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TL431ZCP Datasheet(PDF) 3 Page - IK Semicon Co., Ltd |
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TL431ZCP Datasheet(HTML) 3 Page - IK Semicon Co., Ltd |
3 / 13 page TL431Z 2011, January, rev. 03 ELECTRICAL CHARACTERISTICS (Ta = 25 oC, V KA = VREF, IK = 10mA unless otherwise specified) Characteristic Symbol Test Condition Min Typ Max Unit Reference Input Voltage VREF VKA = VREF, IK = 10mA TL431Z (2%) TL431Z-A (1%) TL431Z-C (0.5%) 2.440 2.470 2.482 2.495 2.495 2.495 2.550 2.520 2.508 V Deviation of Reference Input Voltage Over Full Temperature Range VREF(dev) Tmin ≤ Ta ≤ Tmax 3 17 MV Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage ∆ ∆ V V REF KA ∆V KA = 10V-VREF ∆V KA = 36V- 10V -1.4 -1.0 -2.7 -2.0 mV/V Reference Input Current IREF R1 = 10KΩ, R2 = ∞ 1.8 4 ㎂ Deviation of Reference Input Current Over Full Temperature Range IREF(dev) R1 = 10KΩ, R2 = ∞ 0.4 1.2 ㎂ Minimum Cathode Current for Regulation IK(min) 0.25 0.5 mA Off-State Cathode Current IK(off) VKA = 40 V, VREF = 0 0.17 0.9 ㎂ Dynamic Impedance ZKA IK = 10mA to 100 mA , f ≤ 1.0KHz 0.27 0.5 Ω Note : 1. The deviation parameter ∆Vref is defined as the difference between the maximum and minimum values obtained over the full operating ambient temperature range that applies The average temperature coefficient of the reference input voltage, aVref is defined as: αVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature. (Refer to Figure 6.) 2. The dynamic impedance ZKA is defined as When the device is programmed with two external resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance of the circuit is defined as: |
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