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TC648EOA Scheda tecnica(PDF) 3 Page - Microchip Technology

Il numero della parte TC648EOA
Spiegazioni elettronici  Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

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 2002 Microchip Technology Inc.
DS21448C-page 3
TC648
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage ......................................................... 6V
Input Voltage, Any Pin... (GND – 0.3V) to (VDD + 0.3V)
Package Thermal Resistance:
PDIP (RθJA).............................................125°C/W
SOIC (RθJA) ............................................155°C/W
MSOP (RθJA) ..........................................200°C/W
Specified Temperature Range ........... -40°C to +125°C
Storage Temperature Range.............. -65°C to +150°C
*Stresses above those listed under "Absolute Maximum Rat-
ings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at
these or any other conditions above those indicated in the
operation sections of the specifications is not implied. Expo-
sure to absolute maximum rating conditions for extended peri-
ods may affect device reliability.
DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise specified, TMIN ≤ TA ≤ TMAX, VDD = 3.0V to 5.5V
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VDD
Supply Voltage
3.0
5.5
V
IDD
Supply Current, Operating
0.5
1.0
mA
Pins 6, 7 Open,
CF = 1 µF, VIN = VC(MAX)
IDD(SHDN)
Supply Current, Shutdown/
Auto-shutdown Mode
25
µA
Pins 6, 7 Open;
Note 1
CF =1 µF, VIN = 0.35V
IIN
VIN, VAS Input Leakage
-1.0
+1.0
µA
Note 1
VOUT Output
tR
VOUT Rise Time
50
µsec IOH = 5 mA, Note 1
tF
VOUT Fall Time
50
µsec IOL = 1 mA, Note 1
IOL
Sink Current at VOUT Output
1.0
mA
VOL = 10% of VDD
IOH
Source Current at VOUT
Output
5.0
mA
VOH = 80% of VDD
SENSE Input
VTH(SENSE)
SENSE Input Threshold
Voltage with Respect to GND
50
70
90
mV
Note 1
OTF Output
VOL
Output Low Voltage
0.3
V
IOL = 2.5 mA
VIN, VAS Inputs
VC(MAX),VOTF Voltage at VIN for 100% Duty
Cycle and Overtemp. Fault
2.5
2.65
2.8
V
VC(SPAN)
VC(MAX) - VC(MIN)
1.3
1.4
1.5
V
VAS
Auto-shutdown Threshold
VC(MAX) ~
VC(SPAN)
VC(MAX)
V
VSHDN
Voltage Applied to VIN to
Ensure Reset/Shutdown
——
VDD x 0.13
V
VREL
Voltage Applied to VIN to
Release Reset Mode
VDD x 0.19
V
VDD = 5V
VHYST
Hysteresis on VSHDN, VREL
—0.01 x VDD
—V
VHAS
Hysteresis on Auto-shutdown
Comparator
—70
mV
Note 1: Ensured by design, not tested.


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