emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 30

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emc2105

Manufacturer Part Number
emc2105
Description
Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
Manufacturer
Standard Microsystems Corp.
Datasheet
Revision 1.74 (05-08-08)
Maintain Fan Drive
Figure 5.4 RPM based Fan Speed Control Algorithm
Reduce Fan Drive
Yes
Yes
Measure Fan Speed
Set TACH Target
DATASHEET
No
Reading =
Reading <
Required
Spin Up
Target?
Target?
Count
TACH
TACH
TACH
TACH
RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
?
30
No
Increase Fan Drive
Yes
No
Perform Spin Up
Routine
Ramp Rate Control
SMSC EMC2105
Datasheet

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