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Номер в каталоге
Компоненты Описание
MIC3808 Просмотр технического описания (PDF) - Micrel
Номер в каталоге
Компоненты Описание
производитель
MIC3808
Push-Pull PWM Controller
Micrel
MIC3808 Datasheet PDF : 11 Pages
1
2
3
4
5
6
7
8
9
10
MIC3808/3809
Typical Characteristics
MIC3808 V
DD
vs. I
DD
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
00
5
10
15
V
DD
(V)
MIC3809 Oscillator
Frequency Variation
3
vs. Temperature
V
DD
= 5V
2
1
0
V
DD
= 10V
-1
-2
--340
-20 0 20 40 60 80 100120140
TEMPERATURE (
°
C)
RC Pin Resistance
vs. Deadtime
89
88
87
86
85
84
83
RESISTANCE (k
Ω
)
MIC3808 Current Limit
Threshold vs. V
DD
0.501
0.499
0.497
0.495
0.493
0.491
0.4898
9 10 11 12 13 14 15 16
V
DD
(V)
MIC3808/3809
MIC3809 V
DD
7
vs. I
DD
6
5
4
3
2
1
00
2 4 6 8 10 12 14 16
V
DD
(V)
1M
100k
Frequency
vs. RC Values
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
MIC3809 V
REFERENCE
vs. V
DD
2.05
2.03
2.01
1.99
1.97
1.95
1.93
1.91
1.89
1.87
1.854
6 8 10 12 14 16 18
V
DD
(V)
MIC3809 Current Limit
Threshold vs. V
DD
0.505
0.503
0.501
0.499
0.497
0.495
0.4934
6 8 10 12 14 16
V
DD
(V)
6
Micrel
MIC3809 Oscillator Variation
vs. V
DD
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.40
2 4 6 8 10 12 14
V
DD
(V)
RC Pin Capacitance
vs. Deadtime
200
175
150
125
100
75
50
CAPACITANCE (pF)
2.015
2.010
2.005
2.000
1.995
1.990
1.985
1.980
1.975
1.9708
MIC3808 V
REFERENCE
vs. V
DD
9 10 11 12 13 14 15 16
V
DD
(V)
Error Amplifier Reference
Voltage vs. Temperature
2.02
2.02
2.01
2.01
2.00
2.00
1.99
1.99
1.98
1.98
1.9-740
-20 0 20 40 60 80 100120140
TEMPERATURE (
°
C)
April 2005
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