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LM431BK-XX-TR30 Datasheet(PDF) 4 Page - TAITRON Components Incorporated |
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LM431BK-XX-TR30 Datasheet(HTML) 4 Page - TAITRON Components Incorporated |
4 / 14 page Shunt Regulator Rev. A/DX 2007-06-04 LM431 www.taitroncomponents.com Page 4 of 14 Electrical Characteristics (T A=25ºC, unless otherwise specified) LM431 LM431A LM431B Symbol Description Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Test Circuit Conditions VREF Reference Input Voltage 2.440 2.495 2.550 2.480 2.500 2.520 2.490 2.500 2.510 V Fig.1 VKA=VREF,IKA=10mA 0-70° C - - - - 4.8 8 - 4.5 8 ∆VREF Reference Input Voltage Deviation -40-85 °C - 7.0 30 - 4.5 10 - 4.5 10 mV Fig.1 (Note1) VKA=VREF,IKA=10mA - -1.4 -2.7 - -1.0 -2.7 - -1.0 -2.7 ∆VKA=10V~ VREF ∆VREF/∆VKA Ratio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage - -1.0 -2.0 - -0.5 -2.0 - -0.5 -2.0 mV/V Fig.2 IKA= 10mA ∆VKA=36V~ 10V Ta=25° C - 1.8 4.0 - 0.7 4.0 - 0.7 4.0 IREF Referenc e Input Current Ta=Topr - - 6.5 - - - - - - µA Fig.2 IKA=10mA, R1=10KΩ, R2=∞ ∆IREF Reference Input Current Deviation - 0.8 2.5 - 0.4 1.2 - 0.4 1.2 µA Fig.2 IKA=10mA, R1=10KΩ, R2=∞, -40 ~ 85° C IMIN Min. Cathode Current For Regulation - 0.5 1.0 - 0.4 1.0 - 0.4 1.0 mA Fig.1 VKA=VREF IOFF Off-State Cathode Current - 2.6 1000 - 50 1000 - 50 1000 nA Fig.3 VKA=36V, VREF=0V ZKA Dynamic Impedance - 0.22 - - 0.15 0.5 - 0.15 0.5 Ω Fig.1 (Note2) VKA=VREF, IKA=1.0~100mA, f≤1.0KHz Fig.1- Test Circuit for VKA=VREF Fig.2- Test Circuit for VKA>VREF |
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