器件名称: TL431XA3
功能描述: Adjustable Precision Shunt Regulators
文件大小: 170.21KB 共6页
简 介:CYStech Electronics Corp.
Adjustable Precision Shunt Regulators
Spec. No. : C502A3 Issued Date : 2003.03.26 Revised Date : 2005.06.29 Page No. : 1/6
TL431XA3
Description
The TL431 series are three-terminal adjustable regulators with guaranteed TO-92 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 0.2. 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 Operating Temperature Range Storage Temperature Range
TL431A3
Symbol VKA IK IREF PD Topr Tstg
Value 37 -100~+150 0.05~+10 770 0~+70 -65~+150
Unit V mA mA mW °C °C
CYStek Product Specification
CYStech Electronics Corp.
Functional Block Diagram
Functional Block Diagram :
Cathode Reference VREF + Anode
Spec. No. : C502A3 Issued Date : 2003.03.26 Revised Date : 200……