original creation date: 05/18/95 last update date: 02/17/97 last major revision date: 05/18/95 mjlm140-24-k rev 0b0 microcircuit data sheet voltage regulator, +24 volts at 1a general description the lm140 monolithic 3-terminal positive voltage regulators employ internal current limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. if adequate heat sinking is provided, they can deliver over 1.0a output current. they are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. in addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. it is not necessary to bypass the output, although this does improve transient response. input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply. ns part numbers JL140K-24BYA industry part number lm140 prime die lm140 controlling document 38510/10709(circuit a) rev c processing mil-std-883, method 5004 quality conformance inspection mil-std-883, method 5005 subgrp description temp ( c) o 1 static tests at +25 2 static tests at +125 3 static tests at -55 4 dynamic tests at +25 5 dynamic tests at +125 6 dynamic tests at -55 7 functional tests at +25 8a functional tests at +125 8b functional tests at -55 9 switching tests at +25 10 switching tests at +125 11 switching tests at -55 1
microcircuit data sheet mjlm140-24-k rev 0b0 features - complete specifications at 1a load - internal thermal overload protection - internal short-circuit current limit - output transistor safe area protection 2
microcircuit data sheet mjlm140-24-k rev 0b0 (absolute maximum ratings) (note 1) dc input voltage 40v internal power dissipation (note 2) internally limited maximum junction temperature 150 c storage temperature range -65 c to +150 c lead temperature 300 c esd susceptibility (note 3) 2kv note 1: absolute maximum ratings are limits beyond which damage to the device may occur. operating conditions are conditions under which the device functions but the specification might not be guaranteed. for guaranteed specifications and test conditions see the electrical characteristics. note 2: the maximum allowable power dissipation at any ambient temperature is a function of the maximum junction temperature for operation (tjmax = 150 c), the junction-to-ambient thermal resistance (thetaja), and the ambient temperature (ta). pdmax = (tjmax - ta)/thetaja. if this dissipation is exceeded, the die temperature will rise above tjmax and the electrical specifications do not apply. if the die temperature rises above 150 c, the device will go into thermal shutdown. the junction-to-ambient thermal resistance (thetaja) is 39 c/w. when using a heatsink, thetaja is the sum of the 4 c/w junction-to-case thermal resistance (thetajc) and the case-to-ambient thermal resistance (thetaca) of the heatsink. note 3: human body model, 100pf discharged through 1.5k ohms recommended operating conditions (note 1) temperature range (ta) (note 2) -55 c to +125 c note 1: absolute maximum ratings are limits beyond which damage to the device may occur. operating conditions are conditions under which the device functions but the specification might not be guaranteed. for guaranteed specifications and test conditions see the electrical characteristics. note 2: the maximum allowable power dissipation at any ambient temperature is a function of the maximum junction temperature for operation (tjmax = 150 c), the junction-to-ambient thermal resistance (thetaja), and the ambient temperature (ta). pdmax = (tjmax - ta)/thetaja. if this dissipation is exceeded, the die temperature will rise above tjmax and the electrical specifications do not apply. if the die temperature rises above 150 c, the device will go into thermal shutdown. the junction-to-ambient thermal resistance (thetaja) is 39 c/w. when using a heatsink, thetaja is the sum of the 4 c/w junction-to-case thermal resistance (thetajc) and the case-to-ambient thermal resistance (thetaca) of the heatsink. 3
mjlm140-24-k rev 0b0 microcircuit data sheet electrical characteristics dc parameters symbol parameter conditions notes pin- name min max unit sub- groups vout (1) output voltage vin = 28v, il = -5ma 22.80 25.20 v 1, 2, 3 vin = 28v, il = -1a 22.80 25.20 v 1, 2, 3 vin = 38v, il = -5ma 22.80 25.20 v 1, 2, 3 vin = 38v, il = -1a 22.80 25.20 v 1, 2, 3 vin = 40v, il = -5ma 22.80 25.20 v 1, 2, 3 vin = 40v, il = -0.1a 22.80 25.20 v 1, 2, 3 vrline line regulation 28v < vin < 40v, il = -0.1a -720 720 mv 1, 2, 3 28v < vin < 38v, il = -0.5a -240 240 mv 1, 2, 3 vrload load regulation vin = 30v, -1a < il < -5ma -480 480 mv 1, 2, 3 vin = 40v, -0.1a < il < -5ma -720 720 mv 1, 2, 3 iscd stand by current drain vin = 30v, il = -5ma -7 -0.5 ma 1, 2, 3 vin = 40v, il = -5ma -8 -0.5 ma 1, 2, 3 delta iscd (line) stand by current drain vs. line voltage 28v < vin < 40v, il = -5ma -1 1 ma 1, 2, 3 delta iscd (load) stand by current drain vs. load current -1a < il < -5ma, vin = 30v -0.5 0.5 ma 1, 2, 3 iol overload current forced delta/vout = -2.28v, vin = 28v -4 -1 a 1, 2, 3 ios output short circuit current vin = 30v -2.5 -0.02 a 1, 2, 3 vin = 35v -2 -0.005 a 1, 2, 3 vout (2) output voltage vin = 30v, il = -5ma 1 22.56 25.44 v 2 4
mjlm140-24-k rev 0b0 microcircuit data sheet electrical characteristics dc/ac parameters symbol parameter conditions notes pin- name min max unit sub- groups vout output voltage vin = 30v, il = -5ma 2 22.80 25.20 v 7, 8a, 8b no output noise voltage vin = 30v, il = -0.1a 500 uvrms 7 delta vout/ delta il transient load response delta il = -400ma, vin = 30v, il = -100ma 2.5 mv/ma 7 delta vout/delta vin transient line response vin = 30v, vpulse = 3v, il = -5ma 30 mv/v 7 delta vout/ delta t average temperature coefficient output voltage 25 c < ta < +125 c, vin = 30v, il = -5ma 3 -6 6 mv/c 8a -55 c < ta < 25 c, vin = 30v, il = -5ma 3 -6 6 mv/c 8b delta vin/delta vout ripple rejection vin = 30v, ei = 1vrms at f = 2400hz, il = -350ma 50 db 4 dc parameters: drift values (the following conditions apply to all the following parameters, unless otherwise specified.) dc: "delta calculations performed on jan s and qmlv devices at group b, subgroup 5 only". vout output voltage vin = 28v, il = -5ma -0.120 0.120 v 1 vin = 28v, il = -1a -0.120 0.120 v 1 vin = 38v, il = -5ma -0.120 0.120 v 1 vin = 38v, il = -1a -0.120 0.120 v 1 vin = 40v, il = -5ma -0.120 0.120 v 1 vin = 40v, il = -0.1a -0.120 0.120 v 1 iscd stand by current drain vin = 30v, il = -5ma -20 20 % 1 note 1: tested at ta = +125 c, correlated to ta = +150 c. note 2: tested at extremes as a set up for delta vout/delta t tests. note 3: calculated parameter. for calculations use vout at vin = 30v, il = -5ma 5
microcircuit data sheet mjlm140-24-k rev 0b0 graphics and diagrams graphics# description 9482hra1 metal can(ka),to-3,2ld,low profile (b/i ckt) k02crc metal can(ka),to-3,2ld,low profile (p/p dwg) p000031a metal can(ka),to-3,2ld,low profile(pin out) see attached graphics following this page. 6
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