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 C40c to +85c temperature range. thick film hybrid manufacturing technology 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/in3). 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 e s i g n m e t h o d o l o g y 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 regulated 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 characteristics. HR120 converters are provided with internal filtering elements on both the input and output to help reduce the need for external components. w i d e v o l t a g e r a n g e 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 emergency 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 temperatures from C40c up to +85c. depending on operating levels, air flow, and ambient temperature, heat sinking may be required. i n h i b i t f e a t u r e 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. models vdc o u t p u t s i n g l e 5 12 15 d u a l 12 15 features ? C40c to +85c operation ? 16 to 40 vdc input (19 to 40 vdc input for 15 volt output models) ? 50 v for up to 50 ms transient protection ? fully isolated ? fixed high frequency switching ? 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 case e1 for dimensions. weight: 21 grams typical. screening: standard only. see hr industrial non-qml products C environmental screening table for screening description. HR120 series 12 w att dc/dc c o n v e r t e r s 28 v o l t i n p u t not recommende d for ne w designs crane aerospace & electronics electronics group (interpoint brand) po box 97005 ? redmond wa 98073-9705 425.882.3100 ? power@crane-eg.com www.interpoint.com page 1 of 6 HR120 rev c - 20090904
recommended operating conditions inhibit absolute maximum ratings i nput voltage ? 16 to 40 vdc ? 19 to 40 vdc 15 volt outputs output power ? 12 watts (10 watts hr121-2805) lead s oldering t emperature (10 sec per pin) ? 300c storage temperature r ange (case) ? C55c to +125c typical characteristics o utput voltage temperature coefficient ? 150 ppm/c, typical i nput to output capacitance, 50 pf, typical c urrent limit, 125% of full load, typical isolation, 100 megohm minimum at 500 v c onversion frequency, 600 khz typical inhibit p in voltage (unit enabled), 8 to 11 v i nput voltage range ? 16 to 40 vdc continuous ? 19 to 40 vdc continuous 15 volt outputs ? 50 v for 50 msec transient case operating t emperature (tc) ? C40c to +85c full power derating o utput power/current ? linearly from 100% at 85c to 0% at 115c 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: 25c tc, 28 vdc vin, 100% load, unless otherwise specified. notes 1. indefinite short circuit protection not guaranteed above 85c case temperature. dual output models hr122-2812 hr122-2815 units parameter conditions min typ max m in typ m ax o u t p u t v o l t a g e + v o u t 11.88 12.0 12.12 11.82 12.0 12.18 14.85 15.0 15.15 14.77 15.0 15.23 vdc - v o u t o u t p u t c u r r e n t 1, 2 0.5 1.0 0.4 0.8 a o u t p u t p o w e r 2 + v o u t 10.8 10.8 12 10.8 10.8 12 w - v o u t t o t a l o u t p u t r i p p l e 10 khz t o 2 mhz 30 60 30 60 mv p-p l i n e r e g u l a t i o n m i n t o m a x v in + v o u t 5 50 30 150 5 50 30 150 mv - v o u t l o a d r e g u l a t i o n n o l o a d t o f u l l + v o u t 5 50 30 150 5 50 30 150 mv - v o u t c r o s s r e g u l a t i o n 20% t o 80% l o a d 3 5 10 4 5 4 8 3 5 % 50% l o a d 4 i n p u t v o l t a g e c o n t i n u o u s 16 28 32 50 16 28 32 50 vdc t r a n s i e n t 50 ms i n p u t c u r r e n t n o l o a d 25 35 545 1.9 3 25 35 540 1.9 3 ma f u l l l o a d inhibite d i n p u t r i p p l e c u r r e n t 10 khz t o 2 mhz 175 240 175 240 ma p-p e f f i c i e n c y 78 81 80 83 % l o a d f a u l t 5 p o w e r d i s s i p a t i o n o v e r l o a d 2.8 5 2 5 w s h o r t c i r c u i t s t a r t - u p d e l a y 150 250 150 250 ms HR120 series 12 w att dc/dc c o n v e r t e r s www.interpoint.com page 2 of 6 HR120 rev c - 20090904
model number key hr12 2 - 28 12 base model input voltage output voltage number of outputs (1 = single, 2 = dual) 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 nega - tive 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 85c case temperature. electrical characteristics: 25c tc, 28 vdc vin, 100% load, unless otherwise specified. pin out bottom view HR120 squared corner and dot on top of cover indicate pin one. 1 2345 87 6 f i g u r e 1: p in o u t see case e1 for dimensions 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 single output models hr121-2805 hr121-2812 hr121-2815 units parameter conditions min typ max m in typ m ax m in typ m ax o u t p u t v o l t a g e 4.95 5.0 5.05 11.88 12 12.12 14.85 15 15.15 vdc o u t p u t c u r r e n t 2.0 1.0 0.8 a o u t p u t p o w e r m i n t o m a x v in 10 12 12 w o u t p u t r i p p l e 10 khz t o 2 mhz 40 60 30 60 25 50 mv p-p l i n e r e g u l a t i o n m i n t o m a x v in 10 50 10 50 10 50 mv l o a d r e g u l a t i o n n o l o a d t o f u l l 10 50 10 50 10 50 mv i n p u t v o l t a g e n o l o a d t o f u l l 16 28 40 50 16 28 40 50 16 28 40 50 vdc t r a n s i e n t 50 ms i n p u t c u r r e n t n o l o a d 20 30 478 2 3 20 30 548 2 3 20 30 535 2 3 ma f u l l l o a d inhibite d i n p u t r i p p l e c u r r e n t 10 khz t o 2 mhz 135 180 150 200 150 220 ma p-p e f f i c i e n c y 74 77 77 81 80 83 % l o a d f a u l t 1 p o w e r d i s s i p a t i o n o v e r l o a d 5 3.5 5 2.8 5 2 w s h o r t c i r c u i t s t a r t - u p d e l a y 180 300 80 200 150 250 ms HR120 series 12 w att dc/dc c o n v e r t e r s www.interpoint.com page 3 of 6 HR120 rev c - 20090904
typical performance curves: 25c tc , 28 vdc vin, 100% load, unless otherwise specified. f i g u r e 5 output power (watts) hr122-2812 efficiency efficiency (%) 50 90 80 70 60 24 68 10 12 16v 40v 28v 14 output power (watts) hr121-2805 efficiency efficiency (%) 50 90 80 70 60 2468 10 12 28v 14 40v 16v f i g u r e 2 output power (watts) hr121-2812 efficiency efficiency (%) 50 90 80 70 60 2 4 68 10 12 16v 40v 28v 14 f i g u r e 3 output power (watts) hr122-2815 efficiency efficiency (%) 50 90 80 70 60 24 68 10 12 19v 40v 28v 14 f i g u r e 6 f i g u r e 4 output power (watts) hr121-2815 efficiency efficiency (%) 50 90 80 70 60 24 68 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 ch ange (%) ?20 02 04 06 08 0 100 ?10 ?5 ?15 0 5 10 15 20 2812 2815 f i g u r e 8 output power (watts) 50 mv drop hr121 low line dropout input voltage (volts) 11 2468 10 12 14 13 14 12 15 16 17 18 19 2812 2815 2805 f i g u r e 9 f i g u r e 10 output power (watts) 50 mv drop hr122 low line dropout input voltage (volts) 11 2468 10 12 14 13 14 12 15 16 17 18 19 2812 2815 f i g u r e 7 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 c hange (%) ?10 01 023 04 0 50 ?6 ?4 ?8 0 2 4 6 10 2815 2812 cond. b cond. a 2812 8 2 HR120 series 12 w att dc/dc c o n v e r t e r s www.interpoint.com page 4 of 6 HR120 rev c - 20090904
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 2 3 4 5 0.030 dia. (0.76) 8 7 6 bottom view case e1 projection w eld squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 1.460 max. (37.08) 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 300c for 10 seconds per pin. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold compression glass seal. seal hole: 0.080 0.002 (2.03 0.05) case e1, rev d, 20090707 please refer to the numerical dimensions for accuracy. all 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. copyright ? 1999-2009 interpoint corp. all rights reserved. f i g u r e 11: c a s e e1 HR120 series 12 w att dc/dc c o n v e r t e r s www.interpoint.com page 5 of 6 HR120 rev c - 20090904
hr i n d u s t r i a l (s t a n d a r d , n o n -qml) p r o d u c t s e n v i r o n m e n t a l s c r e e n i n g test performed hr industrial standard non-qml 1 pre-cap inspection method 2017, 2032 yes final electrical test mil-prf-38534, group a subgroups 1 and 4: +25c case yes hermeticity test 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. notes: 1. standard, non-qml products, do not meet all of the requirements of mil-prf-38534. HR120 series 12 w att dc/dc c o n v e r t e r s HR120 rev c - 20090904. this revision supersedes all previous releases. 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. mor series is a trademark of interpoint. copyright ? 1999 - 2009 interpoint corporation. all rights reserved. www.interpoint.com page 6 of 6
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