National semiconductor LM117HV/LM317HV 3-Terminal Adjustable Regulator handbook(1)
Contents
1. Typical Applications Continued High Gain Amplifier LM117HV R2 2 4 OUTPUT INPUT DS009062 18 Low Cost 3A Switching Regulator Q1 2N3792 8V 35V R4 R3 5k 240 C1 OUTPUT Re 5OuFt ADJUST 15 tSolid tantalum Core Arnold A 254168 2 60 turns 4A Switching Regulator with Overload Protection 3 LM195 IN PARALLEL tSolid tantalum Core Arnold A 254168 2 60 turns 1 8V TO 32V DS009062 19 www national com AHZLENT AHZ LENT LM117HV LM317HV Typical Applications Continued Precision Current Limiter Tracking Preregulator LM317HV R2 720 VIN DS009062 21 0 8Q lt R1 lt 1200 OUTPUT ADJUST DS009062 22 Adjustable Multiple On Card Regulators with Single Control LM117HV LM117HV LM117HV VIN VIN VIN VOUT Vout ADJ a ee ee eed DS009062 23 All outputs within 100 mV tMinimum load 10 mA AC Voltage Regulator 12V Battery Charger LM317HV LM317HV Rg VIN 1000 uF DS009062 25 R2 Rs sets output impedance of charger Zout Rs Use of Rg allows low charging rates with fully charged battery 1M317HV The 1000 uF is recommended to filter out input transients DS009062 24 www national com 10 Typical Applications continued Current Limited 6V Charger LM317HV 50 mA Constant Current Battery Charger y LM317HV 9V TO 60V VIN I DS009062 26 2N2222 Adjustable 4A Regulator LM317HV VI V V Le2. VIN DS009062 28 Sets peak current 0 6A for 19 The 1000 UF is recommended to filter out input transients 4 5V TO 25V DS009062 27 11 www national com AHZLENT AHZ LENT LM117HV LM317HV Connection Diag rams See Physical Dimension section for further information TO 3 Metal Can Package ADJUSTMENT VIN DS009062 29 Case is Output Bottom View Order Number LM117HVKSTL 883 See NS Package Number K02C Order Number LM317HVK STEEL See NS Package Number K02A www national com TO 39 Metal Can Package TO 220 Plastic Package O INPUT O e ADJUSTMENT Vout OUTPUT DS009062 30 Case is Output Bottom View Order Number LM117HVH LM117HVH 883 or LM317HVH See NS Package Number H03A ADJ VIN Vout DS009062 31 Front View Order Number LM317HVT See NS Package Number T03B Physical Dimensions inches millimeters unless otherwise noted 0 350 0 370 Sia 8 890 9 398 0 315 0 335 a pik 0 165 0 185 8 001 8 509 0 050 4 191 4 699 1 270 MAX aa A 0 025 UNCONTROLLED 0 635 LEAD DIA SEATING PLANE 0 500 12 70 are 0016 0019 iA qyp 0 406 0 483 0200 y 6 080 0 100 2 540 0 029 0 040 0 737 1 016 0 100 0 028 0 034 2 540 0 711 0 864 va HO3A REV B Order Number LM117HVH LM117HVH 883 or LM317HVH NS Package Number H03A 0 325 0 352 0 420 0 500 8 26 8 94 10 67 12 70 0 980 1 020 24 89 25 91 0 060 0 07
3. 0 V lt Vin Vout lt 60V Note 4 1 20 1 25 1 30 1 2 10 MA lt lour Imax P lt Pmax Line Regulation 3 0V lt Vin Vour lt 60V IL 10 mA Note 3 Load Regulation 10 MA lt lour lt Imax Note 3 Temperature Stability Twin lt Ty lt Tmax Minimum Load Current Vin Vout 60V Current Limit Vin Vout lt 15V K T Packages H Package Vin Vour lt 60V K T Packages H r RMS Output Noise of Vour Ripple Rejection Ratio Vout TOV f 120 Hz Caps 10 du Long Term Stabiliy Thermal Resistance H Package Junction to Case T Package K Package Thermal Resistance H Package Junction to Ambient T Package no heat sink K Package Operating Junction Temperature Range LM117HV LM317HV Storage Temperature Lead Temperature Soldering 10 sec ESD Tolerance Note 5 55 C to 150 C 0 C to 125 C 65 C to 150 C 300 C 2000V Come LM31 SrA Units 0 0 0 a IN WN C W C W C W C W C W C W Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur Operating Ratings indicate conditions for which the device is functional but do not guarantee specific performance limits Note 2 Unless otherwise specified these specifications apply 55 C lt Ty lt 150 C for the LM117HV and 0 C lt Ty lt 125 C for the LM317HV Vin Voyt 5V and lour 0 1A for the TO 39 package and lout 0 5A f
4. resistor R2 giv ing an output voltage of DS009062 5 FIGURE 1 Since the 100 pA current from the adjustment terminal repre sents an error term the LM117HV was designed to minimize lapy and make it very constant with line and load changes To do this all quiescent operating current is returned to the output establishing a minimum load current requirement If there is insufficient load on the output the output will rise External Capacitors An input bypass capacitor is recommended A 0 1 uF disc or 1 uF solid tantalum on the input is suitable input bypassing for almost all applications The device is more sensitive to the absence of input bypassing when adjustment or output capacitors are used but the above values will eliminate the possiblity of problems The adjustment terminal can be bypassed to ground on the LM117HV to improve ripple rejection This bypass capacitor prevents ripple from being amplified as the output voltage is increased With a 10 uF bypass capacitor 80 dB ripple rejec tion is obtainable at any output level Increases over 10 uF do not appreciably improve the ripple rejection at frequen cies above 120 Hz If the bypass capacitor is used it is sometimes necessary to include protection diodes to prevent the capacitor from discharging through internal low current paths and damaging the device In general the best type of capacitors to use are solid tanta lum Solid tantalum capacitors have low impedance e
5. 0 1 52 1 78 0 151 0 161 3 84 4 09 2X 0 495 0 510 12 57 12 95 7 0 660 0 670 16 76 17 02 0 880 0 915 22 35 23 24 0 760 0 775 19 30 19 69 1 177 1 197 29 90 30 40 Xx 0 038 0 043 0 97 1 09 UNCONTROLLED 0 210 0 220 ae A 028 0 116 pees 4 27 4 52 5 33 5 59 l 0 64 2 95 iii _ 0 425 0 435 SEATING PLANE KOZA EEE 10 80 11 05 Metal Can Package K Order Number LM317HVK STEEL NS Package Number K02A 13 www national com AHZLENT AHZ LENT LM117HV LM317HV Physical Dimensions inches millimeters unless otherwise noted Continued 0 285 0 305 7 24 7 75 0 420 0 500 10 67 12 70 0 980 1 020 24 89 25 91 0 060 0 070 2x g0 151 0 161 1 52 1 78 3 84 4 09 0 660 0 670 16 76 17 02 0 495 0 510 R 12 57 12 95 g 0 880 0 915 22 35 23 24 0 760 0 775 9 19 30 19 69 1 177 1 197 PETA 29 90 30 40 2X OPO 0 038 0 043 2X 0 97 1 09 UNCONTROLLED 0 210 0 220 0 168 0 178 I 0 085 5 33 5 59 2X R 14 27 4 52 0 76 X 2 16 _ 0 425 0 435 SEATING PLANE Ko2c REV B 10 80 11 05 Metal Can Package K Mil Aero Product Order Number LM117HVKSTL 883 NS Package Number K02C 0 240 0 260 _ 0 330 0 350 6 10 6 60 8 38 8 89 0 10070 120 g 0 149 0 153 2 54 3 05 3 78 3 89 e 0 090 0 110 0 400 9 o05 2 29 2 79 0 190 0 210 0 38 10 16 2013
6. 0 0 Mivo og April 2000 National Semiconductor LM117HV LM317HV 3 Terminal Adjustable Regulator General Description Also it makes an especially simple adjustable switching regulator a programmable output regulator or by connecting The LM117HV LM317HV are adjustable 3 terminal positive 4 fixed resistor between the adjustment and output the voltage regulators capable of supplying in excess of 1 5A LM117HV can be used as a precision current regulator Sup over a 1 2V to 57V output range They ale exceptionally plies with electronic shutdown can be achieved by clamping easy to use and require only two external resistors to setthe the adjustment terminal to ground which programs the out output voltage Further both line and load regulation are bet put to 1 2V where most loads draw little current ter than standard fixed regulators Also the LM117HV S the LM117HVK STEEL and LM317HVK STEEL are pack packaged in standard transistor packages which are easily adei jan standard TO rane clor nackaaes while ihe mounted and handled g p TE p LM117HVH and LM317HVH are packaged in a solid Kovar In addition to higher performance than fixed regulators the pase TO 39 transistor package The LM317HVT uses a TO LM117HV series offers full overload protection available only 999 plastic package The LM117HV is rated for operation in IC s Included on the chip are current limit thermal over from _55 C to 150 C and the LM317HV from 0
7. 4 83 5 33 0 048 0 055 0 130 0 160 1 22 1 40 PIN 1 ID 3 30 4 06 TYP 1 005 1 035 0 027 0 037 25 53 26 29 0 69 0 94 TYP 7 0 007 0 18 70 0 525 0 555 0 015 oc oo1 0 38 003 13 34 14 10 0 175 0 185 4 45 4 70 0 6 Sa 0 010 0 25 0 105 20 015 2 67 L038 0 048 0 052 1 22 1 32 SEATING PLANE TAPERED SIDES 1 TO3B REV L Order Number LM317HVT NS Package Number T03B www national com 14 Notes Jojeinbay ajqeisnipy jeulwsel AHZLENT AHZ LENT LIFE SUPPORT POLICY NATIONAL S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which a are intended for surgical implant support device or system whose failure to perform into the body or b support or sustain life and can be reasonably expected to cause the failure of whose failure to perform when properly used in the life support device or system or to affect its accordance with instructions for use provided in the safety or effectiveness labeling can be reasonably expected to result in a significant injury to the user National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Asia Pacific Customer Japan
8. C to load protection and safe area protection All overload protec 495 C tion circuitry remains fully functional even if the adjustment terminal is disconnected Normally no capacitors are needed unless the device is situ ated more than 6 inches from the input filter capacitors in a which case an input bypass is needed An optional output capacitor can be added to improve transient response The M adjustment terminal can be bypassed to achieve very high Load regulation typically 0 1 ripple rejections ratios which are difficult to achieve with m Current limit constant with temperature standard 3 terminal regulators m 100 electrical burn in E E E E E Features Adjustable output down to 1 2V Guaranteed 1 5A output current Line regulation typically 0 01 V Besides replacing fixed regulators the LM117HV is useful in Eliminates the need to stock many voltages a wide variety of other applications Since the regulator is Standard 3 lead transistor package floating and sees only the input to output differential volt 80 dB ripple rejection age supplies of several hundred volts can be regulated as Output is short circuit protected long as the maximum input to output differential is not ex Pe Pibduci Enhancsmentiested ceeded i e do not short the output to ground Jojeinbay ajqeisnipy jeulwsel AHZLENT AHZ LENT Typical Applications 1 2V 45V Adjustable Regulator LM117HV Vin 48V DS009062 1 Full
9. Ltd Americas Fax 49 0 180 530 85 86 Response Group Tel 81 3 5639 7560 Tel 1 800 272 9959 Email europe support nsc com Tel 65 2544466 Fax 81 3 5639 7507 Fax 1 800 737 7018 Deutsch Tel 49 0 69 9508 6208 Fax 65 2504466 Email support nsc com English Tel 44 0 870 24 0 2171 Email ap support nsc com www national com Frangais Tel 33 0 1 41 91 8790 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications
10. ective line resis tance will be 0 05Q 1 R2 R1 or in this case 11 5 times worse Figure 2 shows the effect of resistance between the regula tor and 2400 set resistor LM117HV DS009062 6 FIGURE 2 Regulator with Line Resistance in Output Lead With the TO 3 package it is easy to minimize the resistance from the case to the set resistor by using two separate leads to the case However with the TO 5 package care should be taken to minimize the wire length of the output lead The ground of R2 can be returned near the ground of the load to provide remote ground sensing and improve load regulation Protection Diodes When external capacitors are used with any IC regulator it is sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator Most 10 uF capacitors have low enough internal series resistance to deliver 20A spikes when shorted Although the surge is short there is enough energy to damage parts of the IC When an output capacitor is connected to a regulator and the input is shorted the output capacitor will discharge into the output of the regulator The discharge current depends on the value of the capacitor the output voltage of the regu lator and the rate of decrease of Vin In the LM117HYV this discharge path is through a large junction that is able to sus tain 15A surge with no problem This is not true of other types of positive reg
11. es R2 Vout 1 25V 1 ze lapJR2 Note D1 protects against C1 D2 protects against C2 Typical Applications Slow Turn On 15V Regulator LM117HV VOUT V Iy 15V 1N4002 DS009062 9 DS009062 8 Adjustable Regulator with Improved Ripple Rejection LM117HV VIN D1 1N4002 1uFt DS009062 10 tSolid tantalum Discharges C1 if output is shorted to ground www national com 6 Typical Applications Continued High Stability 10V Regulator LM117HV LM329A DS009062 11 0 to 30V Regulator LM117HV VIN 35V 10V DS009062 13 Full output current not available at high input output voltages High Current Adjustable Regulator tSolid tantalum 3 LM195 S IN PARALLEL 1N4002 Minimum load current 30 mA Optional improves ripple rejection Power Follower 10V 40V INPUT OUTPUT 0 6A LM117HV DS009062 14 VOUT DS009062 12 www national com AHZLENT AHZ LENT LM117HV LM317HV Typical Applications Continued 5A Constant Voltage Constant Current Regulator MJ4502 C2 CURRENT 100 pF L ADJUST LM317HV OUTPUT 1 2V 30V 35V LM301A VOLTAGE 10uF ADJUST DS009062 15 tSolid tantalum Lights in constant current mode 1A Current Regulator 1 2V 20V Regulator with LM317HV Minimum Program Current LM117HV Vout 1 2k R2 20k DS009062 16 DS009062 17 Minimum load current 4 mA www national com 8
12. om Current Limit PACKAGE DEVICES N OUTPUT CURRENT A INPUT OUTPUT DIFFERENT IAL V DS009062 33 Temperature Stability 1 260 1 250 1 240 REFERENCE VOLTAGE V N w o 1 220 75 50 25 0 25 50 75 100 125 150 TEMPERATURE C DS009062 36 Ripple Rejection RIPPLE REJECTION dB FREQUENCY Hz DS009062 39 Line Transient Response OUTPUT VOLTAGE DEVIATION V INPUT VOLTAGE CHANGE V TIME us DS009062 42 Adjustment Current ADJUSTMENT CURRENT uA 60 55 50 45 40 35 75 50 25 0 25 50 75 100 125 150 TEMPERATURE C Ds009062 34 Minimum Operating Current QUIESCENT CURRENT mA INPUT OUTPUT DIFFERENTIAL V DS009062 37 Ripple Rejection RIPPLE REJECTION dB 1 00 80 60 40 20 0 01 0 1 1 10 OUTPUT CURRENT A DS009062 40 Load Transient Response OUTPUT VOLTAGE DEVIATION V LOAD CURRENT A 3 2 1 0 TIME us DS009062 43 Application Hints In operation the LM117HV develops a nominal 1 25V refer ence voltage Vref between the output and adjustment ter minal The reference voltage is impressed across program resistor R1 and since the voltage is constant a constant current then flows through the output set
13. or the TO 3 and TO 220 packages Although power dissipation is internally limited these specifications are applicable for power dissipations of 2W for the TO 39 and 20W for the TO 3 and TO 220 Imax is 1 5A for the TO 3 and TO 220 and 0 5A for the TO 39 package Note 3 Regulation is measured at constant junction temperature Changes in output voltage due to heating effects must be taken into account separately Pulse test ing with low duty cycle is used Note 4 Refer to RETS117HVH for LM117HVH or RETS117HVK for LM117HVK military specificatioins Note 5 Human body model 1 5 kQ in series with 100 pF www national com AHZLENWNT AHZ LENT LM117HV LM317HV Typical Performance Characteristics Output capacitor 0 uF unless otherwise noted Load Regulation 0 2 o N an OUTPUT VOLTAGE DEVIATION gt co gt 1 0 75 50 25 0 25 50 75 100 125 150 Dropout 3 0 2 5 2 0 INPUT OUTPUT DIFFERENTIAL V 1 0 TEMPERATURE C DS009062 32 Voltage AVgyT 100 mV 75 50 25 0 25 50 75 100 125 150 TEMPERATURE C DS009062 35 Ripple Rejection 100 80 60 40 RIPPLE REJECTION dB 20 Vin VouT 5V 1 500 mA f 120 Hz T 25 C OUTPUT VOLTAGE V DS009062 38 Output Impedance S N OUTPUT IMPEDANCE 92 FREQUENCY Hz DS009062 41 www national c
14. output current not available at high input output voltages tOptional improves transient response Output capacitors in the range of 1 uF to 1000 uF of aluminum or tantalum electrolytic are commonly used to provide improved output impedance and rejection of transients Needed if device is more than 6 inches from filter capacitors R2 ttVout 1 25V 1 ze lapu R2 2000 National Semiconductor Corporation DS009062 www national com LM117HV LM317HV Typical Applications continued Digitally Selected Outputs LM117HV Vin Vout V aii OUT R1 240 INPUTS DS009062 2 Sets maximum Vout www national com 5V Logic Regulator with Electronic Shutdown LM117HV Vin 7V 35V TTL Ds009062 3 Min output 1 2V Absolute Maximum Ratings Note 1 If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Note 4 Power Dissipation Internally limited Input Output Voltage Differential 60V 0 3V Electrical Characteristics Note 2 Parameter Conditions Note 3 10 mA Line Regulation Ti 25 6 8V 2 Vin Vane 00V Wiadin Load Regulation Ty 25 C 10 MA lt lout lt Imax rae Thermal Regulation Ty 25 C 20 ms Pulse 0 03 0 07 Adjustment Pin Gurren ee l ef Adjustment Pin Current Change 10 mA lt lL lt Imax 3 0 V lt Vin Vout lt 60V Reference Voltage 3
15. ulators For output capacitors of 25 uF or less there is no need to use diodes The bypass capacitor on the adjustment terminal can dis charge through a low current junction Discharge occurs when either the input or output is shorted Internal to the LM117HV is a 50Q resistor which limits the peak discharge current No protection is needed for output voltages of 25V www national com AHZLENT AHZ LENT LM117HV LM317HV Application Hints Continued or less and 10 uF capacitance Figure 3 shows an LM117HV with protection diodes included for use with outputs greater than 25V and high values of output capacitance Current Limit Internal current limit will be activated whenever the output current exceeds the limit indicated in the Typical Perfor mance Characteristics However if during a short circuit con dition the regulator s differential voltage exceeds the Abso lute Maximum Rating of 60V e g Vin 60V Vour OV internal junctions in the regulator may break down and the device may be damaged or fail Failure modes range from an apparent open or short from input to output of the regulator to a destroyed package most common with the TO 220 package To protect the regulator the user is advised to be aware of voltages that may be applied to the regulator during fault conditions and to avoid violating the Absolute Maxi mum Ratings Schematic Diagram D1 1N4002 DS009062 7 FIGURE 3 Regulator with Protection Diod
16. ven at high frequencies Depending upon capacitor construction it takes about 25 uF in aluminum electrolytic to equal 1 uF solid tantalum at high frequencies Ceramic capacitors are also good at high frequencies but some types have a large decrease in capacitance at frequencies around 0 5 MHz For this reason 0 01 uF disc may seem to work better than a 0 1 uF disc as a bypass Although the LM117HV is stable with no output capacitors like any feedback circuit certain values of external capaci tance can cause excessive ringing This occurs with values between 500 pF and 5000 pF A 1 uF solid tantalum or 25 uF aluminum electrolytic on the output swamps this effect and insures stability Any increase of load capacitance larger than 10 uF will merely improve the loop stability and output impedance Load Regulation The LM117HV is capable of providing extremely good load regulation but a few precautions are needed to obtain maxi mum performance The current set resistor connected be tween the adjustment terminal and the output terminal usu ally 240Q should be tied directly to the output of the regulator rather than near the load This eliminates line drops from appearing effectively in series with the reference and degrading regulation For example a 15V regulator with 0 05Q resistance between the regulator and load will have a load regulation due to line resistance of 0 05Q x I1 If the set resistor is connected near the load the eff
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National semiconductor LM117HV/LM317HV 3 Terminal Adjustable Regulator handbook(1)