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參數資料
| 型號： | MAX828 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125 |
| 中文描述： | 開關電容電壓反相器 |
| 文件頁數： | 15/18頁 |
| 文件大小： | 158K |
| 代理商： | MAX828 |
MAX828, MAX829
http://onsemi.com
15
2.6
I
out
, OUTPUT CURRENT (A)
Figure 46. Current Boosted Load Regulation,
Output Voltage vs. Output Current MAX828
V
o
,
0
0.4
0.5
0.3
0.2
0.1
0.6
3.2
2.4
2.8
2.2
V
in
= 5.0 V
R
out
= 0.9
T
A
= 25
°
C
3.0
2.6
I
out
, OUTPUT CURRENT (A)
Figure 47. Current Boosted Load Regulation,
Output Voltage vs. Output Current MAX829
V
o
,
0
0.4
0.5
0.3
0.2
0.1
0.6
3.2
2.4
2.8
2.2
2.0
V
in
= 5.0 V
R
out
= 1.0
T
A
= 25
°
C
3.0
Figure 48. Positive Output Voltage Doubler with High Current Capability
+
5
4
2
3
1
OSC
+
V
in
V
out
Q
1
C
3
+
C
2
Q
2
C
1
Capacitors = 220 F
Q
1
= PZT751
Q
2
= PZT651
50
50
The MAX828/829 can be configured to produce a positive output voltage doubler with current capability in excess of
500 mA. This is accomplished with the addition of two external switch transistors and two Schottky diodes. The output voltage
is approximately equal to 2V
in
minus the sum of the base emitter drops of both transistors and the forward voltage of both
diodes. The performance characteristics for the converter are shown below. Note that the output resistance is reduced to 1.8
.
8.0
I
out
, OUTPUT CURRENT (mA)
Figure 49. Positive Doubler with Current
Boosted Load Regulation, Output Voltage vs.
Output Current, MAX828
V
o
,
0
0.4
0.5
0.3
0.2
0.1
6.8
8.4
7.6
8.8
V
in
= 5.0 V
R
out
= 1.8
T
A
= 25
°
C
7.2
I
out
, OUTPUT CURRENT (mA)
Figure 50. Positive Doubler with Current
Boosted Load Regulation, Output Voltage vs.
Output Current, MAX829
V
o
,
7.0
9.0
V
in
= 5.0 V
R
out
= 1.8
T
A
= 25
°
C
7.4
8.6
8.2
7.8
0.6
0
0.4
0.5
0.3
0.2
0.1
0.6
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| MAX828 | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX828/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Switched Capacitor Voltage Converters |
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| MAX828C/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Switched-Capacitor Voltage Inverters |
| MAX828C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX828EPA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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