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LM145 датащи(PDF) 2 Page - National Semiconductor (TI) |
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LM145 датащи(HTML) 2 Page - National Semiconductor (TI) |
2 / 6 page Absolute Maximum Ratings If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications (Note 3) Input Voltage 20V Input-Output Differential 20V Power Dissipation Internally Limited Operating Junction Temperature Range LM145 b 55 Cto a150 C LM345 0 Cto a125 C Storage Temperature Range b 65 Cto a150 C Lead Temperature (Soldering 10 sec) 300 C Electrical Characteristics (Note 1) Limits Parameter Conditions LM145 LM345 Units Min Typ Max Min Typ Max Output Voltage Tj e 25 C IOUT e 5 mA b 51 b 50 b 49 b 52 b 50 b 48 V VIN eb75 Line Regulation (Note 2) Tj e 25 C 5 15 5 25 mV b 20V s VIN s b75V Load Regulation (Note 2) Tj e 25 C VIN eb75V 30 75 30 100 mV 5mA s IOUT s 3A Output Voltage b 20V s VIN s b78V 5mA s IOUT s 3A P s 25W b 520 b 480 b 525 b 475 V TMIN s Tj s TMAX Quiescent Current b 20V s VIN s b75V 10 30 10 30 mA 5mA s IOUT s 3A Short Circuit Current VIN eb75V Tj ea25 C 4 55 4 55 A VIN eb20V Tj ea25 C 2 35 2 35 A Output Noise Voltage TA e 25 C CL e 47 mF 150 150 m V 10 Hz s f s 100 kHz Long Term Stability 5 50 5 50 mV Thermal Resistance 22 CW Junction to Case Note 1 Unless otherwise specified these specifications apply b55 C s Tj s a150 C for the LM145 and 0 C s Tj s a125 C for the LM345 VIN e 75V and IOUT e 5 mA Although power dissipation is internally limited electrical specifications apply only for power levels up to 25W For calculations of junction temperature rise due to power dissipation use a thermal resistance of 35 CW for the TO-3 with no heat sink With a heat sink use 2 CW for junction to case thermal resistance Note 2 Regulation is measured at constant junction temperature Changes in output voltage due to heating effects must be taken into account separately To ensure constant junction temperature pulse testing with a low duty cycle is used Note 3 Refer to RETS145K-5V for LM145K-50 military specifications Connection Diagram Metal Can Package TLH7785 – 2 Bottom View Order Number LM345K-50 See NS Package Number K02A Order Number LM145K-50883 or SMD 5962-9064501 See NS Package Number K02C Typical Applications Fixed Regulator TLH7785 – 3 Required for stability For value given capacitor must be solid tantalum 50 mF aluminum electrolytic may be substituted Values given may be in- creased without limit Required if regulator is separated from filter capacitor For value given ca- pacitor must be solid tantulum 50 mF aluminum electrolytic may be substi- tuted 2 |
Аналогичный номер детали - LM145 |
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Аналогичное описание - LM145 |
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