Datasheet TL431A, TL431B, NCV431A, NCV431B, SCV431A (ON Semiconductor) - 4

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TL431A, B Series, NCV431A, B Series, SCV431A ELECTRICAL CHARACTERISTICS
(TA = 25 °C, unless otherwise noted.)
TL431AI / TL431BC / TL431BI / NCV431AI/ TL431BV / SCV431AI TL431AC NCV431BV Characteristic Symbol Min Typ Max Min Typ Max Min Typ Max Unit
Reference Input Voltage (Figure 1) Vref V VKA = Vref, IK = 10 mA TA = 25 °C 2.47 2.495 2.52 2.47 2.495 2.52 2.485 2.495 2.505 TA = Tlow to Thigh (Note 6) 2.44 − 2.55 2.453 − 2.537 2.475 2.495 2.515 Reference Input Voltage Deviation Over DVref − 7.0 30 − 3.0 17 − 3.0 17 mV Temperature Range (Figure 1, Notes 7, 8) VKA= Vref, IK = 10 mA Ratio of Change in Reference Input Voltage to DV mV/V Change in Cathode to Anode Voltage ref I DV K = 10 mA (Figure 2), KA DVKA = 10 V to Vref − −1.4 −2.7 − −1.4 −2.7 − −1.4 −2.7 DVKA = 36 V to 10 V − −1.0 −2.0 − −1.0 −2.0 − −1.0 −2.0 Reference Input Current (Figure 2) Iref mA IK = 10 mA, R1 = 10 k, R2 = ∞ TA = 25 °C − 1.8 4.0 − 1.8 4.0 − 1.1 2.0 TA = Tlow to Thigh (Note 6) − − 6.5 − − 5.2 − − 4.0 Reference Input Current Deviation Over DIref − 0.8 2.5 − 0.4 1.2 − 0.8 2.5 mA Temperature Range (Figure 2, Note 7) IK = 10 mA, R1 = 10 k, R2 = ∞ Minimum Cathode Current For Regulation Imin − 0.5 1.0 − 0.5 1.0 − 0.5 1.0 mA VKA = Vref (Figure 1) Off-State Cathode Current (Figure 3) Ioff − 20 1000 − 20 1000 − 0.23 500 nA VKA = 36 V, Vref = 0 V Dynamic Impedance (Figure 1, Note 9) |ZKA| − 0.22 0.5 − 0.22 0.5 − 0.14 0.3 W VKA = Vref, DIK = 1.0 mA to 100 mA 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. Tlow = −40 °C for TL431AIP TL431AILP, TL431IP, TL431ILP, TL431BID, TL431BIP, TL431BILP, TL431BV, TL431AIDM, TL431IDM, TL431BIDM, NCV431AIDMR2G, NCV431AIDR2G, NCV431BVDR2G, SCV431AIDMR2G = 0 °C for TL431ACP, TL431ACLP, TL431CP, TL431CLP, TL431CD, TL431ACD, TL431BCD, TL431BCP, TL431BCLP, TL431CDM, TL431ACDM, TL431BCDM, SCV431AIDMR2G Thigh = +85 °C for TL431AIP, TL431AILP, TL431IP, TL431ILP, TL431BID, TL431BIP, TL431BILP, TL431IDM, TL431AIDM, TL431BIDM = +70 °C for TL431ACP, TL431ACLP, TL431CP, TL431ACD, TL431BCD, TL431BCP, TL431BCLP, TL431CDM, TL431ACDM, TL431BCDM = +125 °C TL431BV, NCV431AIDMR2G, NCV431AIDR2G, NCV431BVDMR2G, NCV431BVDR2G, SCV431AIDMR2G 7. Guaranteed by design. 8. The deviation parameter DVref is defined as the difference between the maximum and minimum values obtained over the full operating ambient temperature range that applies. Vref max DVref = Vref max -Vref min DTA = T2 - T1 Vref min T1 T2 Ambient Temperature ǒ DVref ǓX106 V ppm ref @ 25_C D V The average temperature coefficient of the reference input voltage, aV ref x 106 ref is defined as: Vref + _C + D TA D TA (Vref @ 25_C) aVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature. (Refer to Figure 6.) Example : DVref + 8.0 mV and slope is positive, V 0.008 x 106 ref @ 25_C + 2.495 V, DTA + 70_C a Vref + + 45.8 ppmń_C 70 (2.495) D V 9. The dynamic impedance Z KA KA is defined as |ZKA| + When the device is programmed with two external resistors, R1 and R2, (refer D IK to Figure 2) the total dynamic impedance of the circuit is defined as: |Z Ǔ KAȀ| [ |ZKA| ǒ 1 ) R1 R2 10.NCV431AIDMR2G, NCV431AIDR2G, NCV431BVDMR2G, NCV431BVDR2G, SCV431AIDMR2G Tlow = −40 °C, Thigh = +125 °C. NCV prefix is for automotive and other applications requiring unique site and control change requirements.
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