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參數(shù)資料
| 型號： | TL4051CQDCKT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.212 V, PDSO5 |
| 封裝： | GREEN, PLASTIC, SC-70, 5 PIN |
| 文件頁數(shù)： | 5/25頁 |
| 文件大?。?/td> | 613K |
| 代理商： | TL4051CQDCKT |
www.ti.com
Adjustable Version
R
S
TL4051x (Adj)
VS
R1
R2
V = V
(1 + R2/R1)
Z
REF
+
V
REF
-
Cathode and Load Currents
R
S
+
V
S
* VZ
(I
L
) IZ)
(1)
TL4051x12
I + I
Z
L
I
L
I
Z
V
S
V
Z
R
S
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS487 – JUNE 2007
APPLICATION INFORMATION (continued)
The adjustable version allows VZ to be set by a user-defined resistor divider. The output voltage, VZ, is set
according to the equation shown in Figure 3.
Figure 3. Adjustable Shunt Regulator
In a typical shunt regulator configuration (see Figure 4), an external resistor, RS, is connected between the
supply and the cathode of the TL4051. RS must be set properly, as it sets the total current available to supply
the load (IL) and bias the TL4051 (IZ). In all cases, IZ 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 IL
and minimum VS), RS must be small enough to supply the minimum IZ required for operation of the regulator, as
given by data sheet parameters. At the other extreme, maximum VS and minimum IL, RS must be large enough
to limit IZ to less than its maximum recommended rating of 12 mA.
Figure 4. Shunt Regulator
13
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| TL4051BIDCKR | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.212 V, PDSO5 |
| TL4051A12IDBZR | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL4051CQDCKTG4 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Precision Micropower Shunt Vltg Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| TL406 | 制造商:TAITRON 制造商全稱:TAITRON Components Incorporated 功能描述:4A Bridge Rectifier |
| TL406G | 制造商:TAITRON 制造商全稱:TAITRON Components Incorporated 功能描述:4A Glass Passivated Bridge Rectifier |
| TL407 | 制造商:MELLERT 功能描述:TORCH DYNAMO 2XWHITE 1X HIPWR LED |
| TL408 | 制造商:MELLERT 功能描述:TORCH DYNAMO 5XWHITE LED |
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