MAX31785 Просмотр технического описания (PDF) - Maxim Integrated
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MAX31785 Datasheet PDF : 48 Pages
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6-Channel Intelligent Fan Controller
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(NO PWM SWITCHING)
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
VDD (V)
WEAK PULLUP VOLTAGE
vs. TIME DURING POWER-UP
MAX31785 toc03
VDD
0V
PWMO
0V
2V/div
NO LOAD
CONNECTED
TO PWM
Typical Operating Characteristics
SUPPLY CURRENT vs. TEMPERATURE
(VDD = 3.3V, NO PWM SWITCHING)
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
IDD vs. TIME DURING A NONVOLATILE LOG WRITE
(TA = +25°C, VDD = 3.3V)
MAX31785 toc04
1mA/div
0mA
2ms/div
FAN POWER-ON SEQUENCING
MAX31785 toc05
CONTROL
0V
0V
5V/div
0V
PWM0
PWM1
PWM2
0V
100ms/div
2ms/div
9
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