參數(shù)資料
型號(hào)： LM4040B82IDCKR
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, 8.192 V, PDSO5
封裝： GREEN, PLASTIC, SC-70, 5 PIN
文件頁(yè)數(shù)： 21/56頁(yè)
文件大小： 773K
代理商： LM4040B82IDCKR
Cathode and Load Currents
R
S
+
V
S
* VZ
(I
L
) IZ)
(1)
LM4040
IZ + IL
IL
IZ
VS
VZ
RS
LM4040
SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com
In a typical shunt-regulator configuration (see Figure 9), an external resistor, RS, is connected between the
supply and the cathode of the LM4040. RS must be set properly, as it sets the total current available to supply
the load (IL) and bias the LM4040 (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-rated value of 15 mA.
RS is calculated according to Equation 1:
Figure 9. Shunt Regulator
28
Copyright 2005–2008, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
LM4040B82ILPR 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 8.192 V, PBCY3
LM4040D20IDBZT 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.048 V, PDSO3
LM4040D30IDBZT 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 3 V, PDSO3
LM4040D82IDBZR 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 8.192 V, PDSO3
LM4040B20IDBZRG4 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.048 V, PDSO3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4040B82IDCKRG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 8.192-V Prec M-P Shunt 0.2% accuracy 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
LM4040B82ILP 制造商:TI 制造商全稱:Texas Instruments 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
LM4040B82ILPR 制造商:TI 制造商全稱:Texas Instruments 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
LM4040BEM3-2.1 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product
LM4040BEM3-2.1+ 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 2.048V 15MA 3PIN SOT-23 - Rail/Tube
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