TL431KBElectrical Characteristics @ 25°C (Unless Otherwise Specified)ParameterSymbolTest ConditionsMinTypMaxUnit Reference output Voltage Vref VKA=VREF, IKA=10mA 2.485 2.495 2.505 V Deviation of Reference △Vref / VKA=VREF, IKA=10mA Input Voltage 4.5 17 mV △T Tmin≤Ta≤Tmax Ratio of Change in Reference Input △ △ V V KA=10V~Vref -1.0 -2.7 ref / Voltage to the Change in Cathode △VKA △ Voltage VKA=36V~10V -0.5 -2.0 I Reference Input Current I KA=10mA, ref R1=10KΩ , R2=∞ 1.5 4.0 μA Deviation of Reference Input I △I KA=10mA, Current Over Full Temperature ref / R1=10KΩ , R2=∞ 0.4 1.2 μA Range △T TA=full Temperature Minimum Cathode Current for I Regulation KA(min) 0.45 1.0 mA Off-State Cathode Current IKA(off) VKA=40V, VREF=0V 0.05 0.5 μA Dynamic Impedance ZKA IKA=1 to 100mA, f≤1.0KHz 0.15 0.5 Ω Rev.3-1-11202020 2/7 MCCSEMI.COM Document Outline 空白页面 空白页面 空白页面 空白页面
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