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TC642B Folha de dados(PDF) 4 Page - Microchip Technology

Nome de Peças TC642B
Descrição Electrónicos  PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense??Technology for Fault Detection
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC642B Folha de dados(HTML) 4 Page - Microchip Technology

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TC642B/TC647B
DS21756C-page 4
 2002-2013 Microchip Technology Inc.
TEMPERATURE SPECIFICATIONS
SENSE Input
SENSE Input Threshold Voltage with
Respect to GND
VTH(SENSE)
50
70
90
mV
Blanking time to ignore pulse due to
VOUT turn-on
tBLANK
—3.0
µsec
FAULT Output
Output Low Voltage
VOL
——
0.3
V
IOL = 2.5 mA
Missing Pulse Detector Timer
tMP
32/f
sec
Note 2
Start-Up Timer
tSTARTUP
32/f
sec
Note 2
Diagnostic Timer
tDIAG
3/f
sec
Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 3.0V to 5.5V
Parameters
Symbol
Min
Typ
Max
Units
Conditions
Temperature Ranges:
Specified Temperature Range
TA
-40
+85
°C
Operating Temperature Range
TA
-40
+125
°C
Storage Temperature Range
TA
-65
+150
°C
Thermal Package Resistances:
Thermal Package Resistance, 8-Pin MSOP
JA
200
°C/W
Thermal Package Resistance, 8-Pin SOIC
JA
155
°C/W
Thermal Package Resistance, 8-Pin PDIP
JA
125
°C/W
ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all limits are specified for -40°C < TA < +85°C, VDD = 3.0V to 5.5V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note
1:
Ensured by design, tested during characterization.
2:
For VDD < 3.7V, tSTARTUP and tMP timers are typically 13/f.


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