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TLV431ASN1T1G Datasheet(PDF) 3 Page - ON Semiconductor |
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TLV431ASN1T1G Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 15 page TLV431A, TLV431B, SCV431B http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Characteristic Symbol TLV431A TLV431B Unit Min Typ Max Min Typ Max Reference Voltage (Figure 3) (VKA = Vref, IK = 10 mA, TA = 25°C) (TA = Tlow to Thigh, Note 1) Vref 1.228 1.215 1.240 − 1.252 1.265 1.234 1.228 1.240 − 1.246 1.252 V Reference Input Voltage Deviation Over Temperature (Figure 3) (VKA = Vref, IK= 10 mA, TA = Tlow to Thigh, Note 1) DVref − 7.2 20 − 7.2 20 mV Ration of Reference Input Voltage Change to Cathode Voltage Change (Figure 4) (VKA = Vref to 16 V, IK= 10 mA) DVref DVKA − −0.6 −1.5 − −0.6 −1.5 mV V Reference Terminal Current (Figure 4) (IK = 10 mA, R1 = 10 kW, R2 = open) Iref − 0.15 0.3 − 0.15 0.3 mA Reference Input Current Deviation Over Temperature (Figure 4) (IK = 10 mA, R1 = 10 kW, R2 = open, Notes 1, 2) DIref − 0.04 0.08 − 0.04 0.08 mA Minimum Cathode Current for Regulation (Figure 3) IK(min) − 55 80 − 55 80 mA Off−State Cathode Current (Figure 5) (VKA = 6.0 V, Vref = 0) (VKA = 16 V, Vref = 0) IK(off) − − 0.01 0.012 0.04 0.05 − − 0.01 0.012 0.04 0.05 mA Dynamic Impedance (Figure 3) (VKA = Vref, IK =0.1 mA to 20 mA, f ≤ 1.0 kHz, Note 3) |ZKA| − 0.25 0.4 − 0.25 0.4 W 1. Ambient temperature range: Tlow = *40°C, Thigh = 85°C. 2. The deviation parameters DVref and DIref are defined as the difference between the maximum value and minimum value obtained over the full operating ambient temperature range that applied. Vref Max Vref Min T1 T2 Ambient Temperature DVref = Vref Max − Vref Min DTA = T2 − T1 The average temperature coefficient of the reference input voltage, aVref is defined as: αVref ppm °C + (DVref) Vref (TA+ 25°C) 106 DTA aVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature, refer to Figure 8. Example: DVref = 7.2 mV and the slope is positive, Example: Vref @ 25°C = 1.241 V Example: DTA = 125°C αVref ppm °C + 0.0072 1.241 125 + 46 ppm °C 106 3. The dynamic impedance ZKA is defined as: ⏐ZKA⏐ + DVKA DIK When the device is operating with two external resistors, R1 and R2, (refer to Figure 4) the total dynamic impedance of the circuit is given by: ⏐ZKA′⏐ + ⏐ZKA⏐ 1 ) R1 R2 |
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