TL431

TL431 Elektronische Bauelemente 3-Terminal Adjustable Shunt Regulator TO-92 E S1 Description The TL431 series are three-terminal adjustable regulators with guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.495V) and 36V with two external resistors. It provides very wide applications, including shunt regulator, series regulator, switching regulator, voltage reference and others. L D A SEATING PLANE b1 e1 e b C REF. A S1 b b1 C Absolute Maximum Ratings at TA=25 oC Parameter Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Operating Junction And Storage Temperature Range Total Power Dissipation Millimeter Min. Max. 4.45 4.7 1.02 0.36 0.51 0.36 0.76 0.36 0.51 REF. D E L e1 e Millimeter Min. Max. 4.44 4.7 3.30 3.81 12.70 1.150 1.390 2.42 2.66 Symbol VKA IKA IREF Tj ,Tstg PD Ratings 37 -100~+150 -0.05~+10 150, -65~+150 625 Unit V mA mA o C mW Characteristics Parameter C athode Voltage C athode C urr ent R efer enc e Input Voltage at Ta = 25 : Symbol VK A IKA TL431C TL431B TL431A VREF M in VREF 1 2.445 2.470 2.483 VREF/ T VREF/ VKA IREF IREF/ T IKA(min) IKA(off) ‡ kA Z Typ. 2.495 2.495 2.495 4.5 -1.0 -0.5 1.5 0.4 0.45 0.05 0.15 M ax. 36 100 2.545 2.520 2.507 17 -2.7 -2.0 4 1.2 1.0 1.0 0.5 mV VKA=VREF,IK=10mA Tmin Ta Tmax VKA=10V~VREF VKA=36V~10V V VKA= VREF,IK=10mA Unit V mA Test Conditions D eviation of r ef er enc e Input Voltage O ver temper atur e( note) R atio of C hange in R ef er enc e Input Voltage to the Change in C athode Voltage R efer enc e Input C urr ent D eviation of r ef er enc e Input Curr ent O ver Full Temper atur e R ange Minimum C athode Curr ent f or R egulation Off-State C athode C urr ent D ynamic Impedanc e N ote: Tmin= 0 ,Tmax=+70 http://www.SeCoSGmbH.com/ mV/V IK=10mA uA uA mA uA IK=10mA,R1=10K ,R 2= IK=10mA,R1=10K ,R 2= TA=Full Temperature VKA=VREF VKA=36V,VREF=0 VKA=VREF,IK=1 to 100mA,F 1.0KH z Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 1 of 3 TL431 Elektronische Bauelemente 3-Terminal Adjustable Shunt Regulator Functional Block Diagram & Symbol Test Circuits Characteristics Curve http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 3 TL431 Elektronische Bauelemente 3-Terminal Adjustable Shunt Regulator V V =5V V V http://www.SeCoSGmbH.com Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 3 of 3