Shantou Huashan Electronic Devices Co.,Lt 3-TERMINAL ADJUSTABLE VOLTAGE REGULATOR HTL431 █ Description The HTL431are three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges The output voltage may be set to any value between VREF (approximately 2.5 volts)and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0.2W Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications. █ Features Equivalent Full-Range Temperature Coefficient of T50PPM/ ℃ TO-92 Typical Programmable Output Voltage to 36 Volts Sink current Capability of 1.0 to 100mA Low Dynamic Output Impedance 0.20Typical Low Output Noise Voltage Fast Turn-on Response █ Absolute Maximum Ratings（Ta=25℃） T j ——Junction Temperature……………………………… 150℃ Tstg——Storage Temperature Range…………………… -65~150℃ PD——Power Dissipation D,LP Suffix Package…………… 770mW VKA——Cathode Voltage………………………………………… 37V IKA——Cathode Current Range (Continuous) ……… -100~150mA IREF——Reference lnput Current Range………………… -0.05~10mA █Lntemal Block Diagram █ Typical Application Figure2 Temperature Compensated 1―R（REF） 2―A（ANODE） 3―K（CATHKODE） Shantou Huashan Electronic Devices Co.,Lt HTL431 █ Electrical Characteristics（TA=25℃,unless otherwise specified） Symbol VREF Perameter Reference lnput Voltage Min Typ Max Unit Conditions 2440 2495 2550 mV VKA=VREF，IK=10mA 4.5 17 mV TA=Full Range -1.0 -2.7 Deviation of Reference VREF/T Lnput Voltage OverTemperature(Note 1) Ratio of Change in ΔVREF/Δ ΔVKA =10V-VREF Reference lnput Voltage mV/W VKA IK =10mA To the Change in -0.5 -2 ΔVKA =36V-10V 1.5 4 μA IK=10mA,R1=10KΩ R2=∝ 0.4 1.2 μA TA=Full Range 0.45 1.0 mA VKA=VREF Off-Stage Cathode Current 0.05 1.0 μA VKA=36V VREF =0 Dynamic lmpedance (Note 2) 0．15 0.5 Ω Cathode Voltage IREF Reference lnput Current Deviation of Reference IREF/T Lnput Current Over Full Temperatature Range Mininmum Cathode Cur-rent IKA（MIN） for IKA（OFF） VKA=VREF IK=1mA-100mA ZKA F≤1khz Shantou Huashan Electronic Devices Co.,Lt █ Typical Perfomance Characteristics HTL431