LH7001

LH7001 NSC | Alldatasheet

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Technical content

o .

5 A National PRELIMINARY

Positive/Negative Adjustable Regulator General Description The LH7001 combines a positive and a negative adjustable _ input to output differential voltage, supplies of several hun- regulator in one package. Both can supply 100 mA over a__dred volts can be regulated as long as the maximum input- 1.2V to 37V output range. It is exceptionally easy to use and _to-output differential is not exceeded. requires only two external resistors on each side to set the = The LH7001 is available in a standard molded 8 pin DIP as output voltage. LH7001CN with a temperature range of — 40°C to + 125°C, In addition to high performance both sides of the LH7001 and in an 8 pin TO-5 package as LH7001H with a tempera- Offer full overload protection. included are current limit, ther- ture range from —55°C to + 150°C. mal overload protection and safe area protection. All over- load protection circuitry remains fully functional even ifthe Features adjustment terminal is disconnected. @ Dual output down to +4.2V The LH7001 is intended for voltage and current regulation in ™ Guaranteed +100 mA output current systems where both polarities are required. This is, €.9., thew Line regulation typically 0.01%/V case with supplies for op-amps and buffers, where the ic i, LH7001 can also be used to protect from overloads. m Load regulation ‘ypically 0.5% Normally, for stable operati \\ itor | & Current limit constant with temperature lormally, for ration, no external capacitor is a A needed on the positive side, The negative side requires only : eehaa aetna 8 pin TO-5 packages a single 1 pF solid tantalum capacitor. On both sides, larger ipple rejection output capacitors can be added to improve transient re Output is short circuit protected ‘sponse. In case the device is further than 6 inches from the . input filter capacitors, input bypass capacitors are needed. Applications The adjustment terminals can be bypassed to achieve very ™ Dual precision voltage regulator high ripple rejection. ® Dual precision current limiter The positive and the negative regulator are electrically sep- _ @ Voltage and current protection for op-amps arated and can therefore be used independent from each =m Dual tracking regulator other. Since each regulator is “floating” and sees only the Connection Diagrams Plastic Package Metal Can Package (Dual-In-Line, 8 Pin) (TO-5, 8 Pin) | 1 5 POS. Vy POS. Vout POS, ADJUST — i 2 0 n/c POS. Viq pos. V, NES. Vy Snic a @ 1) Nes. anwst NEG. Voyr Sec. ADJUST TUK/10127-1 n/c NEG. V, Top View QO O " Order Number LH7001CN See NS Package Number NO8E @: () POS, ADJUST O NEG. Voyr n/c TUK/10127-2 Top View Order Number LH7001H See NS Package Number HO8D 1-18

r . = Absolute Maximum Ratings a if Military/Aerospace specified devices are required, Storage Temperature —s6Cto+150C | 2 Please contact the National Semiconductor Sales Lead Temperature (Soldering) Office/Distributors for avaliablilty and specifications. LH7001CN 4 sec. to 260°C Power Dissipation Internally Limited LH7001H 10 sec. to 300°C Input-Output Voltage Differential 40v ESD Rating TBD Operating Junction Temperature LH7001CN —40°C to +125°C LH7001H —55°C to + 150°C Electrical Characteristics (Note 1) (uniess otherwise noted, these specifications apply: —55°C < Tj < + 150°C for the LH7001 and —40°G < Tj < +125°C for the LH7001C, |Vin — Vout! = 5V and Ioyt = 40 mA. Although power dissipation is internally limited, these specifications are applicable for power dissipations up to 600 mW for LH7001H and up to 900 mW for LH7001CN, Imax is 100 mA. Specifications apply for both positive and negative current limiter. Units Parameter Conditions Typ renew oeNetea) (Max. Unless Otherwise Noted) Line Regulation 3V < |Vin — Vourl < 40V | Tj = 25°C | 0.01 0.04 eH (Note 4) 0.02 0.07 Load Regulation 5mA < lout < MAX T= 25°C 0.8 % (Note 4), P < 625 mw 1.5 AdstmentPinGurent | | Bo | too Pn Adjustment Pin 5mA <I, < 100mA A Current Change 3V < [Vin — Vourl < 40V, P < 625 mW Ls Reference Voltage 3V < |Vin — Vourl < 40V, (Note 4) v(Min) 5 mA < lout < 100mA Current Limit 3V < [Vin — Voutl < 13V 300 mA 100 mA (Min) IMin — Voutl < 40v mA mA (Min) Thermal Regulation | T; = 25°C, 10 ms Pulse [oof o2 [| | %/W Minimum Load Current | {Vin — Vourl < 40V [as{| 5s | | mA RMS Output Noise, Tj = 25°C, 10 Hz < f < 10 kHz % of Vout Ripple Rejection Ratio | Vout = 10V,f = 120Hz Caps = 0 pF 65 dB Capy = 10 pF 80 Thermal Resistance H Package (TO-5) [ao] | | “C/W Junction to Ambient N Package (DIP) % Thermal Resistance | H Package (TO-5) 5 “cw Junction to Case Note 1: Boldface limits are guaranteed over full temperature range. Operating junction temperature range of LH7001CN is —25°C to + 125°C, and LH7001H is 55°C to + 150°C. Note 2: Tested limits are guaranteed and 100% production tested. Note 3: Design limits are guaranteed (but not production tested) over the indicated temperature or temperature range. These limits are not used to calculated ‘outgoing quality level. Note 4: This parameter is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects ‘are covered under the specification for thermal regulation, 1-19

3 Typical Performance Characteristics

Positive Regulator Negative Regulator Positive Regulator Min. Load Regulation Load Regulation Operating Current we vs Temperature oo“ Temperature vs Input-Output Differential e LUT et , “HA EHH pep tii} de Ha 2 Oc PHA re) a 2 ost eon [TT zal WL od Sa i Sean oe) fo ee Fal r Eo van “0 LTT] aL ee] TT TY wen i TS -0O-B 0 B W 7 100 125 150 “3-0-5 0 DB WM 7 1015 10 ° 0 a » “0 TEMPERATURE (°C) TEMPERATURE (°C) INPUT OUTPUT DIFFERENTIAL (¥) Neg. Regulator Min. Pos. Regulator Output Neg. Regulator Output Operating Current vs Current Limit vs Current Limit vs Input-Output Differential os scnnnnnnl os Mr oT H H Paes Oa | | ea titi tt zt [ti 1715 a Pee POR erage pees] 5 of TS of WI | [fees LF | vease PY SCLC LLL eesef ET sUL Les | o 10 Da » « o 10 wn x» “0 oO 10 2 » “o INPUT = OUTPUT DIFFERENTIAL (¥) (INPUT = OUTPUT DIFFERENTIAL (V) INPUT = OUTPUT DIFFERENTIAL (V) Pos. Regulator Negative Regulator Positive Regualtor Dropout Voltage Dropout Voitage Adjustment Pin s vs Temperature s vs Temperature © Current vs Temperature = lt | sy Iti] gel TTT Pett ; fe eee pea sneener a Heese Es | FEEECTH | Es | germ | 5 oe tet | peeiseeT OO) ge ee FL TL IT FLL LITT wlll B-O-B 0 DB WM 7 1015190 3-0 -B 0 BH 75 10 15 150 “75-50-25 0 25 50 75 100125150 ‘TEMPERATURE (°C) ‘TEMPERATURE (°C) TEMPERATURE (°C) Negative Regulator Positive Regulator Negative Regulator Adjustment Pin Reference Voltage Reference Voltage © Current vs Temperature i Stability vs Temperature i Stability vs Temperature Li [TTT ttt LT TT TT TTT) 3 rt | Sm LLL eae i wl Le yg LiTTTT tT | g [Ler Tw e LLL TTT TI xf Cee TT Bef tT PTTL & CoAT EN CPP pea be EEE gs Ree ee LTT | ett it OO LO wlll Maceo 0 wT OEE Scaled 0 15 OID Donic 8 5 WO 78 WII TEMPERATURE (°C) ‘TEMPERATURE (°C) TEMPERATURE (°C) 1-20

3 Stability (continued) Improved Ripple Rejection

9 tors 80 dB ripple rejection is obtainable at any output level. fT Vo 138 ing the device (Figure 6). **FIGURE 4. LH7001 Supp: an Op-Amp* ~** | " C) baleen (0) ‘on damage the device. TuKs10127-9 the device with discharge diodes. Ai, Ct Stabilize the negative side. lout = +1.25 V/Rs. FIGURE 5. LH7001 as Dual Current Limiter*

POS, HALF 25 uF times worse. = tor and the connection of the set resistor.

5 Tr 25 ur

FIGURE 8. Positive Regulator with Line **FIGURE 7. LH7001 with Large Capacitive Loads* resistor, by using two separate leads to the output pin. The** The discharge current depends on the value of the capaci- provide remote ground sensing and improve load regulation. i to use protection diodes. accuracy, 6.9. to 2 ka. : as a bypass. applied. The LH7002 specification is 0.2 %/W, maximum.

LH7001CN (DIP) LH7001H (TO-5) 8 7 POS. HALE 1 8 “p0S. HALE 1 “n OS. HALE Nour Va ros Nour 8 3 +40. AD. TUK/10127-20 TUK/10127-22 - snow [49 . [nar |S ‘w LH70010N Your ‘wi LA7001H “Your 5 7 ADI. ADI, TUK/10127-21 TUK/10127-23 For detailed schematic diagrams see LM317L and LM337L datasheets, Typical Applications Dual Current Limiter* Dual Voltage Regulator* +15v wv y 0.1 pF 10 yr Hi KH de 7@ P0S/2 LH7001 sit ™ W ty 28) if f] t3B g3t 168

0 OUT OUT s

0.01 wF 1 fy (1) iE 11k [| / 0.1 uF j ; 0.01 uF MEH fy i ° Hh 0.1 uF wns " 0.01 uF ° © OUTPUT | ° Hi 01 yr Fan 0.01 wF Ot uF IE : | bw O.t uF R 1 ‘UM 4 39 | HH 3 $ our oe aw gs; i) ‘l Wk tour LT nee/2 un7001 6) HHI a our! tZ5 wi 128 ol” tgs 4 moo -15v 3) (6) TLK/10127-24 b wv TLKs10127-25 *Pinout shown for DIP (TO-5 in parenthesis) 1-25

3 Typical Applications (continued)

a Dual Current and Voltage Protection* Vn \\ 0.4 uF hy Ht sape==Z. 7(8) No Vy Ve Vs 8(3) wilde _ Ls asy ig 3 Diode Voltage Vp »w0.6V ours ‘TL/K/10127-27 (1) re~ 12+ Vp R2 ° = Ry = 1 kM (Chosen) Rs Vp js ‘5 Fo= mi( 22-1) i Vi = Ve -loRs 0.01 uF Hh 0.01 pF Ht Rs Re bw— O41 uF F " our ¢ ws 122 ee INO 50) on uF Ht “Yin TU/k/10127-26 *Pinout shown for DIP (TO-5 in parenthesis) 1-26

c 5 . = Typical Applications (continued) 3 Tracking Regulator* = POS. HALF LH7001 7 1 +0 a our O 4, " ®) ADs ‘out 0.1 uF sur & | ‘ 240 Rt = | ourur 10k - ADJUST 5k 4.7K 1 R2 1 10k 00 pF A My 5 “ V “Vy O IN out © “Your (6) “erage 6) loap=5 mA MIN. NEG. HAL Ot uF tar | LH7001 TANTALUM = = ‘TL/K/10127-28 ‘Ay = LM301A, LM307 or LF13741 Only Ry, Ro = Matched resistors with good TC tracking i ‘*Pinout shown for DIP (TO-5 in parenthesis) | + 10V High Stability Regulator* | POS. HALF | Lh = im O ° four 1% | @®) AOd Ro $300k if Py 1% | 0. yr 1.5k | I 6.9V | ~ 6.9¥ 1 15k | 300k ™ - | Rye 3 vy) 1% “Vy © © =10V, . S) baad (5) ad = NEG. HALF tar = Ont 7001 TLK/10127-90 *Pinout shown for DIP (TOS in parenthesis), **To trim the output voltages R; and Rg can be replaced by a series combination of 240 and a 100M potentiometer. 1-27