TC647 Microchip, TC647 Datasheet - Page 2

• Manufacturer Part Number: TC647
• Description: PWM Fan Speed Controller
• Manufacturer: Microchip

TC647
Functional Block Diagram
DS21447C-page 2
GND
V
MIN
V
C
IN
F
V
SHDN
TC647
+
–
+
–
Generator
Clock
+
–
70mV (typ.)
SHDN
–
+
3 x T
Start-up
Missing
Detect.
Control
Pulse
Timer
Timer
Logic
PWM
10k
FAULT
SENSE
2002 Microchip Technology Inc.
V
V
OUT
DD