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TL431CDMR2 데이터시트(PDF) 3 Page - ON Semiconductor |
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3 / 19 page TL431, A, B Series, NCV431A, B http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.) Characteristic Symbol TL431I TL431C Unit Min Typ Max Min Typ Max Reference Input Voltage (Figure 1) VKA = Vref, IK = 10 mA TA = 25°C TA = Tlow to Thigh (Note 1) Vref 2.44 2.41 2.495 − 2.55 2.58 2.44 2.423 2.495 − 2.55 2.567 V Reference Input Voltage Deviation Over Temperature Range (Figure 1, Notes 1, 2) VKA= Vref, IK = 10 mA DVref − 7.0 30 − 3.0 17 mV Ratio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage IK = 10 mA (Figure 2), DVKA = 10 V to Vref DVKA = 36 V to 10 V DV ref DV KA − − −1.4 −1.0 −2.7 −2.0 − − −1.4 −1.0 −2.7 −2.0 mV/V Reference Input Current (Figure 2) IK = 10 mA, R1 = 10 k, R2 = ∞ TA = 25°C TA = Tlow to Thigh (Note 1) Iref − − 1.8 − 4.0 6.5 − − 1.8 − 4.0 5.2 mA Reference Input Current Deviation Over Temperature Range (Figure 2, Note 1, 4) IK = 10 mA, R1 = 10 k, R2 = ∞ DIref − 0.8 2.5 − 0.4 1.2 mA Minimum Cathode Current For Regulation VKA = Vref (Figure 1) Imin − 0.5 1.0 − 0.5 1.0 mA Off−State Cathode Current (Figure 3) VKA = 36 V, Vref = 0 V Ioff − 20 1000 − 20 1000 nA Dynamic Impedance (Figure 1, Note 3) VKA = Vref, DIK = 1.0 mA to 100 mA f ≤ 1.0 kHz |ZKA| − 0.22 0.5 − 0.22 0.5 W 1. Tlow = −40 °C for TL431AIP TL431AILP, TL431IP, TL431ILP, TL431BID, TL431BIP, TL431BILP, TL431AIDM, TL431IDM, TL431BIDM; =0 °C for TL431ACP, TL431ACLP, TL431CP, TL431CLP, TL431CD, TL431ACD, TL431BCD, TL431BCP, TL431BCLP, TL431CDM, TL431ACDM, TL431BCDM 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 2. 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. DVref = Vref max −Vref min DTA = T2 − T1 T2 Ambient Temperature T1 Vref min Vref max The average temperature coefficient of the reference input voltage, aVref is defined as: V ref ppm _C + D V ref V ref @25 _C X106 D T A + D V ref x106 D T A (V ref @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 : DV ref + 8.0 mV and slope is positive, V ref @25 _C + 2.495 V, DT A + 70 _C a V ref + 0.008 x 106 70 (2.495) + 45.8 ppm _C 3. The dynamic impedance ZKA is defined as: |ZKA| + D V KA D I K . 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: |Z KA | [ |Z KA | 1 ) R1 R2 |
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