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TL431BIDBZR Datasheet(PDF) 6 Page - NXP Semiconductors |
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TL431BIDBZR Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 23 page TL431_FAM_2 © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 02 — 20 January 2010 6 of 23 NXP Semiconductors TL431 family Adjustable precision shunt regulator 11. Thermal characteristics [1] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint. [2] Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm2. [3] Device mounted on a ceramic PCB, Al2O3, standard footprint. [4] Soldering point at pin 3. 12. Characteristics Table 9. Thermal characteristics Symbol Parameter Conditions Min Typ Max Unit Rth(j-a) thermal resistance from junction to ambient in free air [1] -- 360 K/W [2] -- 216 K/W [3] -- 132 K/W Rth(j-sp) thermal resistance from junction to solder point [4] -- 50 K/W Table 10. Characteristics Symbol Parameter Conditions Min Typ Max Unit Standard-Grade (2 %): TL431CDBZR; TL431IDBZR; TL431QDBZR; TL431SDT; TL431MSDT Vref reference voltage VKA =Vref; IK = 10 mA 2440 2495 2550 mV ΔV ref reference voltage variation VKA =Vref; IK =10mA TL431CDBZR Tamb =0 °Cto 70 °C- 6 16 mV TL431IDBZR Tamb = −40 °Cto85 °C - 14 34 mV TL431QDBZR TL431SDT TL431MSDT Tamb = −40 °C to 125 °C ΔV ref/ΔVKA reference voltage variation to cathode-anode voltage variation ratio IK =10mA ΔV KA =10 V to Vref - −1.4 −2.7 mV/V ΔV KA =36 V to 10 V - −1 −2mV/V Iref reference current IK =10mA; R1 = 10 k Ω; R2 = open -2 4 μA ΔI ref reference current variation IK =10mA; R1 = 10 k Ω; R2 = open TL431CDBZR Tamb =0 °Cto 70 °C- 0.4 1.2 μA TL431IDBZR Tamb = −40 °Cto85 °C- 0.8 2.5 μA TL431QDBZR TL431SDT TL431MSDT Tamb = −40 °C to 125 °C IK(min) minimum cathode current VKA =Vref -0.4 1 mA Ioff off-state current VKA =36 V; Vref =0 - 0.1 1 μA ZKA dynamic cathode-anode impedance IK =1mA to 100mA; VKA =Vref; f < 1 kHz -0.2 0.5 Ω |
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