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TL431CZT Datasheet(PDF) 2 Page - STMicroelectronics |
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TL431CZT Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 10 page TL431 2/10 ABSOLUTE MAXIMUM RATINGS OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS T amb = 25°C (unless otherwise specified) 1) ∆V ref is defined as the difference between the maximum and minimum values obtained over the full temperature range. ∆V ref = Vref max. - Vref min. 2) The dynamic Impedance is definied as ZKA = Symbol Parameter Value Unit VKA Cathode to Anode Voltage 37 V Ik Continuous Cathode Current Range -100 to +150 mA Iref Reference Input Current Range -0.05 to +10 mA pd Power Dissipation 1) TO92 SO8 batwing 625 960 mW Tstg Storage Temperature Range -65 to +150 °C 1. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 200°C/W for TO92 package = 130°C/W for SO8 batwing package Symbol Parameter Value Unit VKA Cathode to Anode Voltage Vref to 36 V Ik Cathode Current 1 to 100 mA Toper Operating Free-air Temperature Range TL431C/AC TL431I/AI 0 to +70 -40 to +105 °C Symbol Parameter TL431C TL431AC Unit Min. Typ. Max. Min. Typ. Max. Vref Reference Input Voltage VKA = Vref , Ik = 10 mA Tamb = 25°C Tmin ≤Tamb ≤ Tmax 2.44 2.423 2.495 2.55 2.567 2.47 2.453 2.495 2.52 2.537 V ∆V ref Reference Input Voltage Deviation Over- Temperature Range - note 1 VKA = Vref, Ik = 10 mA,Tmin ≤Tamb ≤ Tmax 3 17 3 15 mV Ratio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage - (figure 2) Ik = 10mA ∆V KA = 10V to Vref ∆V KA = 36V to 10V -1.4 -1 -2.7 -2 -1.4 -1 -2.7 -2 mV/V Iref Reference Input Current Ik = 10mA, R1 = 10k Ω, R2 = ∞ Tamb = 25°C Tmin ≤Tamb ≤Tmax 1.8 4 5.2 1.8 4 5.2 µA ∆I ref Reference Input Current Deviation Over Temperature Range Ik = 10mA, R1 = 10k Ω, R2 =∞ Tmin ≤Tamb ≤ Tmax 0.4 1.2 0.4 1.2 µA Imin Minimum Cathode Current for Regulation VKA = Vref 0.5 1 0.5 0.6 mA Ioff Off-State Cathode Current 2.6 1000 2.6 1000 nA ZKA Dynamic Impedance - note 2 VKA = Vref ,∆ Ik = 1 to100mA, f ≤1kHZ 0.22 0.5 0.22 0.5 Ω ∆Vref ∆Vka ------------ T1 T2 Temperature V ref max. V ref min. ∆VKA ∆IK ----------------- |
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