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| 型號(hào)： | LM4040CIZ-8.2 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | CAP 1000PF 100V 5% NP0(C0G) RAD.10 .15X.15 BULK TRIMMED-LEAD |
| 中文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 8.192 V, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁(yè)數(shù)： | 26/39頁(yè) |
| 文件大?。?/td> | 482K |
| 代理商： | LM4040CIZ-8.2 |
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Cathode and Load Currents
In a typical shunt-regulator configuration (see
Figure 9
), an external resistor, R
, is connected between the
supply and the cathode of the LM4040. R
S
must be set properly, as it sets the total current available to supply
the load (I
L
) and bias the LM4040 (I
Z
). In all cases, I
Z
must stay within a specified range for proper operation of
the reference. Taking into consideration one extreme in the variation of the load and supply voltage (maximum I
L
and minimum V
S
), R
S
must be small enough to supply the minimum I
Z
required for operation of the regulator, as
given by data-sheet parameters. At the other extreme, maximum V
S
and minimum I
L
, R
S
must be large enough
to limit I
Z
to less than its maximum-rated value of 15 mA.
R
S
is calculated according to
Equation 1
:
R
S
V
S
(I
L
V
Z
I
Z
)
(1)
LM4040
I
Z
+ I
L
I
L
I
Z
V
S
V
Z
R
S
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456I–JANUARY 2005–REVISED DECEMBER 2005
APPLICATION INFORMATION (continued)
Figure 9. Shunt Regulator
26
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4040DIZ-8.2 | CAP 120PF 100V 5% NP0(C0G) RAD.10 .15X.15 BULK |
| LM4040BIZ-3.0 | 128 x 128 pixel format, LED or EL Backlight available |
| LM4040CIZ-3.0 | 128 x 128 pixel format, LED or EL Backlight available |
| LM4040DIZ-3.0 | 128 x 128 pixel format, LED or EL Backlight available |
| LM4040BIZ-2.0 | 240 x 64 pixel format, CFL, LED, or EL Backlight available |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4040CS8-2.5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Reference |
| LM4040CSD-250GT3 | 制造商:ON Semiconductor 功能描述:SHUNT VOLTAGE REFERENCE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / SHUNT VOLTAGE REFERENCE |
| LM4040CSD-300GT3 | 制造商:ON Semiconductor 功能描述:SHUNT VOLTAGE REFERENCE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / SHUNT VOLTAGE REFERENCE |
| LM4040CSD-330GT3 | 制造商:ON Semiconductor 功能描述:SHUNT VOLTAGE REFERENCE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / SHUNT VOLTAGE REFERENCE |
| LM4040CSD-409GT3 | 制造商:ON Semiconductor 功能描述:SHUNT VOLTAGE REFERENCE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / SHUNT VOLTAGE REFERENCE |
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