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TC646B Datasheet(PDF) 5 Page - Microchip Technology

Part # TC646B
Description  PWM Fan Speed Controllers With Auto-Shutdown
PDF  36 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC646B Datasheet(HTML) 5 Page - Microchip Technology

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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
tMP
tDIAG
VOUT
FAULT
SENSE
Minimum 16 pulses
tMP



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