scd8697 rev e ? manufactured using space qualified rh3083 die ? radiation performance ? total dose: 100 krads(si), dose rate = 50 - 300 rads(si)/s ? eldrs: 50 krads(si), dose rate < 0.01 rads(si)/s ? two-independent voltage regulators ? current limit with foldback ? over-temperature protection ? input voltage range: 1.0v to 23v ? output voltage adjustable: 0v to 22v ? outputs may be paralleled for higher current ? post radiated dropout voltage, v control > 2.0v: ? 0.75v @ 2.5amps ? 0.28v @ 1.0amps ? output current: 2.5amps ? packaging ? hermetic meter power package ? thru-hole or surface mount ? 8 leads, .755"l x .415"w x .200"ht ? weight - 6 gm max ? designed for aerospace and high reliability space applications ? aeroflex plainview?s radiation hardness assurance plan is dla certified to mil-prf-38534, appendix g. description the aeroflex plainview vrg8697/8698 consists of two positive adjustable (rh3083) uldo voltage regulators each capable of supplying 2.5amps o ver the output voltage ra nge as defined under recommended operating conditions. the vrg8697/8698 offers exce llent line and load regulation specifications and ripple rejection. there is full electrical isolation between the regulators and each regulator to the package. the vrg8697/8698 has been specifically designed to meet exposure to radiation environments. the vrg8697 is configured for a thru-hole 8 lead metal power package and the vrg8698 is configured for a surface mount 8 lead metal power package. it is guaranteed operat ional with a case operating temperature from -55c to +125c. available screened in acco rdance with mil-prf-38534, the vrg8697/8698 is ideal for demanding military and space applications. dropout (v in - v out ) decreases at lower load currents for both regulators. radiation tolerant figure 1 ? block diagram / schematic december 10, 2015 www.aeroflex.com/voltreg standard products features vrg8697/vrg8698 dual voltage regulator, 2.5 amp, positive ultra low dropout (uldo), adjustable 6 s et _2 o ut _2 3 8 s et _1 v control _1 o ut _1 1 2 4 rh3083 positive regulator rh3083 positive regulator 7 5 v in _2 v in _1 v control _2 datasheet
2 scd8697 rev e 12/10/15 aeroflex plainview absolute maximum ratings parameter (voltage is relative to v out )ratingunits input voltage (no overload or short circuit) +23 v dc v control +28 v dc output short circuit duration indefinite - lead temperature (soldering 10 sec) 300 c input output differential 18 v dc esd 1 / 2,000 - 3,999 v operating junction temper ature range -55 to +150 c storage temperature range -65 to +150 c thermal resistance (junction to case) ? jc 4c/w 1 / meets esd testing per mil- std-883, method 3015, class 2. notice: stresses above those listed under "a bsolute maximum ratings" may cause perm anent damage to the device. these are stress rating only; functional operation beyond the "operati on conditions" is not recommended and extended exposure beyond the "operation conditions" may effect device reliability. recommended operating conditions parameter range units output voltage range 0 to 22 v dc input output differential 0.5 to 18 v dc case operating temperature range -55 to +125 c input voltage (voltages are relative to v out ) 1 to 23 v v control (voltages are relative to v out ) 1.6 to 28 v electrical perform ance characteristics unless otherwise specified: -55c < tc < +125c. parameter symbol conditions (p < p max ) m i n m a x u n i t s set pin current i ref 1 1.0ma < i load < 2.5a, v in > 2v, v control > 3v 49.0 51.5 a set pin current 1 / i ref 2 v in = 2v, v control = 3v, i load = 1ma, t c = 25c 49 51 a output offset voltage (v out - v set ) 1 / v os v in = 2v, v control = 3v, i load = 1ma, -6.0 6.0 mv line regulation 1 / ? v os 1v < v in < 23v, 2v < v control < 25v, i load = 1ma, t c = +25 ? c -0.07 0.07 mv/v load regulation 1 / ? v os (v in - v out ) = 3v, i load = 5ma to 2.5a, t c = 25c -10.0 10.0 mv v control dropout voltage 2 / vc drop i load = 2.5a - 1.65 v i load = 1.0a 1 / - 1.60 v in dropout voltage 2 /v indrop i load = 2.5a - 0.75 v i load = 1.0a 1 / - 0.28 current limit 3 /i max v in = v control = +5v, v set = 0v, v out = +0.4v 2.6 - a minimum load current 1 / 4 /i min v control = 25v, v in = 23v - 1.0 ma ripple rejection - i load = 0.2a, (v in - v out ) = 3v, f = 120hz, c out = 10f, c set = 0.1f 60 - db notes: 1 / specification derated to reflect total dose exposure to 100 krad (si) @+25c. 2 / dropout results from either minimum control voltage, v control , or minimum input voltage, v in , both specified with respect to v out . these specifications repres ent the minimum input-to-output differential voltage required to maintain regulation. 3 / pulsed @ <10% duty cycle @ +25c for characterization only. 4 / not tested. shall be guaranteed to the specified limits.
3 scd8697 rev e 12/10/15 aeroflex plainview the maximum power dissipation is limited by the ther mal shutdown function of each regulator chip in the vrg8697/8698. the graph above represents the achievable power before the chip shuts down. the first line in the graph represents the maximum power dissipation of the vrg8697/8698 with one regulator on (the other off) and the other line represents both regulators on, dissipating equal power. if both regulators are on and one regulator is dissipating more power than the ot her, the maximum power dissipating of the vrg8697/8 698 will fall between the two lines. this graph is based on the maximum juncti on temperature of 150c and a thermal resistance ( ? jc ) of 4c/w. figure 2 ? maximum powe r vs case temperature
4 scd8697 rev e 12/10/15 aeroflex plainview figure 4 ? rh3083 typical dropout figure 3 ? rh3083 typical current limit voltage curve (v control 1.65v) figure 5 ? basic vrg8697 adju stable regulator application rset vout 50ua -------------- =
5 scd8697 rev e 12/10/15 aeroflex plainview figure 6 ? vrg8697 p ackage outline ? thru -hole power package ? .145 thru .415 .2075 r.065 typ. 4 plcs .003 .220 max. .005 .040 .002 .030 dia. .150 ref. 2 max. .020 .720 measured lead tip ident ?a? ?c? ? .010 b c a m ? .010 c b a table i ? pin numbers vs function pin function 1v control _1 2v in _1 3v control _2 4v in _2 5o ut _2 6s et _2 7o ut _1 8s et _1 2x .028 m ? .010 c b a .230 min notes: 1. dimension toler ance: .005 inches 2. package contains beo substrate 3. case electrically isolated .122 max. .108 .300 .100 .755 .515 esd/pin 1 ?b? 4 5 6 7 3 2 8 1 .632 .090 8x
6 scd8697 rev e 12/10/15 aeroflex plainview .108 .300 .100 ? .145 thru .415 .2075 r.065 typ. 4 plcs .755 .515 .003 .220 max. .005 .040 .002 .030 dia. .122 .150 ref. .020 .886 ident esd/pin 1 ?b? ?a? ?c? ? .010 b c a m ? .010 c b a notes: 1. dimension tolerance: .005 inches 2. package contains beo substrate 4 5 6 7 3 2 table ii ? pin numbers vs function pin function 1v control _1 2v in _1 3v control _2 4v in _2 5o ut _2 6s et _2 7o ut _1 8s et _1 2x .028 m ? .010 c b a .020.005 .060 .005 3. case electrically isolated max. 8 1 .632 .090 8x figure 7 ? vrg8698 packa ge outline ? surface mount power package
www.aeroflex.com/hirel info-ams@aeroflex.com aeroflex plainview, inc. reserves the ri ght to make changes to any products and services described herein at any time without notice. consult aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. aeroflex does not assume any responsibility or liability arising out of the application or use of any product or se rvice described herein, except as expressly agreed to in writing by aeroflex; nor does the purchase, lease, or use of a product or service from aeroflex convey a license under any patent ri ghts, copyrights, trademark rights, or any other of the intellectual rights of aeroflex or of third parties. export control: this product is controlled for export under the export ad ministration regulations (ear), 15 cfr parts 730-774. a license from the department of commerce may be required prio r to the export of this product from the united states. our passion for performance is defined by three attributes. solution-minded performance-driven customer-focused datasheet definitions: advanced product in development preliminary shipping non-flight prototypes datasheet shipping qml and reduced hire l lt, ltc , , linear technology and the linear logo are registered trademarks and rh3083 is copyright linear technology corporation. 7 scd8697 rev e 12/10/15 for detailed performance characteristic curves, applicatio ns information and typical applications see the latest datasheet for their lt 3083 and rh3083, which is ava ilable on-line at www.linear.com. ordering information model dla smd # screening package vrg8697-7 - commercial flow, +25c testing only 8-lead thru-hole power pkg vrg8697-901-1s 5962r1420201kuc in accordance with dla certified rha program plan to rha level "r", 100krads(si) vrg8697-901-2s 5962r1420201kua vrg8698-7 commercial flow, +25c testing only 8-lead surface-mount power pkg vrg8698-901-1s 5962r1420201kzc in accordance with dla certified rha program plan to rha level "r", 100krads(si) VRG8698-901-2S 5962r1420201kza
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