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UC1724 Scheda tecnica(PDF) 2 Page - Texas Instruments

Il numero della parte UC1724
Spiegazioni elettronici  Isolated Drive Transmitter
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UC1724 Scheda tecnica(HTML) 2 Page - Texas Instruments

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UC1724
UC2724
UC3724
CONNECTION DIAGRAMS
DIL-8 (Top View)
J Or N Package
SOIC-16 (Top View)
DW Package
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, VCC = 20V, RT = 4.3kΩ, CT = 1000pF, no load on any
output and these specifications apply for: –55
oC < T
A < 125
oC for the UC1724, –25oC < T
A < 85
oC for the UC2724, and
0
oC < TA < 70oC for the UC3724. T
A=TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Under-Voltage Lockout
Start-Up Threshold
VIN Rising
7.75
9.5
V
Threshold Hysteresis
0.4
1.0
1.5
V
Retriggerable One-Shot
Initial Accuracy
TJ = 25°C
1.54
1.9
2.25
µs
Temperature Stability
Over Operating TJ
1.0
2.9
µs
Voltage Stability
VIN = 10 to 35V
0.2
0.5
%/V
Operating Frequency
LLOAD = 1.4mH
100
150
200
kHz
Minimum Pulse Width
RT = 2k CT = 300pF
100
500
1200
ns
Operating Frequency
RT = 2k CT = 300pF LLOAD = 1.4mH
500
750
1100
kHz
ABSOLUTE MAXIMUM RATINGS
Supply Voltage VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Source/Sink Current (Pulsed) . . . . . . . . . . . . . . . . . . . . . . . . 1A
Source/Sink Current (Continuous) . . . . . . . . . . . . . . . . . . . 0.5A
Ouput Voltage (Pins 4, 6). . . . . . . . . . . . . . . –0.3 to (VIN +0.3)V
PHI, RT, and CT inputs (Pins 1, 7, and 8) . . . . . . . . . –0.3 to 6V
Operating Junction Temperature (Note 2) . . . . . . . . . . . . 150°C
Storage Temperature Range . . . . . . . . . . . . . . –65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C
Note 1: All voltages are with respect to GND (Pin 2); all cur-
rents are positive into, negative out of part.
Note 2: Consult Unitrode Integrated Circuit Databook for ther-
mal limitations and considerations of package.
Note 3: Pin numbers refer to DIL-8 packages.
RECOMMENDED OPERATION CONDITIONS
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +9V to +35V
Sink/Source Load Current (each output) . . . . . . . . . 0 to 500mA
Timing Resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . 2kW to 10kW
Timing Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . 300pF to 3nF
Operating Temperature Range (UC1724) . . . –55°C<TA<125°C
Operating Temperature Range (UC3724) . . . . . . 0°C<TA<70°C
Note 4: Range over which the device is functional and
parameter limits are guaranteed.
TEMPERATURE RANGE
PACKAGE
UC1724J
–55°C to +125°C
CDIP
UC2724DW
–25°C to +85°C
SOIC-Wide
UC2724N
PDIP
UC3724DW
0°C to +70°C
SOIC-Wide
UC3724N
PDIP
ORDERING INFORMATION


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