STL431 SECOS | Alldatasheet
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Technical content
-100~+150 -65~+150 Cathode Current Range (Continuous) Storage Temperature Range Tj ,Tstg IKA C o Operating Junction And Parameter Symbol Ratings Unit V mA VKA 37 Absolute Maximum Ratings at TA=25 C Total Power Dissipation PD 1.0 o W Reference Input Current Range IREF -0.05~+10 mA http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Aug-2002 Rev. B Page 1 of 3
Description
The STL431 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. Elektronische Bauelemente STL431 3-Terminal Adjustable Shunt Regulator SOT-89 A 4.4 4.6 G 3.00 REF. B 4.05 4.25 H 1.50 REF. C 1.50 1.70 I 0.40 0.52 D 1.30 1.50 J 1.40 1.60 E 2.40 2.60 K 0.35 0.41 F 0.89 1.20 L 5° TYP. M 0.70 REF. Millimeter Millimeter Characteristics at Ta = 25:::: Parameter Symbol Min Typ. Max. Unit Test Conditions Cathode Voltage VKA VREF - 36 V Cathode Current IKA 1 - 100 mA Reference Input Voltage STL431C 2.445 STL431B 2.470 STL431A VREF 2.483 2.495 2.545 2.495 2.520 VKA= VREF,IK=10mA 2.495 2.507 V Deviation of reference Input Voltage VKA=VREF,IK=10mA Over temperature(note) VREF/T - 4.5 17 mV Tmin Ta Tmax Ratio of Change in Reference Input - -1.0 -2.7 VKA=10V~VREF Voltage to the Change in Cathode Voltage VREF/VKA - -0.5 -2.0 mV/V IK=10mA VKA=36V~10V Reference Input Current IREF - 1.5 4 uA IK=10mA,R1=10K,R2= Deviation of reference Input Current IK=10mA,R1=10K,R2= Over Full Temperature Range IREF/T - 0.4 1.2 uA TA=Full Temperature Minimum Cathode Current for Regulation IKA(min) - 0.45 1.0 mA VKA=VREF Off-State Cathode Current IKA(off) - 0.05 1.0 uA VKA=36V,VREF=0 Dynamic Impedance ‡ZkA - 0.15 0.5 VKA=VREF,IK=1 to 100mA,F1.0KHz Note: Tmin= 0,Tmax=+70
http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Aug-2002 Rev. B Page 2 of 3 Elektronische Bauelemente STL431 3-Terminal Adjustable Shunt Regulator Functional Block Diagram & Symbol Test Circuits Characteristics Curve
Any changing of specification will not be informed individual http://www.SeCoSGmbH.com Elektronische Bauelemente 01-Aug-2002 Rev.B Page 3 of 3 V V =5V V V STL431 3-Terminal Adjustable Shunt Regulator