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UC1548 Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce UC1548
Description  Primary Side PWM Controller
Download  10 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC1548 Fiches technique(HTML) 2 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS Unless otherwise stated, all specifications are over the junction temperature range of
−55°C to +125°C for the UC1548, −40°C to +85°C for the UC2548, and 0°C to +70°C for the UC3548. Test conditions are: VCC =
12V, CT = 400pF, CI = 100pF, IOFF = 100
µA, CDC = 100nF, Cvs = 100pF, and Ivs = 400µA, TA = TJ.
UC1548
UC2548
UC3548
Supply Voltage (Pin 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22V
Output Current, Source or Sink (Pin 14)
DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A
Pulse (0.5
µs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2A
Power Ground to Ground (Pin 1 to Pin 13) . . . . . . . . . . .
±0.2V
Analog Input Voltages
(Pins 3, 4, 7, 8, 12, 16) . . . . . . . . . . . . . . . . . . . . . -0.3 to 7V
Analog Input Currents, Source or Sink
(Pins 3, 4, 7, 8, 11, 12, 16) . . . . . . . . . . . . . . . . . . . . . . 1mA
Analog Output Currents, Source or Sink (Pins 5 & 10) . . . 5mA
Power Dissipation at TA = 60
°C . . . . . . . . . . . . . . . . . . . . . . . . 1W
Storage Temperature Range
. . . . . . . . . . . . . . . −65°C to +150°C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . +300
°C
CONNECTION DIAGRAMS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Real Time Current Waveform Synthesizer
Ion Amplifier
Offset Voltage
0.95
1
1.05
V
Slew Rate (Note 1)
20
25
V/
µs
lib
-2
-20
µA
IOFF Current Mirror
Input Voltage
0.95
1
1.05
V
Current Gain
0.911.1
A/A
Current Error Amplifier
AVOL
60
100
dB
Vio
12V
≤ VCC ≤ 20V, 0V ≤ VCM ≤ 5V
10
mV
lib
-0.5
-3
µA
Voh
IO =
−200µA
3.1
3.3
3.5
V
Vol
IO = 200
µA0.3
0.6
V
Source Current
VO = 1V
1.4
1.6
2.0
mA
GBW Product
f = 200kHz
5
8
MHz
Slew Rate (Note 1)
810
V/
µs
Oscillator
Frequency
TA = 25
°C
240
250
260
kHz
235
265
kHz
Notes: All voltages are with respect to ground (DIL and SOIC
pin 1). Currents are positive into the specified terminal.
Pin numbers refer to the 16 pin DIL and SOIC packages.
Consult Packaging Section of Databook for thermal
limitations and considerations of packages.
ABSOLUTE MAXIMUM RATINGS
PLCC-20 & LCC-20 (Top View)
Q & L Packages
DIL-16, SOIC-16 (Top View)
J, N, or DW Packages
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