參數(shù)資料
型號： LM4041D12IDBZT
廠商： TEXAS INSTRUMENTS INC
元件分類： 基準電壓源/電流源
英文描述： 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3
封裝： GREEN, PLASTIC, SOT-23, 3 PIN
文件頁數(shù)： 7/28頁
文件大小： 675K
代理商： LM4041D12IDBZT
www.ti.com
APPLICATION INFORMATION
Adjustable Version
RS
LM4041
(Adjustable)
VS
R1
R2
VZ = VREF 1 )
R2
R1
+
VREF
Cathode and Load Currents
R
S
+
V
S
* VZ
(I
L
) IZ)
(1)
LM4041
IZ + IL
IL
IZ
VS
VZ
RS
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006
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 14.
Figure 14. Adjustable Shunt Regulator
In a typical shunt regulator configuration (see Figure 15), an external resistor, RS, is connected between the
supply and the cathode of the LM4041. RS must be set properly, as it sets the total current available to supply
the load (IL) and bias the LM4041 (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.
RS is calculated as shown in Equation 1.
Figure 15. Shunt Regulator
15
相關(guān)PDF資料
PDF描述
LM4041D12QDBZRG4 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3
LM4041A12IDCKRG4 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO5
LM4041DIDBZRG4 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.233 V, PDSO3
LM4041DQDBZT 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.233 V, PDSO3
LM4041DIDBZR 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.233 V, PDSO3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4041D12IDBZT 制造商:Texas Instruments 功能描述:IC VOLT REF PREC MCROPWR SOT23-3 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3; Topology:Shunt; Reference Voltage:1.23V; Reference Voltage Tolerance:12mV; Voltage Reference Case Style:SOT-23; No. of Pins:3; Temperature Coefficient:150ppm/C; Operating Temperature Range:-40C to;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3; Topology:Shunt; Reference Voltage:1.23V; Reference Voltage Tolerance:12mV; Voltage Reference Case Style:SOT-23; No. of Pins:3; Temperature Coefficient:150ppm/C; SVHC:No SVHC (19-Dec-2012); Base ;RoHS Compliant: Yes
LM4041D12IDBZTG4 功能描述:基準電壓& 基準電流 1.2-V Precision Mcrpwr Shunt 1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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
LM4041D12IDCKR 功能描述:基準電壓& 基準電流 1.2-V Precision Mcrpwr Shunt 1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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
LM4041D12IDCKRE4 功能描述:基準電壓& 基準電流 1.2-V Precision Mcrpwr Shunt 1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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
LM4041D12IDCKRG4 功能描述:基準電壓& 基準電流 1.2V Prec Micropwr Shunt Vltg Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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
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