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UC2844NG4 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. UC2844NG4
Description  CURRENT MODE PWM CONTROLLER
Download  28 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

UC2844NG4 Datasheet(HTML) 6 Page - Texas Instruments

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OSCILLATOR SECTION
8
4
5
VREF
RT/CT
GROUND
RT
CT
For RT> 5 K f ~
1.72
RTCT
30
10
3
1
0.3
1
2.2
4.7
10
22
47
100
CT − nF
Deadtime vs CT (RT >5 kW)
100
30
10
3
100
1 k
10 k
100 k
1 M
f − Frequency − Hz
Timing Resistance vs Frequency
OUTPUT SATURATION CHARACTERISTICS
4
3
2
1
0
.01
.02
.03 .04 .05
.07 .1
.2
.3 .4 .5
.7
1
SINK SAT (VOL)
SOURCE SAT
(VCC − VOH)
VCC = 15 V
TA = 25°C
TA = −55°C
Output Current, Source or Sink − A
ERROR AMPLIFIER OPEN-LOOP FREQUENCY RESPONSE
80
60
40
20
0
0
−45
−90
−135
−180
Av
θ
10
100
1 k
10 k
100 k
1 M
10 M
f − Frequency − Hz
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
SLUS223C – APRIL 1997 – REVISED JUNE 2007
6
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