TC642B View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC642B

PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense™ Technology for Fault Detection

Microchip Technology 

TIMING SPECIFICATIONS

VOUT

tSTARTUP

FAULT

TC642B/TC647B

SENSE

FIGURE 1-1:

TC642B/TC647B Start-Up Timing.

VOUT

33.3 msec (CF = 1 µF)

tMP

tDIAG

tMP

FAULT

SENSE

FIGURE 1-2:

Fan Fault Occurrence.

tMP

VOUT

FAULT

SENSE

FIGURE 1-3:

Minimum 16 pulses

Recovery From Fan Fault.

 2002-2013 Microchip Technology Inc.

DS21756C-page 5

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