TL431L-0.5%

TL431L-0.5% GOFORD FEATURES Programmable Output Voltage to 40V Low Dynamic Output Impedance 0.27Ω (Typ) SinkCurrentCapabilityof0.1mAto100mA EquivalentFull-RangetemperatureCoefficientof50ppm/℃ Temperature Compensated for Operation ov er Full Rated Operating Temperature Range LowOutputNoiseVoltage FastTurnonResponse TO-92,SOP-8,SOT-89orSOT-23-3packages DESCRIPTION The TL431 is a three-terminal adjustable regulator series with a guaraneed thermal stability over applicable temperature ranges. The output voltage may be set to any value between Vref (approximately 2.5 volts) and 40 volts with two external resistors. These devices have a typical dynamic output impedance of 0.2Ω. Activeoutputcircuitryprovidesa verysharpturnoncharacteristic,makingthesedevicesexcellentreplacement forzenerdiodesinmanyapplications. TheTL431ischaracterizedforoperationfrom-0℃ to+70℃. Pin Configuration HTTP://www.gofordsemi.com TEL：0755-29961262 FAX：0755-29961466 Page 1 TL431L-0.5% GOFORD TO-92 Package Information Symbol A B C D E G H J Dimensions in Millimeters MIN. NOM. MAX. 4.60 4.60 3.55 2.55 1.25 1.27 14.30 0.38 All Dimensions in mm -4.62 3.60 2.60 1.30 1.30 14.32 4.59 4.58 3.50 2.50 -1.24 14.28 HTTP://www.gofordsemi.com TEL：0755-29961262 FAX：0755-29961466 Page 2 TL431L-0.5% GOFORD Symbol Diagram and Block Diagram Symbol Diagram Block Diagram Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified) Characteristic Symbol Value Unit Cathode Voltage VKA 40 V Continuous Cathode Current Range IK -100 ~ 150 mA Reference Input Current Range IREF 0.05 ~ 10 mA Power Dissipatin at 25℃: PD TO-92package(R⊙JA=178℃/W) SOT-23-3Package(R 625℃/W) ⊙J A= Junction Temperature Range TJ Operating Temperature Range Tg 0.7 0.2 0 ~ 150 0 ~ 70 W W ℃ ℃ Storage Temperature Range -65 ~ 150 ℃ TSTG Recommended Operating Conditions Characteristic Symbol Cathode current IK Cathode voltage VKA Min 0.5 VREF Typ HTTP://www.gofordsemi.com TEL：0755-29961262 FAX：0755-29961466 Max 100 40 Unit mA V Page 3 TL431L-0.5% GOFORD Parameter Measurement Information Electrical Characteristics TA =25℃,VKA =VREF, IK = 10 mA unless otherwise noted Parameter Symbol Test Conditions Reference Input Voltage VREF IK=10mA,VKA=VREF △VREF Deviation of Reference Input Voltage over Full Temperature Range Ratio of Chane in △VREF △VKA Reference Input Voltage to the Change in Cathode Voltage Reference Input Current IREF Deviation of Reference Current over Full Temperature Range Minimum Cathode Current for Regulation Off-State Cathode Current Dynamic Impedance I i(DEV) Min. 2.483 Tmin≤Ta ≤Tmax - Max. 2.507 Unit V 3 17 mV △VKA=10V to VREF △VKA=36V to 10V -0.4 -0.4 0.0 0.0 2.7 2.0 mV/V R1=10KΩ, R2=∞ - 1.8 4 μA R1=10KΩ, R2=∞ - 0.4 1.2 μA - 0.25 0.5 mA - 0.17 0.9 μA - 0.27 0.5 Ω IKmin IK off Typ. 2.495 VKA= 40V VREF= 0 │ZKA│ IK=10 mA to 100 mA, f ≤1.0kHz HTTP://www.gofordsemi.com TEL：0755-29961262 FAX：0755-29961466 Page 4