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UCC28C43DGKRG4 Datasheet(PDF) 11 Page - Texas Instruments

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Part No. UCC28C43DGKRG4
Description  BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
Download  32 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

UCC28C43DGKRG4 Datasheet(HTML) 11 Page - Texas Instruments

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UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010
11
www.ti.com
TYPICAL CHARACTERISTICS
1k
10 k
100 k
1 k
10 k
100 k
1M
10 M
Figure 6
OSCILLATOR FREQUENCY
vs
TIMING RESISTANCE AND CAPACITANCE
CT = 220 pF
CT = 4.7 nF
CT = 2.2 nF
CT = 1 nF
CT = 470 pF
RT -- Timing Resistance -- Ω
Figure 7
TJ -- Temperature -- °C
9.0
9.5
8.0
7.5
7.0
8.5
--50
--25
0
25
50
75
100
125
OSCILLATOR DISCHARGE CURRENT
vs
TEMPERATURE
Figure 8
f -- Frequency -- Hz
ERROR AMPLIFIER
FREQUENCY RESPONSE
1
10
100
10 k 100 k 1 M
10 M
1k
10
0
20
200
180
140
120
80
40
0
60
100
160
20
30
40
50
60
70
80
90
100
GAIN
PHASE
MARGIN
Figure 9
COMP to CS OFFSET VOLTAGE (with CS = 0)
vs
TEMPERATURE
TJ -- Temperature -- °C
0.2
1.8
1.4
1.2
0.8
0.4
0.0
0.6
1.0
1.6
--50
--25
0
25
50
75
100
125


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