Datasheet LM431SB (ON Semiconductor) - 3

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LM431SA, LM431SB, LM431SC ELECTRICAL CHARACTERISTICS
(Note 6, Values are at TA = 25°C unless otherwise noted)
LM431SA LM431SB LM431SC Symbol Parameter Conditions Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
VREF Reference Input VKA = VREF, IKA = 10 mA 2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508 V Voltage DVREF / DT Deviation of Refer- VKA = VREF, SOT−89 4.5 17.0 4.5 17.0 4.5 17.0 mV ence Input Voltage IKA = 10 mA SOT−23FL Over− Tempera- TMIN ≤ TA ≤ TMAX ture SOT−23 6.6 24 6.6 24 6.6 24 mV DVREF / Ratio of Change in IKA =10 mA DVKA = −1.0 −2.7 −1.0 −2.7 −1.0 −2.7 mV/V DVKA Reference Input 10 V−V Voltage to the REF Change in Cath- DVKA = ode Voltage 36 V − 10 V −0.5 −2.0 −0.5 −2.0 −0.5 −2.0 IREF Reference Input IKA = 10 mA, R1 = 10 KW, R2 = ∞ 1.5 4.0 1.5 4.0 1.5 4.0 μA Current DIREF / DT Deviation of Refer- IKA = 10 mA, SOT−89 0.4 1.2 0.4 1.2 0.4 1.2 μA ence Input Current R1 = 10 KW, SOT−23FL Over Full Temper- R2 = ∞, ature Range T SOT−23 0.8 2.0 0.8 2.0 0.8 2.0 μA A = Full Range IKA(MIN) Minimum Cathode VKA = VREF 0.45 1.00 0.45 1.00 0.45 1.00 mA Current for Regu- lation IKA(OFF) Off −Stage Cath- VKA = 36 V, VREF = 0 0.05 1.00 0.05 1.00 0.05 1.00 μA ode Current ZKA Dynamic Imped- VKA = VREF, IKA = 1 to 100 mA, 0.15 0.50 0.15 0.50 0.15 0.50 W ance f ≥ 1.0 kHz Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 6. LM431SAI, LM431SBI, LM431SCI: − TA(min) = −40_C, TA(max) = +85_C All other pins: − TA(min) = −25_C, TA(max) = +85_C
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