EMC6D102_06 SMSC [SMSC Corporation], EMC6D102_06 Datasheet - Page 86
EMC6D102_06
Manufacturer Part Number
EMC6D102_06
Description
Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.EMC6D102_06.pdf
(86 pages)
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Revision 0.4 (06-15-06)
Notes:
1. 2.2nF cap is optional and should be placed close to the EMC6D102 if used.
2. The voltage at PWM3 must be at least 2.0V to avoid triggering Address Enable.
3. The Remote Diode + and Remote Diode - tracks should be kept close together, in parallel with
grounded guard tracks on each side. Using wide tracks will help to minimize inductance and
reduce noise pickup. A 10 mil track minimum width and spacing is recommended. See Figure B.5,
"Suggested Minimum Track Width and Spacing".
Remote Diode +
Remote Diode -
Figure B.5 Suggested Minimum Track Width and Spacing
Figure B.3 Fan Tachometer Circuitry (Apply to Each Fan)
Figure B.4 Remote Diode (Apply to Remote2 Lines)
Note: For fans controlled directly by a PWM, it is suggested to implement
the optional diode (D1) to protect the tachometer input from large voltage
spikes generated by the fan.
from Fan
Output
Tach
Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
GND
GND
D+
2.2nF
D-
DATASHEET
IN4148
D1
86
3.3V
10k
External Temperature
TACH
Input
10 mil.
10 mil.
10 mil.
10 mil.
10 mil.
10 mil.
10 mil.
Sensing Diode
(MMBT3904)
SMSC EMC6D102
Datasheet
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