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| FEATURES * -40C to +85C 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 DC/DC CONVERTERS 28 VOLT INPUT HR120 SERIES 12 WATT MODELS VDC OUTPUT SINGLE 5 12 15 DUAL 12 15 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. DESCRIPTION The HR120 SeriesTM of DC/DC converters offers up to 12 watts of power from single or dual outputs in a single package over a -40C 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 atmcc/sec. 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. 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 -40C up to +85C. Depending on operating levels, air flow, and ambient temperature, heat sinking may be required. DESIGN METHODOLOGY 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. 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. B4-47 HR120 SERIES 12 WATT 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) * 300C Storage Temperature Range (Case) * -55C to +125C DC/DC CONVERTERS 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 TYPICAL CHARACTERISTICS 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) * -40C to +85C full power Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified. SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE LINE REGULATION LOAD REGULATION INPUT VOLTAGE MIN. TO MAX. VIN 10 kHz to 2 MHz MIN. TO MAX. VIN NO LOAD TO FULL NO LOAD TO FULL TRANSIENT 50 ms INPUT CURRENT NO LOAD FULL LOAD INHIBITED INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT1 POWER DISSIPATION OVERLOAD SHORT CIRCUIT START-UP DELAY -- -- -- -- - 180 5 3.5 300 -- -- -- -- -- 80 5 2.8 200 -- -- -- -- -- 150 5 2 250 ms W 10 kHz TO 2 MHz -- 74 135 77 180 -- -- 77 150 81 200 -- -- 80 150 83 220 -- mA p-p % CONDITIONS HR121-2805 MIN 4.95 -- -- -- -- -- 16 -- -- -- -- TYP 5.0 -- -- 40 10 10 28 -- 20 -- 2 MAX 5.05 2.0 10 60 50 50 40 50 30 478 3 HR121-2812 MIN 11.88 -- -- -- -- -- 16 -- -- -- -- TYP 12 -- -- 30 10 10 28 -- 20 -- 2 MAX 12.12 1.0 12 60 50 50 40 50 30 548 3 MIN 14.85 -- -- -- -- -- 19 -- -- -- -- HR121-2815 TYP 15 -- -- 25 10 10 28 -- 20 -- 2 MAX 15.15 0.8 12 50 50 50 40 50 30 535 3 mA UNITS VDC A W mV p-p mV mV VDC Notes 1. Indefinite short circuit protection not guaranteed above 85C case temperature. B4-48 DC/DC CONVERTERS DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE CONDITION +VOUT - VOUT OUTPUT CURRENT1, 2 OUTPUT POWER2 +VOUT - VOUT TOTAL OUTPUT RIPPLE VOLTAGE LINE REGULATION MIN. TO MAX. VIN LOAD REGULATION NO LOAD TO FULL CROSS REGULATION 10 kHz TO 2 MHz +VOUT - VOUT +VOUT - VOUT 20% TO 80% LOAD3 50% LOAD4 INPUT VOLTAGE CONTINUOUS TRANSIENT 50 ms INPUT CURRENT NO LOAD FULL LOAD INHIBITED 10 kHz TO 2 MHz MIN 11.88 11.82 -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- -- 78 POWER DISSIPATION OVERLOAD SHORT CIRCUIT START-UP DELAY -- -- -- -- -- 150 2.8 5 250 -- -- -- -- -- 150 2 5 250 ms W HR122-2812 TYP MAX 12.0 12.0 0.5 -- -- -- 30 5 30 5 30 5 4 28 -- 25 -- 1.9 175 81 12.12 12.18 1.0 10.8 10.8 12 60 50 150 50 150 10 5 40 50 35 545 3 240 -- MIN HR122-2815 TYP MAX 15.0 15.0 0.4 -- -- -- 30 5 30 10 30 4 3 28 -- 25 -- 1.9 175 83 15.15 15.23 0.8 10.8 10.8 12 60 50 150 50 150 8 5 40 50 35 540 3 240 -- mA VDC % mV W A UNITS VDC HR120 SERIES 12 WATT Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified. 14.85 14.77 -- -- -- -- -- -- -- -- -- -- -- 19 -- -- -- -- -- 80 mV p-p mV INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT5 mA p-p % 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 85C case temperature. PIN OUT Pin 1 2 3 4 5 6 7 8 Single Output Inhibit No connection Output Common Positive Output No connection Case Ground Input Common Positive Input Dual Output Inhibit Positive Output Output Common Negative Output No connection Case Ground Input Common Positive Input Squared corner and dot on top of cover indicate pin one. MODEL NUMBER KEY HR12 Base Model 2 - 28 12 1 2 3 4 5 Number of Outputs (1 = single, 2 = dual) Input Voltage Output Voltage BOTTOM VIEW HR120 8 7 6 See Section B8, case E1, for dimensions FIGURE 1: PIN OUT B4-49 DC/DC CONVERTERS 90 90 16V HR120 SERIES 12 WATT 90 19V Typical Performance Curves: 25C Tc , 28 VDC Vin, 100% load, unless otherwise specified. 80 16V 80 80 Efficiency (%) Efficiency (%) 40V 70 28V 60 70 40V 28V Efficiency (%) 40V 70 28V 60 60 50 2 4 6 8 10 12 14 50 2 4 6 8 10 12 14 50 2 4 6 8 10 12 14 Output Power (Watts) Output Power (Watts) Output Power (Watts) HR121-2805 Efficiency HR121-2812 Efficiency HR121-2815 Efficiency FIGURE 2 90 16V FIGURE 3 Negative Output Voltage Change (%) 90 19V FIGURE 4 10 8 6 4 2 0 2 -4 -6 -8 -10 0 10 2 30 40 50 2812 2815 2812 80 80 Cond. A Efficiency (%) Efficiency (%) 40V 40V 70 28V 70 28V 60 60 Cond. B 50 50 2 4 6 8 10 12 14 2 4 6 8 10 12 14 Output Power (Watts) Output Power (Watts) HR122-2812 Efficiency HR122-2815 Efficiency 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 FIGURE 5 20 19 18 FIGURE 6 19 18 FIGURE 7 Negative Output Voltage Change (%) 15 10 Input Voltage (Volts) Input Voltage (Volts) 17 16 15 14 13 12 2815 17 2815 16 15 14 13 12 11 2812 5 0 -5 -10 -15 -20 0 20 40 60 80 100 2812 2815 2812 2805 11 Output Load (%) Positive Output 20% to 80% Load Negative Output 80% to 20% Load 2 4 6 8 10 12 14 2 4 6 8 10 12 14 Output Power (Watts) 50 mV Drop Output Power (Watts) 50 mV Drop HR122 Negative Output Voltage Cross Regulation HR121 Low Line Dropout HR122 Low Line Dropout FIGURE 8 FIGURE 9 FIGURE 10 B4-50 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 (c) 1994 - 1999 Interpoint. All rights reserved. CASE E CASES Squared corner and dot on top of case indicate pin one. 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 300C for 10 seconds per pin. CASE E BOTTOM VIEW See Figures 16 - 18 for pin configurations. 1.130 max (28.70) 1.460 max (37.08) FIGURE 15: CASE E MAXIMUM DIMENSIONS BOTTOM VIEW CASE E1 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 Seam Seal Projection Weld Squared corner and dot on top of case indicate pin one. 0.960 (24.38) 0.030 dia. (0.76) 1 2 3 4 5 0.160 (4.06) 0.000 0.330 max (8.38) 0.000 0.25 (6.35) 0.25 (6.35) 0.330 max (8.38) 0.000 0.000 8 7 6 0.205 (5.21) FIGURE 16: CASE E1 Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy. B8-10 0.505 (12.83) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) QA SCREENING HR PRODUCTS HR PRODUCTS TEST (HR products) PRE-CAP INSPECTION Method 2017 FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 and 4: +25C case HERMETICITY TESTING Gross Leak, Dip (1 x 10-3) FINAL VISUAL INSPECTION Method 2009 STANDARD yes yes yes yes Test methods are referenced to MIL-STD-883 as determined by MILPRF-38534. Applies to the following products: HR700 Series HR300 Series HR150 Series HR120 Series HR40 Series C2-13 |
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