Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Features Small size, 0.79 in2 (5.1 cm2) • Operating temperature -55° to +125°C • Qualified to MIL-PRF-38534 Class H and K • Radiation hardness assurance (RHA) to level R 100 krad(Si) • Input voltage range 16 to 40 VDC • Fully isolated, magnetic feedback • Inhibit function • Indefinite short circuit protection • High power density, up to 88% efficiency models • Radiation tolerant to High dose rate (HDR) VDC Output -- 100 krad(Si) total ionizing dose (TID), Singles 30-300 rad(Si)/sec dose rate -- SEE - LET to 86.3 MeV cm2/mg description With a miniature footprint of just 0.79 square inches, the Interpoint™ SLH Series™ of 28 V dc-dc converters delivers 1.5 watts of output power while saving significant board area. The wide input voltage range of 16 to 40 VDC accepts the varying voltages of space, military, or aerospace bus power and tightly regulates output voltages to protect downstream components. Single output models feature outputs of 5, 12, or 15 volts, and dual output models feature outputs of ±5, ±12 and ±15 volts. Screening SLH converters offer the following screening options: Space Prototype (O), Class H, or Class K. Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O) or “R”, per MIL-STD-38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. See “Table 8: Element Evaluation” on page 11 and “Table 9: Environmental Screening and RHA Levels” on page 12 for more information. Converter Design SLH Series dc-dc converters incorporate a flyback topology with a variable switching frequency. Feedback provides output voltage regulation. Output voltage is magnetically fed back to the input side of the PWM to regulate output voltage. Duals 5 ±5 12 ±12 15 ±15 Up to 80% of the load of the dual output models may be on one output providing that the other output carries a minimum of 20% of the total load. The dual models can be used as a single output voltage by connecting the load between positive and negative outputs, leaving the common unconnected resulting in double the output voltage. (for example, SLH2805D can be used as a 10 VDC output.) When used with Interpoint’s STF28-461 filter, the combination will meet the requirements of MIL-STD-461C, CE03. Inhibit Function The SLH Series incorporates an inhibit terminal that can be used to disable internal switching. The converter is inhibited when an active low (≤ 0.5 V) signal is applied to the inhibit pin (pin 7). In the inhibit mode the inhibit pin sources up to 2 mA maximum. The converter resumes normal operation when an open circuit is applied to the inhibit pin. The open circuit voltage of the inhibit is 7 to 8 volts. Do not apply an external pull-up to the converter. Protection Features All models include a soft-start function to prevent large current draw and minimize overshoot. The converters provide short circuit protection (by restricting the current) and output overload protection. Convenient Packaging The SLH Series converters are packaged in hermetically sealed metal cases which provide EMI/RFI shielding. Crane Aerospace & Electronics Page 1 of 12 Power Solutions – Interpoint Products SLH Rev AA - 2013.12.16 10301 Willows Rd. NE, Redmond, WA 98052 The information in this document is a derivative of a document cleared +1 425.882.3100 • [email protected] by the Department of Defense (DoD) Office of Security Review (OSR) for www.craneae.com/interpoint public release. OSR case number 14-S-0390 dated December 12, 2013. Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Positive Input + Shutdown Inhibit PWM Controller + Positive Output + Output Common FB Switching Stage Input Common Case Ground Negative Output Current Limit Dual models only Figure 1: SLH Block Diagram Pin PIN OUT Single Output Dual Output 1 Positive Input Positive Input 2 Input Common Input Common 3 Positive Output Positive Output 4 Output Common Output Common 5 Case Ground Case Ground 6 No Connection Negative Output 7 Inhibit Inhibit Squared corner and dot on top of cover indicate pin one. 1 2 3 4 Bottom View 7 Table 1: Pin Out 6 5 See “Figure 22: Case A2” on page 10 for dimensions. Figure 2: Pin Out Inhibit Pins not in Use Leave unconnected “No Connection” pin Leave unconnected Table 2: Pins Not www.craneae.com/interpoint in Use Page 2 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Model Numbering Key Base Model Input Voltage SLH SMD Numbers 28 12 D / K Standard Microcircuit Drawing (SMD) R Output Voltage Number of Outputs (S = single, D = dual) Screening Radiation Hardness Assurance (RHA) SLH Similar Part 5962R0052601KXC SLH2805s/KR 5962R0052701KXC SLH2812S/KR 5962R0052801KXC SLH2815S/KR 5962R0250401KXC SLH2805d/KR 5962R9955601KXC SLH2812D/KR 5962R9852901KXC SLH2815D/KR The SMD number shown is for Class K screening and Radiation Hardness Assurance (RHA) level R. See the SMD for the numbers for other screening and radiation levels. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from www.landandmaritime.dla.mil/programs/smcr Figure 3: Model Numbering Key Table 3: SMD Number Cross Reference On Model Number Options the lines below, enter one selection from each category to determine the model number. Number of Outputs 1 Screening 2 RHA 3 5, 12, 15 S O O 5, 12, 15 D H R Category Base Model and Input Voltage Output Voltage Options SLH28 Fill in for Model # __ SLH28 K __________ / _______ Notes: 1. Number of Outputs: S is a single output and D is a dual output. 2. Screening: A screening level of O is a Space Prototype and is only used with RHA O. See “Table 8: Element Evaluation” on page 11 and “Table 9: Environmental Screening and RHA Levels” on page 12 for more information. 3. RHA: Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA.” RHA O is only available with Screening level O. See “Table 9: Environmental Screening and RHA Levels” on page 12 for more information. Table 4: SMD Number Cross Reference www.craneae.com/interpoint Page 3 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Table 5: Operating Conditions - All Models, 25°C case, 28 VDC Vin, unless otherwise specified All Models PARAMETER LEAD SOLDERING TEMPERATURE CONDITIONS 1 10 seconds max. STORAGE TEMPERATURE CASE OPERATING FULL POWER 1 MIN TYP UNITS — — 300 °C -65 — +150 °C -55 — +125 -55 — +135 TEMPERATURE ABSOLUTE DERATING OUTPUT POWER/CURRENT 1 LINEARLY ISOLATION, ANY PIN TO CASE Except case pin @ 500 VDC at 25°C 100 — — CONVERSION FREQUENCY 5, 12, 15, ±5 and ±15 220 -55° TO +125°C ±12 INHIBIT ACTIVE LOW (OUTPUT DISABLED) Do not apply a voltage to the inhibit pin 2 °C From 100% at 125°C to 0% at 135°C — Megohms 100 - 170 — pF 280 320 220 — 420 inhibit pin pulled low — — 0.5 V INHIBIT PIN SOURCE CURRENT 1 — — 2 mA INPUT TO OUTPUT CAPACITANCE 1 REFERENCED TO INHIBIT ACTIVE HIGH (OUTPUT ENABLED) Do not apply a voltage to the inhibit pin 2 MAX INHIBIT PIN CONDITION OPEN INHIBIT PIN VOLTAGE 1 kHz INPUT COMMON OPEN COLLECTOR OR UNCONNECTED 7 — 8 V Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. An external inhibit interface should be used to pull the inhibit low or leave it floating. The inhibit pin can be left unconnected if not used. Do not apply an external pull-up. www.craneae.com/interpoint Page 4 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Table 6: Electrical Characteristics: -55° to +125°C single output models PARAMETER CONDITIONS OUTPUT VOLTAGE 2 OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE 10 kHz - 2 MHz LINE REGULATION LOAD REGULATION 3 INPUT VOLTAGE INPUT CURRENT case, 28 VDC Vin, 100% SLH2805S load, unless otherwise specified SLH2812S SLH2815S MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS 4.80 5.00 5.20 11.52 12.00 12.48 14.40 15.00 15.60 VDC Vin = 16 to 40 VDC — — 300 — — 125 — — 100 mA W TC = 25°C Vin = 16 to 40 VDC — — 1.5 — — 1.5 — — 1.5 — 65 150 — 35 200 — 60 200 TC = -55°C TO +125°C — — 250 — — 400 — — 500 Vin = 16 TO 40 VDC — 115 300 — 60 400 — 60 650 mV Load 10% to 100% — 440 700 — 380 700 — 410 700 mV NO LOAD TO FULL Continuous 16 28 40 16 28 40 16 28 40 VDC TRANSIENT 1 50 ms — — 50 — — 50 — — 50 V NO LOAD — 2.9 17 — 2.3 17 — 2.4 17 INHIBITED — 1.3 5 — 1.3 5 — 1.3 5 mV p-p mA INPUT RIPPLE CURRENT 4 10 kHz - 10 MHz — 85 250 — 75 300 — 60 300 EFFICIENCY TC = 25°C 72 79 — 80 87 — 80 88 — 69 — — 69 — — 69 — — SHORT CIRCUIT POWER DISSIPATION — 0.4 1.5 — 0.3 1.2 — 0.3 1.2 W RECOVERY 1 — — 30 — — 30 — — 30 ms STEP LOAD RESPONSE TRANSIENT 7 — ±250 ±400 — ±220 ±700 — ±220 ±700 mV pk 50% - 100% - 50% RECOVERY 1, 6 — — 400 — — 400 — — 400 µs TRANSIENT 7 — — ±600 — — ±600 — — ±600 mV pk RECOVERY 6 — — 500 — — 500 — — 500 µs DELAY — 1 20 — 1 20 — 1 20 ms OVERSHOOT 1 — — 100 — — 500 — — 500 mV pk No Effect on DC Performance — — 100 — — 100 — — 100 µF TC = -55°C TO +125°C LOAD FAULT 5 STEP LINE RESPONSE 1 16 - 40 - 16 VDC START-UP 8 Capacitive Load 1 TC = 25°C, Each Output Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2.Specified at 50% load. 3. Although no minimum load is required, at no load the output voltage may exceed rating by up to 15%. 4.An external 6 µH inductor, added in series to the input, is necessary to maintain specifications. www.craneae.com/interpoint mA p-p % 5.Load fault is a short circuit into 1 . Recovery is into resistive full load. 6. Recovery is time to settle to within 1% of Vout final value. 7.Transition time > 10 µs. 8.Measured from release of inhibit until Vout settles to within 1% of final value at full load with Vin at 28 V. Page 5 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Table 7: Electrical Characteristics: -55° to +125°C Dual output models case, 28 VDC Vin, 100% SLH2805D load, unless otherwise specified SLH2812D SLH2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE 2 ±VOUT 4.80 5.00 5.20 11.52 12.00 12.48 14.40 15.00 15.60 — 150 240 — 62.5 100 — 50 80 OUTPUT CURRENT 3 Each Output VIN = 16 to 40 VDC TOTAL OUTPUT POWER 3 EAch Output VIN = 16 to 40 VDC TOTAL OUTPUT RIPPLE 10 kHz - 2 MHz ±VOUT LINE REGULATION ±VOUT LOAD REGULATION 4 10% - 100% 0.75 1.2 — 0.75 1.5 1.2 100 — 0.75 1.5 1.2 1.5 mA W — — 250 — — 400 — — 500 — — 250 — — 400 — — 500 VIN = 16 TO 40 VDC — 75 400 — 75 700 — 85 650 mV — 310 700 — 350 700 — 370 700 mV 16 28 40 16 28 40 16 28 40 VDC ms TC = -55°C TO +125°C Balanced LoadS CONTINUOUS NO LOAD TO FULL INPUT CURRENT — 125 VDC TC = 25°C ±VOUT INPUT VOLTAGE 300 UNITS TRANSIENT 1 50 ms 0 — 50 0 — 50 0 — 50 NO LOAD — 3.1 17 — 3.1 17 — 3.3 17 INHIBITED — 1.4 5 — 1.4 5 — 1.4 5 mV p-p mA INPUT RIPPLE CURRENT 5 10 kHz - 10 MHz – 80 250 – 90 300 – 100 300 EFFICIENCY TC = 25°C 72 75 — 80 87 — 80 87 — 69 — — 69 — — 69 — — SHORT CIRCUIT POWER DISSIPATION — 0.3 1.5 — 0.3 1.2 — 0.3 1.2 W RECOVERY 1 — — 30 – 1 30 — 1 30 ms Balanced Loads TRANSIENT 8 — ±150 ±400 — ±170 ±600 — ±200 ±700 mV pk 50% - 100% - 50% ±VOUT RECOVERY 1, 7 — — 600 — — 360 — — 600 µs TRANSIENT 8 — — ±600 — — ±600 — — ±600 mV pk 16 - 40 - 16 VDC ±VOUT Recovery 7 — — 500 — — 500 — — 500 µs DELAY — 1 20 — 2 20 — 2 20 ms ±VOUT OVERSHOOT 1 — — 500 — — 500 — — 500 mV pk No Effect on DC Performance — — 100 — — 100 — — 100 µF TC = -55°C TO +125°C LOAD FAULT 6 mA p-p % STEP LOAD RESPONSE STEP LINE RESPONSE START-UP 1 9 Capacitive Load 1 TC = 25°C, Each Output Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2.Specified at 50%/50% balanced load. 3. Maximum specification indicates 80% of the converter’s total current/power is available from either output, provided the other output carries 20% of the total power. 4. Although no minimum load is required, at no load the output voltage may exceed rating by up to 15%. www.craneae.com/interpoint 5.An external 6 µH inductor, added in series to the input, is necessary to maintain specifications. 6.Load fault is a short circuit into 1 . Recovery is into resistive full load. 7. Recovery is time for ±Vout to settle to within 1% of final value. 8.Transition time > 10 µs. 9.Measured from release of inhibit until Vout settles to within 1% of final value at full load with Vin at 28 V. Page 6 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt Electrical Characteristics: -55° to +125°C case, 28 VDC Vin, 100% load, unless otherwise These are examples for reference only and are not guaranteed specifications EMI: Representative of all SLH Models Emission Level (dB µA) 90 NARROWBAND CE 03 70 LIM IT 50 30 10 .015 0.1 10 1 50 Frequency (MHz), 28 Vin SLH2805S Unfiltered Figure 4 Emission Level (dB µA) 90 NARROWBAND CE 03 70 LIM IT 50 30 10 .015 0.1 1 Frequency (MHz), 28 Vin 10 SLH2805S with STF EMI Filter MIL-STD-461C, CE03 Figure 5 www.craneae.com/interpoint Page 7 of 12 SLH Rev AA - 2013.12.16 50 specified Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt 2 µs/div 6 µH inductor in series with input 20 V/div 100 µs/div 2 µs/div Representative of Single Input Ripple Current Representative of Single Output Ripple Voltage Figure 7 Vin 16 to 40 to 16 VDC, full resistive load Representative of Single Output Line Transient Figure 8 2 V/div 200 mV/div 20 V/div Figure 6 specified 200 mV/div 100 mV/div 100 mA/div Electrical Characteristics: -55° to +125°C case, 28 VDC Vin, 100% load, unless otherwise These are examples for reference only and are not guaranteed specifications 400 µs/div 1 ms/div Representative of Single Output Load Transient Representative of Single Output Turn-On Delay Figure 9 Figure 10 90.0 90.0 90.0 85.0 85.0 Efficiency (%) Efficiency (%) 80.0 75.0 70.0 65.0 60.0 Efficiency (%) 85.0 80.0 75.0 80.0 75.0 70.0 70.0 55.0 50.0 0.00 0.50 1.00 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2805S Efficiency Figure 11 www.craneae.com/interpoint 1.50 65.0 0.00 0.50 1.00 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2812S Efficiency Figure 12 Page 8 of 12 SLH Rev AA - 2013.12.16 1.50 65.0 0.00 0.50 1.00 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2815S Efficiency Figure 13 1.50 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt 2 µs/div 6 µH inductor in series with input 20 V/div 100 µs/div 2 µs/div Representative of Dual Input Ripple Current Representative of Dual Output Ripple Voltage Figure 15 Vin 16 to 40 to 16 VDC, full resistive load Representative of Single Output Line Transient Figure 16 2 V/div 200 mV/div 20 V/div Figure 14 1 ms/div 400 µs/div Representative of Dual Output Load Transient Representative of Dual Output Turn-On Delay Figure 17 Figure 18 90.0 85.0 85.0 80.0 75.0 90.0 85.0 Efficiency (%) 90.0 Efficiency (%) Efficiency (%) specified 200 mV/div 100 mV/div 100 mA/div Electrical Characteristics: -55° to +125°C case, 28 VDC Vin, 100% load, unless otherwise These are examples for reference only and are not guaranteed specifications 80.0 75.0 80.0 75.0 70.0 70.0 70.0 65.0 65.0 0.00 0.50 1.00 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2805D Efficiency Figure 19 www.craneae.com/interpoint 1.50 65.0 0.00 0.50 1.00 1.50 60.0 0.00 0.50 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2812D Efficiency Figure 20 Page 9 of 12 SLH Rev AA - 2013.12.16 1.00 Output Power (Watts) 16 Vin 28 Vin 40 Vin SLH2815D Efficiency Figure 21 1.50 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt BOTTOM VIEW CASE A2 Projection Weld Squared corner and dot on top of case indicate pin one. 4 6 5 0.835 (21.21) 0.000 0.27 ±0.02 (6.9 ±0.5) 0.000 0.270 max (6.98) 0.135 (3.43) 0.235 (5.97) 7 0.097 (2.46) 0.000 3 0.980 max. (24.89) 1 2 0.018 ± 0.002 dia. (0.46 ± 0.05) 0.435�(11.05) 0.535 (13.59) 0.805 max. (20.45) 0.697 (17.70) Weight: 12 grams typical 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 Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Materials Header Kovar/Nickel/Gold Cover Kovar/Nickel Pins Kovar/Nickel/Gold matched glass seal Gold plating of 50 - 225 microinches included in pin diameter Seal hole: 0.056 ±0.001 (1.42 ±0.03) Case A2, Rev G, 2013.05.07 Please refer to the numerical dimensions for accuracy. Figure 22: Case A2 www.craneae.com/interpoint Page 10 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt DC-DC CONVERTERS PROTOTYPE, CLASS H AND CLASS K, MIL-PRF-38534 ELEMENT EVALUATION NON-QML 1 PROTOTYPE /O COMPONENT-LEVEL TEST PERFORMED Element Electrical M/S 2 n QML CLASS H M/S 2 /H P CLASS K 3 M/S 2 /K P3 n n n n Visual n n n n Internal Visual n n Temperature Cycling n n Constant Acceleration n n Interim Electrical n Burn-in n Post Burn-in Electrical n Steady State Life n Voltage Conditioning Aging n Visual Inspection n Final Electrical n n n n Wire Bond Evaluation n n n n SEM n notes: 1. non-QML products may not meet all of the requirements of MIL-PRF-38534. 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components, Class H and K element evaluation. not applicable to Space Prototype (“O”) element evaluation. Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SEM: Scanning Electron Microscopy TABLE 1: ELEMENT EVALUATION–DC-DC CONVERTERS PROTOTYPE, CLASS H AND CLASS K Table 8: Element Evaluation www.craneae.com/interpoint Page 11 of 12 SLH Rev AA - 2013.12.16 Crane Aerospace & Electronics Power Solutions SLH Single and Dual DC-DC Converters 28 Volt input – 1.5 Watt DC-DC Converters Prototype, Class H and Class K MIL-PRF-38534 Environmental Screening and RHA1 P or R non-QML 2 Prototype Test Performed Class H /OO Class K /HP /HR /KP /KR n4 n4 n n n n n n n n n n n n n n n n n n4 n4 n n n4 n4 n n n n n n Non-destruct wire bond pull, Method 2023 Pre-cap Inspection, Method 2017, 2032 QML 3 Temperature Cycle (10 times) Method 1010, Cond. C, -65°C to +150°C, ambient Constant Acceleration Method 2001, 3000 g (Qual 5000 g) PIND, Test Method 2020, Cond. A Pre burn-in test, Group A, Subgroups 1 and 4 Burn-in Method 1015, +125°C case, typical n 5 96 hours n 160 hours 2 x 160 hours (includes mid-BI test) Final Electrical Test, MIL-PRF-38534, Group A, Subgroups 1 and 4: +25°C case n Subgroups 1 through 6, -55°C, +25°C, +125°C case n n n n Hermeticity Test Gross Leak, Method 1014 n n n n n Fine Leak, Method 1014 n n n n n n n n4 n4 n n Radiography, Method 2012 Post Radiography Electrical Test, +25°C case Final visual inspection, Method 2009 n n RHA P: 30 krad(Si) total dose n RHA R: 100 krad(Si) total dose SEE LET 86.3 n n n MeV-cm2/mg n n n n n Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Our Redmond facility has a DLA approved RHA plan for Interpoint power products. Our SMD products with RHA “R” code meet DLA requirements. 2. “OO” prototypes are non-QML products and may not meet all of the requirements of MIL-PRF-38534. “O” in the RHA designator position in Interpoint model numbers indicates DLA RHA “-” defined as no RHA. 3. All processes are QML qualified and performed by certified operators. 4. Not required by DLA but performed to assure product quality. 5. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. Table 9: Environmental Screening and RHA Levels SLH Single and Dual, SLH Rev AA - 2013.12.16. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc reserves the right to make changes in products or specifications without notice. Interpoint and SLH Series are trademarks of Crane Electronics, Inc. Copyright © 1999-2013 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint Page 12 of 12