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KIA431BAM Datasheet(PDF) 4 Page - KEC(Korea Electronics) |
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KIA431BAM Datasheet(HTML) 4 Page - KEC(Korea Electronics) |
4 / 6 page 2016. 03. 23 4/6 KIA431AA/BA/CA Series Revision No : 3 Input FIGURE 1-TEST CIRCUIT FOR VKA = Vref off I KA V Input FIGURE 3-TEST CIRCUIT FOR I off KA I L *C 1 R 2 R 150 FIGURE 4-TEST CIRCUIT FOR satbility boundary conditions FIGURE 2-TEST CIRCUIT FOR VKA > Vref IK IK VKA VKA Input R1 R2 Iref VKA = Vref ( 1+ ) + Iref R1 R1 R2 Max. Min. T1 T2 AMBIENT TEMPERATURE - Vref (Min.) Ta = T2 - T1 Vref Vref Vref Vref = Vref (Max.) Vref Example : ΔVref = 8.0mV and slope is positive, Vref at 25℃=2.495V, ΔTa=70℃ 0.008 ×106 αVref = = 45.8 ppm/ ℃ 70 ×(2.495) Note 2: The dynamic impedance Zka is defined as: ΔVKA |Zka| = ΔIK 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: R1 |Zka’| = |Zka| (1+ ) R2 Note 1: The deviation parameter ΔVref is defined as the differences between the maximum and minimum values obtained over the full operating ambient temperature range that applies. * Note 1: Recommend using more than CL = 10uF under IKA = 1mA The average temperature coefficient of the Reference input voltage, ΔVref , is defined as: ΔVref ( ) × 106 ppm Vref at 25℃ αVref ( ) = ℃ΔTa ΔVref × 106 = ΔTa(Vref at 25℃) αVref can be positive or negative depending on whether Vref Min. or Vref Max. occurs at the lower ambient temperature. |
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