TC646BEPA713 datasheet(5/36 Pages) MICROCHIP

No de pièce	TC646BEPA713

Description	PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense??Technology for Fault Detection

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Fabricant	MICROCHIP [Microchip Technology]

Site Internet	http://www.microchip.com

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 2003 Microchip Technology Inc.

DS21755B-page 5

TC646B/TC648B/TC649B

TIMING SPECIFICATIONS

FIGURE 1-1:

TC646B/TC648B/TC649B Start-up Timing.

FIGURE 1-2:

Fan Fault Occurrence (TC646B and TC649B).

FIGURE 1-3:

Recovery From Fan Fault (TC646B and TC649B).

VOUT

FAULT / OTF

SENSE

tSTARTUP

(TC646B and TC649B)

VOUT

FAULT

SENSE

33.3 msec (CF = 1 µF)

tMP

tDIAG

VOUT

FAULT

SENSE

Minimum 16 pulses

tMP

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