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MIC38C42 Datasheet(PDF) 6 Page - Micrel Semiconductor

Part No. MIC38C42
Description  BiCMOS Current-Mode PWM Controllers
Download  11 Pages
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC38C42 Datasheet(HTML) 6 Page - Micrel Semiconductor

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MIC38C42/3/4/5
Micrel, Inc.
M9999-072805
6
July 2005
Typical Characteristics
1
10
100
1x104
1x105
5x105
OSCILLATOR FREQUENCY (Hz)
Oscillator Frequency
Configuration
10nF
4.7nF
1nF
470pF
200pF
1.8nF
VDD = 15V
1
10
100
1x104
1x105
1x106
FREQUENCY (Hz)
MIC38C42/43 Output Dead Time
vs. Oscillator Frequency
VDD = 15V
10nF
4.7nF
200pF
470pF
18nF
1nF
7.0
7.2
7.4
7.6
7.8
8.0
8.2
8.4
8.6
8.8
9.0
-60 -30 0
30 60 90 120 150
TEMPERATURE (°C)
Oscillator Discharge
Current vs. Temperature
VDD = 15V
VOSC = 2V
0
0.2
0.4
0.6
0.8
1.0
1.2
0
2
4
6
8
ERROR AMPLIFIER OUTPUT (V)
Current Sense Amplifier
vs. Error Amplifier Output
-50°C
25°C
125°C
0
20
40
60
80
100
120
-60 -30 0
30 60 90 120 150
TEMPERATURE (°C)
Short-Circuit Reference
Current vs. Temperature
VDD = 15V
-15
-10
-5
0
5
10
15
20
25
0.0
0.2
0.4
0.6
0.8
1.0
TIME (µs)
MIC38C4x
Output Waveform
VD = 15V
CL = 1nF


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