Datenblatt-Suchmaschine für elektronische Bauteile |
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TS1431CTB0 Datenblatt(PDF) 2 Page - Taiwan Semiconductor Company, Ltd |
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TS1431CTB0 Datenblatt(HTML) 2 Page - Taiwan Semiconductor Company, Ltd |
2 / 11 page TS1431 Adjustable Precision Shunt Regulator 2/11 Version: B07 Recommend Operating Condition Parameter Symbol Limit Unit Cathode Voltage (Note 1) VKA Ref ~ 36 V Continuous Cathode Current Range IK 1 ~ 100 mA Recommend Operating Condition Parameter Symbol Test Conditions Min Typ Max Unit TS1431 2.450 2.550 TS1431A 2.475 2.525 Reference voltage TS1431B VREF VKA =VREF, IK =10mA (Figure 1) Ta=25 oC 2.487 2.495 2.513 V Deviation of reference input voltage ∆ VREF VKA = VREF, IK =10mA (Figure 1) Ta= full range -- 3 17 mV Radio of change in Vref to change in cathode Voltage ∆VREF /∆VKA IKA =10mA, VKA = 10V to VREF VKA = 36V to 10V (Figure 2) -- -- -1.4 -1.0 -2.7 -2.0 mV/V Reference Input current IREF R1=10KΩ, R2= ! , IKA =10mA Ta= full range (Figure 2) -- 0.7 4.0 uA Deviation of reference input current, over temp. ∆IREF R1=10KΩ, R2= ! , IKA =10mA Ta= full range (Figure 2) -- 0.4 1.2 uA Off-state Cathode Current IKA (off) VREF =0V (Figure 3), VKA =36V -- -- 1.0 uA Dynamic Output Impedance | ZKA | f<1KHz, VKA = VREF IKA =1mA to 100mA (Figure 1) -- 0.22 0.5 Ω Minimum operating cathode current IKA (min) VKA = VREF (Figure 1) -- 0.4 0.6 mA * The deviation parameters ∆VREF and ∆IREF are defined as difference between the maximum value and minimum value obtained over the full operating ambient temperature range that applied. * The average temperature coefficient of the reference input voltage, αVREF is defined as: Where: T2-T1 = full temperature change. αVREF can be positive or negative depending on whether the slope is positive or negative. Example: Maximum VREF=2.496V at 30 oC, minimum VREF =2.492V at 0oC, VREF =2.495V at 25oC, ΔT=70oC αVREF | = [4mV / 2495mV] * 10 6 / 70oC ≈ 23ppm/oC Because minimum VREF occurs at the lower temperature, the coefficient is positive. * The dynamic impedance ZKA is defined as: | ZKA | = ΔVKA / ΔIKA * When the device operating with two external resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance of the circuit is given by: | ZKA | = Δv / Δi | ≈ ZKA | * ( 1 + R1 / R2) |
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