MIC38HC42/3/4/5
Micrel, Inc.
Typical Characteristics
Oscillator Frequency
MIC38C/HC42/43 Output Dead
Time vs. Oscillator Frequency
Oscillator Discharge
Configuration
Current vs. Temperature
100
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
100
200pF
VDD = 15V
470pF
1nF
1.8nF
4.7nF
10nF
10
10
200pF
4.7nF
10nF
470pF
1nF
VDD = 15V
V
OSC = 2V
VDD = 15V
18nF
1
1
1x10
4
5
6
-60 -30
0
30 60 90 120 150
4
5
6
1x10
1x10
1x10
1x10
1x10
TEMPERATURE (°C)
FREQUENCY (Hz)
OSCILLATOR FREQUENCY (Hz)
Current Sense Amplifier
vs. Error Amplifier Output
Short-Circuit Reference
MIC38C4x
Current vs. Temperature
Output Waveform
1.2
1.0
0.8
0.6
0.4
0.2
0.0
120
100
80
60
40
20
0
25
20
15
10
5
125°C
25°C
0
-5
-50°C
VD = 15V
L = 1nF
VDD = 15V
-10
-15
C
0
2
4
6
8
-60 -30
0
30 60 90 120 150
0.0
0.2
0.4
0.6
0.8
1.0
ERROR AMPLIFIER OUTPUT (V)
TEMPERATURE (°C)
TIME (µs)
M9999-042205
6
April 2005
MICREL [ MICREL SEMICONDUCTOR ]
