DC/DC Converters 28 Volt Input hr120 Series 12 Watt NOT RECOMMENDED FOR NEW DESIGNS Features • –40°C to +85°C operation • 16 to 40 VDC input (19 to 40 VDC input for 15 volt output models) models VDC Output • 50 V for up to 50 ms transient protection single • Fully isolated 5 12 15 • Fixed high frequency switching • Inhibit function • Indefinite short circuit protection • Up to 83% efficiency Size (max.): Weight: Screening: The HR120 converters are switching regulators which use a quasisquare 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, Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.interpoint.com ±12 ±15 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm) See case E1 for dimensions. 21 grams typical. Standard only. See “HR Industrial Non-QML Products – Environmental Screening” table for screening description. 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 –40°C to +85°C 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. Design Methodology dual 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. Wide Voltage Range 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 –40°C up to +85°C. Depending on operating levels, air flow, and ambient temperature, heat sinking may be required. Inhibit Feature 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. Page 1 of 6 HR120 Rev C - 20090904 DC/DC Converters absolute maximum ratings hr120 series 12 Watt typical characteristics 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°C Storage Temperature Range (Case) •–55°C to +125°C Output Voltage Temperature Coefficient •150 ppm/°C, 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 recommended operating conditions 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) •–40°C to +85°C full power Derating Output Power/Current •Linearly from 100% at 85°C to 0% at 115°C inhibit 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°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. dual output models PARAMETER hr122-2812 CONDITIONS + vout output voltage output current1, 2 output power2 - vout + vout - vout hr122-2815 MIN TYP MAX MIN TYP MAX 11.88 12.0 12.12 14.85 15.0 15.15 11.82 12.0 12.18 14.77 15.0 15.23 — 0.5 1.0 — 0.4 0.8 — — 10.8 — — 10.8 — — 10.8 — — 10.8 total — — 12 — — 12 10 kHz to 2 MHz — 30 60 — 30 60 line regulation min to max vin + vout — 5 — 5 50 - vout — 30 150 — 30 150 load regulation no load to full + vout — 5 — 5 50 - vout 20% to 80% load3 — 30 150 — 30 150 50% load4 — 5 — continuous output ripple cross regulation input voltage input current input ripple current start-up 50 10 — 4 8 4 5 — 3 5 16 28 32 16 28 32 transient 50 ms — — 50 — — 50 no load — 25 35 — 25 35 full load — — 545 — 3 — 1.9 — W mV p-p mV mV % VDC mA — — 175 240 — 175 240 — 80 83 — % W 78 81 — — short circuit — — delay — 150 3 2.8 — — 2 5 — — 5 250 — 150 250 Notes 1.Indefinite short circuit protection not guaranteed above 85°C case temperature. www.interpoint.com A 10 kHz to 2 MHz power dissipation overload 1.9 540 VDC inhibited efficiency load fault5 50 UNITS Page 2 of 6 HR120 Rev C - 20090904 ma p-p ms DC/DC Converters hr120 series 12 Watt Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. single output models PARAMETER CONDITIONS hr121-2805 hr121-2812 MIN TYP MAX MIN 4.95 5.0 5.05 11.88 12 — — 2.0 — — — — 10 — — 10 kHz to 2 MHz — 40 60 — line regulation min to max vin — 10 50 load regulation no load to full — 10 50 output voltage output current output power output ripple input voltage input current input ripple current min to max vin start-up MAX 14.85 15 15.15 1.0 — — 0.8 A 12 — — 12 W 30 60 — 25 50 mV p-p — 10 50 — 10 50 mV — 10 50 — 10 50 mV 12.12 16 28 40 16 28 40 16 28 40 — — 50 — — 50 — — 50 no load — 20 30 — 20 full load — — 548 — — 30 — 20 478 — — 3 — 2 2 3 180 — 150 200 — 150 220 — 80 83 — 5 — — 5 — 2 — 135 74 77 — 77 81 — — 5 — — 3.5 — — 2.8 — — 2 300 — 80 200 — 150 250 — — delay — 180 pin out PinSingle 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 VDC 30 inhibited short circuit 3 — VDC mA 535 10 kHz to 2 MHz power dissipation overload UNITS TYP no load to full 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. mA p-p % W ms 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°C case temperature. Squared corner and dot on top of cover indicate pin one. 1 2 3 4 5 model number key BOTTOM VIEW HR120 8 7 Base Model 6 See case E1 for dimensions Figure 1: Pin Out www.interpoint.com MAX MIN transient 50 ms efficiency load fault1 TYP hr121-2815 Page 3 of 6 HR120 Rev C - 20090904 Number of Outputs (1 = single, 2 = dual) Input Voltage Output Voltage HR12 2 - 28 12 DC/DC Converters hr120 series 12 Watt Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified. 90 90 90 16V 16V 28V 60 70 28V 2 4 6 8 10 12 50 14 10 12 HR121-2812 Efficiency Figure 3 19V Efficiency (%) 70 28V 40V 70 28V 60 50 2 4 6 8 10 12 Output Power (Watts) 14 2 4 6 8 10 12 Output Power (Watts) 14 HR122-2815 Efficiency 0 2815 –5 2812 –10 –15 20 40 60 80 Output Load (%) Positive Output 20% to 80% Load Negative Output 80% to 20% Load 100 HR122 Negative Output Voltage Cross Regulation Figure 8 www.interpoint.com 12 14 Cond. A 2812 4 2 2815 0 2 –4 2812 –6 Cond. B –8 –10 0 10 2 30 40 50 Output Load (%) Condition A: 50% Load Pos. Vout, 50% to 20% Neg. Vout Condition B: 50% Load Neg. Vout, 50% to 20% Pos. Vout 18 2815 17 16 15 2812 14 13 11 10 19 2805 17 2815 16 15 14 13 2812 12 12 0 8 8 Input Voltage (Volts) Input Voltage (Volts) 5 6 6 18 10 4 Output Power (Watts) 10 19 15 2 HR122 Negative Output Voltage Cross Regulation Figure 7 Figure 6 Figure 5 20 28V HR121-2815 Efficiency Figure 4 80 40V 70 50 14 90 HR122-2812 Efficiency Negative Output Voltage Change (%) 8 HR121-2805 Efficiency Figure 2 60 –20 6 4 Output Power (Watts) 80 Efficiency (%) 2 Output Power (Watts) 16V 40V 60 60 90 50 40V Negative Output Voltage Change (%) 50 Efficiency (%) 40V 70 19V 80 80 Efficiency (%) Efficiency (%) 80 2 4 6 8 10 12 14 Output Power (Watts) 50 mV Drop HR121 Low Line Dropout Figure 9 Page 4 of 6 HR120 Rev C - 20090904 11 2 4 6 8 10 12 14 Output Power (Watts) 50 mV Drop HR122 Low Line Dropout Figure 10 DC/DC Converters hr120 series 12 Watt BOTTOM VIEW CASE E1 Projection Weld Squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 0.960 (24.38) 1 0.030 dia. (0.76) 2 3 8 0.160 (4.06) 4 7 5 6 1.460 max. (37.08) 1.105 (28.07) 0.905 (22.99) 0.705 (17.91) 0.505 (12.83) 0.205 (5.21) 0.000 0.25 (6.35) 0.000 0.330 max. (8.38) 0.000 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. 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. Figure 11: Case E1 www.interpoint.com Page 5 of 6 HR120 Rev C - 20090904 DC/DC Converters hr120 series 12 Watt HR INDUSTRIAL (STANDARD, NON-QML) PRODUCTS ENVIRONMENTAL SCREENING hr industrial standard non-Qml1 test perFormed Pre-cap Inspection Method 2017, 2032 yes Final Electrical Test MIL-PRF-38534, Group A Subgroups 1 and 4: +25°C 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 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. 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