2.0
1.0
0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
0.1
1
10
100
DXP-DXN CAPACITANCE (nF)
4 _______________________________________________________________________________________
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