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參數(shù)資料
| 型號： | MIC3832BWM |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Current-Fed PWM Controllers |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.300 INCH, SOIC-16 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 100K |
| 代理商： | MIC3832BWM |
April 1998
4-139
MIC3832/3833
Typical Characteristics
Micrel
4.94
4.96
4.98
5.00
5.02
5.04
5.06
-40
0
40
80
120
160
R
JUNCTION TEMPERATURE (
°
C)
Reference Voltage vs.
Junction Temperature
15.6
10.0
15.8
16.0
16.2
16.4
-40
0
40
80
120
160
U
9.2
9.4
9.6
9.8
-40
0
40
80
120
160
JUNCTION TEMPERATURE (
°
C)
MIC3832 Undervoltage
Lockout vs. Junct. Temp.
ON
OFF
10
100
1000
1
10
100
F
TIMING RESISTANCE (k
)
Oscillator Frequency
vs. Timing Resistance
85pF
550pF
1.1nF
2.2nF
10.2nF
Note 4
0.1
1
10
1
10
T
μ
s
TIMING CAPACITOR (nF)
Discharge Time vs.
Timing Capacitance
-40
°
C
125
°
C
25
°
C
2
3
4
5 6
8
0
-40
1
2
3
4
5
0
40
80
120
160
D
JUNCTION TEMPERATURE (
°
C)
Oscillator Discharge
Current vs. Junct. Temp.
0
10
20
30
40
50
60
70
80
90
100
0
1
2
3
4
5
M
MDC CONTROL VOLTAGE (V)
Voltage-Mode Max. Duty
Cycle vs. MDC Voltage
Note 5
0
1
2
3
4
5
0
0.2
0.4
0.6
0.8
1
O
OUTPUT SINK CURRENT (A)
Output Saturation Voltage
vs. Output Sink Current
-55
°
C
125
°
C
25
°
C
0
1
2
3
0
1
2
3
4
5
6
C
ERROR AMP OUTPUT (V)
Current Sense Threshold
vs. Error Amplifier Output
25
°
C
125
°
C
-55
°
C
V
II
= 1
V
II
= 3
V
II
= 2
-25
0
25
50
75
100
-180
1
8
-135
-90
-45
0
45
1
1
1
2
1
3
FREQUENCY (Hz)
1
4
1
5
1
6
1
7
A
P
°
)
AMPLITUDE
PHASE
Error Amplifier Open-Loop
Frequency Response
7.0
7.5
8.0
8.5
9.0
-40
0
40
80
120
160
R
JUNCTION TEMPERATURE (
°
C)
MIC3833 Undervoltage
Lockout vs. Junct. Temp.
ON
OFF
0
1
2
3
4
5
0
OUTPUT SOURCE CURRENT (A)
0.2
0.4
0.6
0.8
1
O
Output Voltage Drop vs.
Output Source Current
125
°
C
25
°
C
-55
°
C
Note 4:
CMR (pin 12) connected to C
T
(pin 15).
CMR (pin 12) connected to C
(pin 15). MDC voltage measured
at MDC/SS (pin 11).
C
T
= 1nF, R
T
= 10k
.
Note 5:
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