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LM317HV-MIL Datasheet(PDF) 1 Page - Texas Instruments |
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LM317HV-MIL Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page ( ) OUT ADJ R V = 1.25 V I R R 2 2 1 1 æ ö + + ç ÷ è ø Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LM317HV-MIL SNVSAY1 – JUNE 2017 LM317HV-MIL High Voltage Three-Terminal Adjustable Regulator With Overload Protection 1 1 Features 1 • Up to 60 V Input to Output Differential • 1.5-A Output Current • Line Regulation 0.01%/V (Typical) • Load Regulation 0.1% (Typical) • 80-dB Ripple Rejection (Typical) • Internal Short-Circuit Current Limiting Protection • Thermal Overload Protection • 0 to 125°C Operating Temperature Range 2 Applications • Industrial Power Supplies • PLC Systems • Factory Automation Systems • Building Automation Systems • Battery Charger 1.2-V to 50-V Adjustable Regulator With High Voltage Input *Needed if device is more than 6 inches from filter capacitors. . †Optional—improves transient response †† 3 Description The LM317HV-MIL is an adjustable 3-terminal positive voltage regulator capable of supplying 1.5 A or more currents over a 1.25-V to 57-V output voltage range. It requires only two external resistors to set the output voltage. The LM317HV-MIL is packaged in standard transistor packages that are easily mounted and handled. The LM317HV-MIL offers overload protection like current limit, thermal overload protection and safe area protection, which make the device blowout proof. The overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators. Since the regulator is floating and sees only the input- to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, or in other words, do not short the output to ground. By connecting a fixed resistor between the adjustment and output, the LM317HV-MIL can also be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1.25 V where most loads draw little current. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM317HV-MIL TO-39 (3) 8.255 mm × 8.255 mm TO-3 (2) 19.507 mm × 19.507 mm TO-220 (3) 14.986 mm × 10.16 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. |
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