EMC2303-1-KZ-TR SMSC, EMC2303-1-KZ-TR Datasheet - Page 80

• Manufacturer Part Number: EMC2303-1-KZ-TR
• Description: Industrial Temperature Sensors RPM B Fan Controller w/HW Thermal Shutdwn
• Manufacturer: SMSC

Specifications of EMC2303-1-KZ-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Appendix B Example Fan Circuits
Revision 0.32 (06-23-08)
PWMx
The following figures show examples of circuitry on the board for the PWM outputs, tachometer inputs,
and remote diodes. Figure B.1, "Fan Drive Circuitry (Apply to PWM Driving Two Fans)" shows how the
part can be used to control four fans by connecting two fans to one PWM output.
Note: These examples represent the minimum required components. Some designs may require
additional components.
Figure B.1 Fan Drive Circuitry (Apply to PWM Driving Two Fans)
3.3V
1k
2.2k
3.3V
DATASHEET
MMBT3904
80
Fan Control Device with High Frequency PWM and Temperature Monitors
MMBT2222
MMBT2222
M
M
Fan1
Fan2
SMSC EMC2300
12V
Datasheet