Datasheet

MAX6653/MAX6663/MAX6664
Temperature Monitors and
PWM Fan Controllers
4 _______________________________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
REMOTE TEMPERATURE ERROR
vs. REMOTE-DIODE TEMPERATURE
MAX6653 toc03
REMOTE-DIODE TEMPERATURE (
°
C)
TEMPERATURE ERROR (°C)
1109565 80-10 5 20 35 50-25-40 125
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
LOCAL TEMPERATURE ERROR
vs. DIE TEMPERATURE
MAX6653 toc04
DIE TEMPERATURE (
°
C)
LOCAL TEMPERATURE ERROR (°C)
1109565 80-10 5 20 35 50-25-40 125
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
10
0
0.001 0.01 0.1 1 10 100
REMOTE TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
2
MAX6653 toc05
POWER-SUPPLY NOISE FREQUENCY (MHz)
REMOTE TEMPERATURE ERROR (°C)
4
6
8
1
3
5
7
9
100mV
P-P
250mV
P-P
7
-2
0.001 0.01 0.1 1 10 100
LOCAL TEMPERATURE ERROR
vs. POWER-SUPPLY NOISE FREQUENCY
-1
0
MAX6653 toc06
POWER-SUPPLY NOISE FREQUENCY (MHz)
REMOTE TEMPERATURE ERROR (°C)
2
1
5
6
4
3
100mV
P-P
250mV
P-P
TEMPERATURE ERROR
vs. COMMON-MODE NOISE FREQUENCY
COMMON-MODE NOISE FREQUENCY (MHz)
0.0001 0.1 1 100.001 0.01 100
TEMPERATURE ERROR (°C)
12
-2
0
2
4
6
10
8
MAX6653 toc07
40mV
P-P
20mV
P-P
8
7
6
5
4
3
2
1
0
0.01 1 100.1 100
TEMPERATURE ERROR
vs. DIFFERENTIAL-MODE NOISE FREQUENCY
MAX6653 toc08
DIFFERENTIAL-MODE NOISE FREQUENCY (MHz)
TEMPERATURE ERROR (°C)
30mV
P-P
20mV
P-P
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
MAX6653 toc09
DXP-DXN CAPACITANCE (nF)
TEMPERATURE ERROR (°C)
1
-5
-4
-3
-2
-1
0
1 10 100
2.0
3.0
2.5
4.0
3.5
4.5
5.0
3.0 5.5
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX6653 toc01
SUPPLY VOLTAGE (V)
STANDBY SUPPLY CURRENT (µA)
4.03.5 4.5 5.0
AVERAGE OPERATING SUPPLY CURRENT
vs. CONVERSION RATE
MAX6653 toc02
CONVERSION RATE (Hz)
SUPPLY CURRENT (µA)
321
50
100
150
200
250
300
350
400
450
500
0
04