Datasheet AP431, AP431A (Diodes) - 3

NOT RECOMMENDED FOR NEW DESIGN USE AS431 AP431/AP431A Absolute Maximum Ratings
(@TA = +25°C, unless otherwise specified.)
Parameter Rating Unit
Cathode Voltage +36 V Continuous Cathode Current -10 to +250 mA Reference Input Current 10 mA Operating Temperature -20 to +85 °C Storage Temperature -65 to +150 °C SOT23(R) 400 mW SOT25 550 mW Power Dissipation (Notes 4, 5) SC59(R) 400 mW SO-8 600 mW SOT89 800 mW Notes: 4. TJ, max = +150°C. 5. Ratings apply to ambient temperature at +25°C.
Electrical Characteristics
(@TA = +25°C, VDD = 3V; unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Units
VKA = VREF, AP431 2.470 2.520 VREF Reference voltage 2.495 V IKA = 10mA (Figure 1) AP431A 2.482 2.507 Deviation of reference input voltage over VKA = VREF, IKA = 10mA VDEV — 8.0 20.0 mV temperature (Note 5) TA = Full Range (Figure 1) ΔVREF Ratio of the change in reference voltage to VKA = VREF to 10V — -1.4 -2.0 mV/V ΔV I the change in cathode voltage KA = 10mA (Figure 2) KA VKA = 10V to 36V — -1 -2 mV/V IREF Refernce input current R1 = 10KΩ, R2 = ∞ IKA = 10mA (Figure 2) — 1.4 3.5 µA R1 = 10KΩ, R2 = ∞ I α Deviation of reference input current over KA = 10mA IREF — 0.4 1.2 µA temperature TA = Full range (Figure 2) IKA(MIN) Minimum cathode current for regulation VKA = VREF (Figure 1) — 0.19 0.50 mA IKA(OFF) Off-state current VKA = 36V, VREF = 0V (Figure 3) — 0.1 1.0 µA VKA = VREF VKA = VREF |ZKA| Dynamic output impedance (Note 7) ΔIKA = 0.1mA to 15mA — 0.2 0.5 Ω Frequency ≤ 1KHz (Figure 1) AP431/AP431A 3 of 17 September 2014 Document number: DS31002 Rev. 21 - 2
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