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參數(shù)資料
| 型號： | LM828M5X |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Banana Plug; Current Rating:15A; Body Material:Brass; Color:Black; Spring Material:Beryllium Copper; Operating Temperature Range :? F; Voltage Rating:5000V RoHS Compliant: Yes |
| 中文描述： | SWITCHED CAPACITOR CONVERTER, 56 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 186K |
| 代理商： | LM828M5X |
Other Applications
(Continued)
Combined Doubler and Inverter
In Figure 5, the LM828 is used to provide a positive voltage
doubler and a negative voltage converter. Note that the total
current drawn from the two outputs should not exceed 40
mA.
Regulating V
OUT
It is possible to regulate the negative output of the LM828 by
use of a low dropout regulator (such as the LP2980). The
whole converter is depicted in Figure 6. This converter can
give a regulated output from 1.8V to 5.5V by choosing the
proper resistor ratio:
V
out
= V
ref
(1 + R
1
/R
2
)
where, V
ref
= 1.23V
Note that the following conditions must be satisfied simulta-
neously for worst case design:
V
in_min
>
V
out_min
+V
drop_max
(LP2980)
+ I
out_max
x R
out_max
(LM828)
V
in_max
V
out_max
+V
drop_min
(LP2980)
+ I
out_min
x R
out_min
(LM828)
DS100137-11
FIGURE 5. Combined Voltage Doubler and Inverter
DS100137-12
FIGURE 6. Combining LM828 with LP2980 to Make a Negative Adjustable Regulator
www.national.com
7
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM828M5X/NOPB | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM828M5X-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM828 Switched Capacitor Voltage Converter |
| LM82CIMQA | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM82CIMQA/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM82CIMQA/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
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