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| 型号： | MAX829EUK |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/17页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHD CAP DBL INV 5TSOP |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 3,000 |
| 类型： | 切换式电容器（充电泵），倍增器，反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | -1.15 V ~ -5.5 V，2.3 V ~ 11 V |
| 输入电压： | 1.15 V ~ 5.5 V |
| 频率 - 开关： | 19kHz ~ 54kHz |
| 电流 - 输出： | 50mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSOP（0.059"，1.50mm 宽）5 引线 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 5-TSOP |
| 其它名称： | MAX829EUKOS |
MAX828, MAX829
50
Q 2
C 1
1
5
V out
OSC
50
Q 1
+
+
C 2
V in
+
C 3
2
3
4
Capacitors = 220 m F
Q 1 = PZT751
Q 2 = PZT651
Figure 48. Positive Output Voltage Doubler with High Current Capability
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 W .
8.8
9.0
8.4
8.0
7.6
7.2
V in = 5.0 V
R out = 1.8 W
T A = 25 ° C
8.6
8.2
7.8
7.4
V in = 5.0 V
R out = 1.8 W
T A = 25 ° C
6.8
0
0.1
0.2
0.3
0.4
0.5
0.6
7.0
0
0.1
0.2
0.3
0.4
0.5
0.6
I out , OUTPUT CURRENT (mA)
Figure 49. Positive Doubler with Current
Boosted Load Regulation, Output Voltage vs.
Output Current, MAX828
I out , OUTPUT CURRENT (mA)
Figure 50. Positive Doubler with Current
Boosted Load Regulation, Output Voltage vs.
Output Current, MAX829
?V out
V in
+
1
2
OSC
5
+
+
MAX828: Capacitors = 10 m F
MAX829: Capacitors = 3.3 m F
+
3
4
+
+V out
Figure 51. A Positive Doubler, with a Negative Inverter
http://onsemi.com
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX829EUK+ | 制造商:Maxim Integrated Products 功能描述:CHG PUMP INV -5.5V TO -1.5V 25MA 5PIN SOT-23 - Rail/Tube |
| MAX829EUK+T | 功能描述:电荷泵 Switched-Capacitor Voltage Inverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX829EUKG | 功能描述:电荷泵 Switched Cap Voltage Inverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX829EUK-T | 功能描述:电荷泵 Switched-Capacitor Voltage Inverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX829EUK-TG05 | 功能描述:电荷泵 Switched-Capacitor Voltage Inverter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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