TC647B Microchip Technology Inc., TC647B Datasheet - Page 5

• Manufacturer Part Number: TC647B
• Description: Pwm Fan Speed Controllers With Minimum Fan Speed, Fan Restart And Fansense Technology For Fault Detection
• Manufacturer: Microchip Technology Inc.

TIMING SPECIFICATIONS
FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
2003 Microchip Technology Inc.
SENSE
SENSE
FAULT
FAULT
V
V
OUT
OUT
SENSE
FAULT
V
OUT
33.3 msec (C
TC642B/TC647B Start-Up Timing.
Fan Fault Occurrence.
Recovery From Fan Fault.
F
= 1 µF)
t
STARTUP
Minimum 16 pulses
t
MP
t
MP
t
DIAG
TC642B/TC647B
t
MP
DS21756B-page 5