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| 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/ ae 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 1D R REF(c) 2D A ANODE(c) 3D K CATHKODE(c) TO-92 Absolute Maximum Ratings Ta=25ae(c) Tj Tstg PD VKA IKA IREF Junction Temperature - - - 150ae -65~150ae 770mW 37V -100~150mA -0.05~10mA Storage Temperature Range- - Power Dissipation D,LP Suffix Package- Cathode Voltage- Cathode Current Range (Continuous) Reference lnput Current Range- - Lntemal Block Diagram Typical Application Figure2 Temperature Compensated Shantou Huashan Electronic Devices Co.,Lt HTL431 Electrical Characteristics TA=25ae ,unless otherwise specified(c) Perameter Reference lnput Voltage Deviation of Reference VREF/T Lnput Voltage OverTemperature(Note 1) Ratio of Change in -1.0 -2.7 mV/W VKA To the Change in -0.5 Cathode Voltage IREF Reference lnput Current 1.5 4 |I A IK=10mA,R1=10K| R2=O -2 | VKA =36V-10V IK =10mA | VKA =10V-VREF 4.5 17 mV TA=Full Range Min 2440 Typ 2495 Max 2550 Unit mV VKA=VREF Conditions IK=10mA Symbol VREF | VREF/| Reference lnput Voltage Deviation of Reference IREF/T Lnput Current Over Full Temperatature Range Mininmum Cathode Cur-rent IKA IKA MIN(c) 0.4 1.2 |I A TA=Full Range 0.45 for Off-Stage Cathode Current Dynamic lmpedance (Note 2) 0.05 0(R) 15 1.0 1.0 0.5 |I | mA A VKA=VREF VKA=36V VREF =0 VKA=VREF IK=1mA-100mA OFF(c) ZKA FU 1khz Shantou Huashan Electronic Devices Co.,Lt HTL431 Typical Perfomance Characteristics |
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