models vdc o utput b4-47 single 5 12 15 dual ? 2 ? 5 description the hr120 series of dc/dc converters offers up to 12 watts of power from single or dual outputs in a single package over a ?0? to +85? temperature range. thick film hybrid manufacturing tech- nology produces high levels of miniaturization, giving the hr120 series converters a low profile (0.330 inch), small board area (1.65 square inches), and high power density (22 watt/in 3 ). the parts are packaged in sealed steel enclosures, making them ideal for use in high reliability applications. each unit is guaranteed to pass a hermeticity test with a maximum leak rate of 0.001 atm- cc/sec. d esign m ethodology the hr120 converters are switching regulators which use a quasi- square wave, single ended forward converter design with a nominal switching frequency of 600 khz. isolation between input and output circuits is provided with a transformer in the forward power loop and a temperature insensitive optical link in the feedback control loop. output regulation is accomplished with constant frequency pulse width modulation. both line and load regulation are typically within 10 mv. on dual output models, the positive output is independently regu- lated and the negative output is cross-regulated. figures 7 and 8 illustrate what effects load changes have on the negative output. indefinite short circuit protection and overload protection are provided by sensing output load current and restricting the output current to approximately 125% of full load output current. since the output current is sensed in the secondary stage, the result is a predictable, constant output current control with no foldback char- acteristics. hr120 converters are provided with internal filtering elements on both the input and output to help reduce the need for external components. w ide v oltage r ange the 5 and 12 volt output models provide full power operation over the input voltage range of 16 to 40 volts (19 to 40 volts for 15 volt output models). operation below 16 volts (or below 19 volts for the 15 volt output models), including operation in mil-std-704e emer- gency power conditions, is possible with derated output power. please refer to the low voltage drop-out graphs, figures 9 and 10. the hr120 series provides full power operation at case tempera- tures from ?0? up to +85?. depending on operating levels, air flow, and ambient temperature, heat sinking may be required. i nhibit f eature an inhibit terminal is provided that can be used to disable internal switching, resulting in a very low quiescent input current. an open collector ttl compatible low ( 0.8 v) is required to control the inhibit function. this level may be supplied by an open collector gate since the inhibit pin is provided with an internal pull-up resistor. dc/dc c onverters 28 v olt i nput hr120 series 12 watt f eatures ?0? to +85? operation 16 to 40 vdc input (19 to 40 vdc input for 15 volt output models) fully isolated optocoupler feedback 600 khz typical operating frequency topology ?single ended forward 50 v for up to 50 ms transient protection inhibit function indefinite short circuit protection up to 83% efficiency size (max.): 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm) see section b8, case e1 for dimensions. weight: 21 grams typical. screening: standard only. see section c2 for screening description.
recommended operating conditions typical characteristics inhibit absolute maximum ratings input voltage 16 to 40 vdc 19 to 40 vdc 15 volt outputs output power 12 watts (10 watts HR121-2805) lead soldering temperature (10 sec per pin) 300? storage temperature range (case) ?5? to +125? b4-48 hr120 series 12 watt dc/dc c onverters output voltage temperature coefficient 150 ppm/?, typical input to output capacitance 50 pf, typical current limit 125% of full load, typical isolation 100 megohm minimum at 500 v conversion frequency 600 khz typical inhibit pin voltage (unit enabled) 8 to 11 v input voltage range 16 to 40 vdc continuous 19 to 40 vdc continuous 15 volt outputs 50 v for 50 msec transient case operating temperature (tc) ?0? to +85? full power inhibit ttl open collector logic low (output disabled) logic low 0.8 v max inhibit pin current 4 ma max referenced to input common logic high (output enabled) open collector electrical characteristics: 25? tc, 28 vdc vin, 100% load, unless otherwise specified. single output models HR121-2805 hr121-2812 hr121-2815 parameter conditions min typ max min typ max min typ max units output voltage 4.95 5.0 5.05 11.88 12 12.12 14.85 15 15.15 vdc output current 2.0 1.0 0.8 a output power min. to max. v in 10 12 12 w output ripple 10 khz to 2 mhz 40 60 30 60 25 50 mv p-p line regulation min. to max. v in 10 50 10 50 10 50 mv load regulation no load to full 10 50 10 50 10 50 mv input voltage no load to full 16 28 40 16 28 40 19 28 40 vdc transient 50 ms 50 50 50 input current no load 20 30 20 30 20 30 full load 478 548 535 ma inhibited 2 3 2 3 2 3 input ripple current 10 khz to 2 mhz 135 180 150 200 150 220 ma p-p efficiency 74 77 77 81 80 83 % load fault 1 power dissipation overload 5 5 5 w short circuit 3.5 2.8 2 start-up delay 180 300 80 200 150 250 ms notes 1. indefinite short circuit protection not guaranteed above 85? case temperature.
hr12 2 - 28 12 base model input voltage output voltage number of outputs (1 = single, 2 = dual) b4-49 hr120 series 12 watt dc/dc c onverters dual output models hr122-2812 hr122-2815 parameter condition min typ max min typ max units output voltage +v out 11.88 12.0 12.12 14.85 15.0 15.15 vdc ?v out 11.82 12.0 12.18 14.77 15.0 15.23 output current 1, 2 0.5 1.0 0.4 0.8 a output power 2 +v out 10.8 10.8 ?v out 10.8 10.8 w total 12 12 output ripple voltage 10 khz to 2 mhz 30 60 30 60 mv p-p line regulation +v out 5 50 5 50 mv min. to max. v in ?v out 30 150 30 150 load regulation +v out 5 50 10 50 mv no load to full ?v out 30 150 30 150 cross regulation 20% to 80% load 3 5 10 4 8 % 50% load 4 ?5 35 input voltage continuous 16 28 40 19 28 40 vdc transient 50 ms 50 50 input current no load 25 35 25 35 full load 545 540 ma inhibited 1.9 3 1.9 3 input ripple current 10 khz to 2 mhz 175 240 175 240 ma p-p efficiency 78 81 80 83 % load fault 5 power dissipation overload 2.8 2 w short circuit 5 5 start-up delay 150 250 150 250 ms notes 1. applies to both outputs. 2. maximum combined output power is 12 watts. a maximum of 90% is available from either output. 3. 20% to 80% load on the positive output and 80% to 20% on the negative output. see figure 8. 4. 50% load on the positive output and 50% to 20% load on the negative output. 50% load on the negative output and 50% to 20% load on the positive output. see figure 7. 5. indefinite short circuit protection not guaranteed above 85? case temperature. electrical characteristics: 25? tc, 28 vdc vin, 100% load, unless otherwise specified. model number key pin out pin single output dual output 1 inhibit inhibit 2 no connection positive output 3 output common output common 4 positive output negative output 5 no connection no connection 6 case ground case ground 7 input common input common 8 positive input positive input bottom view hr120 squared corner and dot on top of cover indicate pin one. 1 2345 876 f igure 1: p in o ut see section b8, case e1, for dimensions
b4-50 hr120 series 12 watt dc/dc c onverters typical performance curves: 25? tc , 28 vdc vin, 100% load, unless otherwise specified. f igure 5 f igure 7 output power (watts) hr122-2812 efficiency efficiency (%) 50 90 80 70 60 2 4 6 8 10 12 16v 40v 28v 14 output power (watts) HR121-2805 efficiency efficiency (%) 50 90 80 70 60 24681012 28v 14 40v 16v f igure 2 output power (watts) hr121-2812 efficiency efficiency (%) 50 90 80 70 60 2 4 68 10 12 16v 40v 28v 14 f igure 3 output power (watts) hr122-2815 efficiency efficiency (%) 50 90 80 70 60 2 4 6 8 10 12 19v 40v 28v 14 f igure 6 f igure 4 output power (watts) hr121-2815 efficiency efficiency (%) 50 90 80 70 60 2 4 6 8 10 12 19v 40v 28v 14 output load (%) positive output 20% to 80% load negative output 80% to 20% load hr122 negative output voltage cross regulation negative output voltage change (%) ?0 0 20406080 100 ?0 ? ?5 0 5 10 15 20 2812 2815 f igure 8 output power (watts) 50 mv drop hr121 low line dropout input voltage (volts) 11 24681012 14 13 14 12 15 16 17 18 19 2812 2815 2805 f igure 9f igure 10 output power (watts) 50 mv drop hr122 low line dropout input voltage (volts) 11 24681012 14 13 14 12 15 16 17 18 19 2812 2815 output load (%) condition a: 50% load pos. vout, 50% to 20% neg. vout condition b: 50% load neg. vout, 50% to 20% pos. vout hr122 negative output voltage cross regulation negative output voltage change (%) ?0 01023040 50 ? ? ? 0 2 4 6 10 2815 2812 cond. b cond. a 2812 8 2 21821-009-dts rev a dq# 2011 all technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. interpoint reserves the right to make changes in products or specifications without notice. hr120 series is a trademark of interpoint. copyright 1994 - 1999 interpoint. all rights reserved.
b8-10 case e c ases case e bottom view see figures 16 ?18 for pin configurations. squared corner and dot on top of case indicate pin one. 1.460 max (37.08) 1.130 max (28.70) materials header cold rolled steel/nickel/gold cover kovar/nickel (smhf series cold rolled steel/nickel/gold) pins #52 alloy/gold compression glass seal case dimensions in inches (mm) tolerance 0.005 (0.13) for three decimal places 0.01 (0.3) for two decimal places unless otherwise specified caution heat from reflow or wave soldering may damage the device. solder pins individually with heat application not exceeding 300 c for 10 seconds per pin. 0.000 0.205 (5.21) 0.505 (12.83) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) 0.330 max (8.38) 0.000 0.25 (6.35) 0.000 0.160 (4.06) 0.960 (24.38) 1 2345 0.030 dia. (0.76) 876 mhf+ series single and dual: screening ?standard, es, or 883 mhf series and lim5050 module: screening ?standard or es smhf series single and dual and slim5050 module: screening ?space standard, h, or k hr120 series: no screening options bottom view case e1 0.330 max (8.38) 0.000 0.25 (6.35) projection weld seam seal squared corner and dot on top of case indicate pin one. f igure 16: c ase e1 f igure 15: c ase e m aximum d imensions note: although every effort has been made to render the case drawings at actual size, variations in the printing process may ca use some distortion. please refer to the numerical dimensions for accuracy.
c2-13 qa screening hr products hr p roducts test (hr products) standard pre-cap inspection method 2017 yes final electrical test mil-prf-38534, group a subgroups 1 and 4: +25? case yes hermeticity testing gross leak, dip (1 x 10 -3 ) yes final visual inspection method 2009 yes test methods are referenced to mil-std-883 as determined by mil- prf-38534. hr700 series hr300 series hr150 series hr120 series hr40 series applies to the following products:
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