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TS431AIXRF Folha de dados(PDF) 2 Page - Taiwan Semiconductor Company, Ltd |
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TS431AIXRF Folha de dados(HTML) 2 Page - Taiwan Semiconductor Company, Ltd |
2 / 13 page TS431I Adjustable Precision Shunt Regulator 2/13 Version: A07 Recommend Operating Condition Parameter Symbol Limit Unit Cathode Voltage (Note 1) Vka Ref ~ 36 V Continuous Cathode Current Range Ik 1 ~ 100 mA Recommend Operating Condition Parameter Symbo Test Conditions Min Typ Max Unit TS431I 2.450 2.550 TS431AI 2.475 2.525 Reference voltage TS431BI Vref Vka =Vref, Ik=10mA (Figure 1) Ta=25 oC 2.487 2.495 2.513 V Deviation of reference input voltage ∆Vref Vka =Vref, Ik=10mA (Figure 1) Ta= full range -- 3 17 mV Radio of change in Vref to change in cathode Voltage ∆Vref/∆Vka Ika=10mA, Vka = 10V to Vref Vka = 36V to 10V (Figure 2) -- -- -1.4 -1.0 -2.7 -2.0 mV/V Reference Input current Iref R1=10KΩ, R2= ! , Ika=10mA Ta= full range (Figure 2) -- 0.7 4.0 uA Deviation of reference input current, over temp. ∆Iref R1=10KΩ, R2= ! , Ika=10mA Ta= full range (Figure 2) -- 0.4 1.2 uA Off-state Cathode Current Ika(off) Vref=0V (Figure 3), Vka=36V -- -- 1.0 uA Dynamic Output Impedance |Zka| f<1KHz, Vka=Vref Ika=1mA to 100mA (Figure 1) -- 0.22 0.5 Ω Minimum operating cathode current Ika(min) Vka=Vref (Figure 1) -- 0.4 0.6 mA * The deviation parameters ∆Vref and ∆Iref are defined as difference between the maximum value and minimum value obtained over the full operating ambient temperature range that applied. * The average temperature coefficient of the reference input voltage, αVref is defined as: Where: T2-T1 = full temperature change. αVref can be positive or negative depending on whether the slope is positive or negative. Example: Maximum Vref=2.496V at 30 oC, minimum Vref=2.492V at 0oC, Vref=2.495V at 25oC, ΔT=70 oC Because minimum Vref occurs at the lower temperature, the coefficient is possitive * The dynamic impedance ZKA is defined as: * When the device operating with two external resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance of the circuit is given by: |
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