Datasheet

MAX6615/MAX6616
Dual-Channel Temperature Monitors and
Fan-Speed Controllers with Thermistor Inputs
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
GPIO SINK CURRENT
vs. SUPPLY VOLTAGE
MAX6615/6 toc04
V
CC
(V)
I
GPIO_
(mA)
5.04.54.03.5
20
25
30
35
40
45
50
15
3.0 5.5
V
GPIO_
= 0.4V
GPIO OUTPUT VOLTAGE
vs. GPIO SINK CURRENT
MAX6615/6 toc05
I
GPIO_
(mA)
V
GPIO_
(V)
706040 5020 3010
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0
080
V
CC
= 3V
V
CC
= 5V
-5
-2
-3
-4
-1
0
1
2
3
4
5
05025 75 100 125
PWM FREQUENCY
vs. DIE TEMPERATURE
MAX6615/6 toc06
DIE TEMPERATURE (°C)
FREQUENCY SHIFT (Hz)
NORMALIZED AT T
A
= +25°C
-0.04
0
-0.02
0.04
0.02
0.08
0.06
0.10
3.0 4.03.5 4.5 5.0 5.5
PWM FREQUENCY
vs. SUPPLY VOLTAGE
MAX6615/6 toc07
V
CC
(V)
FREQUENCY SHIFT (Hz)
NORMALIZED AT V
CC
= 5.0V