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TC646EPA Datenblatt(PDF) 4 Page - Microchip Technology

Teilenummer TC646EPA
Bauteilbeschribung  PWM Fan Speed Controller with Auto-Shutdown and FanSense??Technology
PDF  28 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC646EPA Datenblatt(HTML) 4 Page - Microchip Technology

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TC646
DS21446C-page 4
 2002 Microchip Technology Inc.
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,
See Figure 5-11
VHYST
Hysteresis on VSHDN, VREL
—0.01 x VDD
—V
VHAS
Hysteresis on Auto-shutdown
Comparator
—70
—
mV
Pulse Width Modulator
FOSC
PWM Frequency
26
30
34
Hz
CF = 1.0 µF
DC ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Unless otherwise specified, TMIN ≤ TA ≤ TMAX, VDD = 3.0V to 5.5V
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
Note 1: Ensured by design, not tested.



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