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NCP432B Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP432B Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 17 page NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series www.onsemi.com 3 ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.) Symbol Characteristic NCP431AC NCP431AI NCP431AV/ SC431AV Unit Min Typ Max Min Typ Max Min Typ Max Vref Reference Input Voltage VKA = Vref, IK = 1 mA TA = 25°C TA = Tlow to Thigh (Figure 3, Note 2) 2.475 2.475 2.500 2.500 2.525 2.525 2.475 2.465 2.500 2.500 2.525 2.525 2.475 2.460 2.500 2.500 2.525 2.525 V DVrefT Reference Input Voltage Deviation Over Temperat- ure Range (Figure 3, Notes 3, 4) VKA= Vref, IK = 1 mA − − − − 5.0 10 − 10 15 mV DVref DVKA Ratio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage IK = 1 mA (Figure 4), DVKA = 10 V to Vref DVKA = 36 V to 10 V − − −1.85 −0.80 −3.1 −1.8 − − −1.85 −0.80 −3.1 −1.8 − − −1.85 −0.80 −3.1 −1.8 mV/ V Iref Reference Input Current (Figure 4) IK = 1 mA, R1 = 220 k, R2 = R TA = −40°C to +125°C − 81 190 − 81 190 − 81 190 nA DIrefT Reference Input Current Deviation Over Temperat- ure Range (Figure 4, Note 3) IK = 1 mA, R1 = 10 k, R2 = R − 22 55 − 22 55 − 22 55 nA Imin Minimum Cathode Current For Regulation VKA = Vref (Figure 3) − 4 0 60 − 4 0 60 − 4 0 60 mA Ioff Off−State Cathode Current (Figure 5) VKA = 36 V, Vref = 0 V − 180 1000 − 180 1000 − 180 1000 nA |ZKA| Dynamic Impedance (Figure 3, Note 5) VKA = Vref, DIK = 1.0 mA to 100 mA f v 1.0 kHz − 0.22 0.5 − 0.22 0.5 − 0.22 0.5 W 2. Tlow = −40 °C for NCP431AI, NCP431AV, SC431AV = 0 °C for NCP431AC Thigh = 70°C for NCP431AC = 85 °C for NCP431AI = 125 °C for NCP431AV, SC431AV 3. Guaranteed by design 4. The deviation parameter DVrefT 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, Vref is defined as: V ref ppm ° C + DV ref V ref @25 ° C 106 DT A + DV ref 106 DT 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. Example: DVrefT = 17 mV and slope is positive Vref = 2.5 V, DTA = 165°C (from −40°C to +125°C) aV ref + 0.017 @ 106 165 @ 2.5 + 41.2 ppm ° C 5. The dynamic impedance ZKA is defined as: (|ZKA| = (DVKA/DIK). When the device is programmed with two external resistors, R1 and R2, the total dynamic impedance of the circuit is defined as: |ZKA’| [ |ZKA| (1 + (R1/R2)). 6. SC431AVSNT1G − Tlow = −40°C, Thigh = 125°C. Guaranteed by design. SC Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. |
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