TL431A3

CYStech Electronics Corp. Adjustable Precision Shunt Regulators www.DataSheet4U.com Spec. No. : C502A3 Issued Date : 2003.03.26 Revised Date : 2008.10.09 Page No. : 1/6 TL431A3 Description TO-92 The TL431A3 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 2.495 volts) and 36 volts with two external resistors. These devices have a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacement for zener diodes in many applications. Features Programmable output voltage Temperature coefficient is 50ppm/°C typical Temperature compensated for operation over full temperature range Low output noise voltage Fast turn on response Pb-free package Classification Rank VREF A 2.495±0.5% B 2.495±1% C 2.495±2% Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified) Characteristics Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Power Dissipation @ TA=25℃ Power Dissipation @ TC=25℃ Thermal Resistance, Junction to Ambient Thermal Resistance, Junction to Case Operating Temperature Range Junction Temperature Range Storage Temperature Range TL431A3 Symbol VKA IK IREF PD PD RθJA RθJC Topr Tj Tstg Value 37 -100~+150 -0.05~+10 700 1.5 178 83 -40~+125 -40~+150 -65~+150 Unit V mA mA mW...