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零件编号
产品描述 (功能)
MIC3838 查看數據表(PDF) - Master Instrument Corporation
零件编号
产品描述 (功能)
生产厂家
MIC3838
Flexible Push-Pull PWM Controller
Master Instrument Corporation
MIC3838 Datasheet PDF : 11 Pages
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MIC3838/3839
Typical Characteristics
MIC3838
I
DD
Current
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
0 2 4 6 8 10 12 14
V
DD
(V)
1.400
MIC3839 I
DD
Current
vs. Temperature
1.300
V
IN
= 10V
1.200
1.100
V
IN
= 5V
1.000
TEMPERATURE (
°
C)
RC Pin Resistance
vs. Deadtime
89
88
87
86
85
84
83
RESISTANCE (k
Ω
)
MIC3839 Oscillator Variation
0.4
vs. V
DD
0.35
0.3
0.25
0.2
0.15
0.1
0.05
OPERATING
0
-0.05
-0.10
2 4 6 8 10 12 14
V
DD
(V)
MIC3838/3839
MIC3839
I
DD
Current
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0
0 2 4 6 8 10 12 14
V
DD
(V)
Oscillator Frequency
vs. RC Values
1M
100k
C = 100pF
V
DD
= 10V
C = 220pF
C = 270pF
C = 330pF
C = 470pF
C = 680pF
C = 1000pF
10k
0
50k 100k 150k
RESISTANCE (k
Ω
)
200k
MIC3838 Oscillator Variation
vs. Temperature
1.50
1.00
V
IN
= 10V
0.50
0.00
-0.50
-1.00
TEMPERATURE (
°
C)
MIC3839 Error Amplifier
Reference vs. V
DD
2.04
2.02
2.00
1.98
1.96
1.94
1.92
4 6 8 10 12 14 16 18
V
DD
(V)
6
Micrel
1.260
MIC3838 I
DD
Current
vs. Temperature
1.250
1.240
1.230
V
IN
= 10V
1.220
TEMPERATURE (
°
C)
RC Pin Capacitance
vs. Deadtime
200
175
150
125
100
75
50
CAPACITANCE (pF)
MIC3839 % Oscillator
Variation vs. Temperature
2.000
1.500
1.000
V
IN
= 5V
0.500
0.000
V
IN
= 10V
-0.500
-1.000
-1.500
TEMPERATURE (
°
C)
MIC3838 Error Amplifier
Reference vs. Temperature
2.040
2.030
2.020
V
IN
= 10V
2.010
2.000
1.990
TEMPERATURE (
°
C)
April 2005
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