TECHNICAL DATASHEET Rev. D RA2415UW8 8 W DC-DC Converter 9-36 Vdc Input 15 Vdc Output at 0.533 A DIP Package High Reliability COTS Converter Features: • Over 85% Efficient at Full Load • Wide Input Range • Fast Transient Response • Low Output Ripple • Fixed Switching Frequency • Output Over Current Protection • Output Short Circuit Protection • 1000 Vdc Isolation (888) 597-WALL • • • • • • • ISO9001 Compliant IPC-A-610 Compliant J-STD-001 Compliant Conformal Coat IAW IPC-CC-830, Type UR GEIA-STD-0005-2, Level 2B Tin Whisker Compliant 100% Burn In Manufactured in the United States www.wallindustries.com 1 of 11 WALL INDUSTRIES, INC. Technical Specifications Rev. D TECHNICAL DATASHEET RA2415UW8 Model No. RA2415UW8 Unless otherwise noted, all specifications are based over the entire rated ambient temperature as described in Graph 2. See Below Note for Further Explanation Related condition Min Nom Max SPECIFICATION Switching Frequency 273 307 338 Unit kHz INPUT (Vin) Operating Voltage Range UVLO Turn On at UVLO Turn Off at UVLO Hysterisis Maximum Input Current (Graph 3) No Load Input Current (Graph 5) Reflected Ripple Current (Photo 1) Input Surge Voltage Input Capacitance Low Line No Load With a 1 uF ceramic across the input 100 mS At 25°C Vdc Vdc Vdc Vdc mA mA mA Vdc uF EFFICIENCY (Graph 1) = OUTPUT (Vo) Po(Full Load) Pin(Full Load) Vin = Nominal Line 9 8.17 7.70 0.47 4.11 24 8.59 7.99 0.6 1050 10 20 5.14 36 9.02 8.29 0.73 1100 20 40 50 6.17 84 86 - 14.787 -1.42 15.00 15.213 +1.42 % Voltage Set Point Measured at full load and nominal Vin at 25 oC – see Temperature Drift for Set Point at other temperatures Load Regulation (Graph 6) = Vo(Min. Load) - Vo(Full Load) Vin = Nominal Line Vo(Min. Load) - 0.05 0.5 % Line Regulation (Graph 7) = Vo(Low Line) - Vo(High Line) Io = 50% Load Vo(Low Line) - 0.02 0.2 % Temperature Drift (Graph 8) = Vo(25°C) - Vo(-40°C or + 85°C) Io = 50% Load Vo(25°C) - 0.006 0.02 % / °C - 75 150 mVpk-pk 0.05 0.7 15.3 1.0 17.0 0.533 1.3 19.3 A A Vdc 0 200 200 5 0 - 300 300 12 0 - mV µs ms % mS 2.0 1.2 - 1.2 6 350 7.5 - 6.0 0.8 5.5 1.5 12 700 10 25 Vdc Vdc Vdc mA ms uS mA Vdc 1000 1000 20 - 2350 3000 Vdc Vdc Ripple and Noise (Photo 4) Current Current Limit Over Voltage Limit DYNAMIC RESPONSE Load step ∆ V (Photo 2) Recovery Time (Photo 2) Turn On Delay (Photos 5 & 6) Turn On Overshoot (Photos 5 & 7) Hold Up Time (Photos 6 & 8) REMOTE ON/OFF Remote ON – Active High Remote OFF – Active High Remote ON/OFF pin Floating – Active High ION/OFF Sink to pull low – Active High Turn On Delay – (Photo 7) Turn Off Delay – (Photo 8) Input Current During Remote Off – Graph 6 Maximum Input Voltage ISOLATION Input-Output Input/Output-Chassis Isolation Resistance Isolation Capacitance THERMAL Ambient Operating Temperature (Graph 2) Storage Temperature MTBF MECHANICAL Weight (888) 597-WALL Measured at full load and nominal line with a 1uF ceramic across the output & 20 MHz BW Unit operational and within set point limits at no load Power Limited 25% to 75% Io, di/dt=0.15A/uS, Cout=1uF Recovery to within 1% Vout (nom), Cout=1uF From Vin(min) to Vout (90%), no external capacitance Full Load Resistive From Vin (min) to VULVO_Turn_Off Active High Min High to Enable Max Low to Disable Over Operating Voltage Range VEnable=0V, Vin=36V Enable (max Low) to Vout (min) Enable (0V) to Vout (min) At Nominal Input Voltage At Enable pin 1 minute 1 minute Max. Ambient limited by Derating Curves (Graph 2) MIL-HDBK-217F Notice 2; Tamb=75oC -40 -55 17 www.wallindustries.com Graph 2 25 125 369,0000 See Figure 1 19 21 Vdc % GΩ pF °C °C hours g Page 2 of 11 WALL INDUSTRIES, INC. TECHNICAL DATASHEET Rev. D RA2415UW8 Figure 1: Mechanical Dimensions LABEL NAVSEA NUMBER .025 [0.64] STANDOFF 4X OPTIONAL SEE ODERING INFORMATION DC/DC CONVERTER DENOTES PIN-1 ESD 8246297-2 XXXX EXETER, NH 03833 USA XXXX DATE CODE SERIAL NUMBER 1 2 3 .40 [10.2] 9 11 16 14 .15 [3.8] MIN .80 [20.3] 1.000 [25.40] .08 [1.9] .000 [0.00] .100 [2.54] .20 [5.1] .60 [15.2] .00 [0.0] .10 [2.5] BAR CODE, CONTAINS: SERIAL NO, DATE CODE & BOM REVISION LEVEL PIN Ø.02 [0.5] .80 [20.3] 23 22 1.25 [31.8] NOTES: Pin to Pin Tolerance: ± 0.01 (±0.3) Pin Diameter Tolerance: ±0.005 (±0.13) Unless otherwise specified all dimensions are in inches [XX] are in millimeters. Applied Tolerances: Angles ±1°, .XX = ±0.02 [0.5] .XXX = ± 0.010 [0.25] Do not scale drawing. Interpret dimension and tolerance per ASME Y14.5M – 1994 Third Angle Projection Pin Material: Brass alloy “360, ½ Hard” per ASTM B16-85; chemical composition: 61.5% Cu, 35.4% Zn, 3.1% Pb Pin Finish: 10u Gold over Nickel. Meets the solderability requirements of MIL-STD-202, Method 208. PCB Cleaning: Devices shall be capable of exposure to the following PCB assembly cleaning processes: Aquanox XJN+ an aqueous cleaner chemistry made by Kyzen Corp. This solution operates at a concentration of 25% XJN and 75% deionized water sprayed onto the device at 25-40 PSI. This cleaning process includes the following steps: a. Pre-wash and wash at 150°F. Dwell time 3-4 minutes. b. Isolation water rinse at 140°F c. Deionized water rinse at 140°F d. Final deionized water rinse e. Blower dry f. 1 hour CCA bake at 125 Deg F prior to CCA conformal coat. 10. Unit is not hermetically sealed 11. Pin Table: Pin # Description Pin Ø 1 Enable 0.020 (0.51) 2 -Vin 0.020 (0.51) 3 -Vin 0.020 (0.51) 9 NC 0.020 (0.51) 11 NC 0.020 (0.51) 14 +Vout 0.020 (0.51) 16 -Vout 0.020 (0.51) 22 +Vin 0.020 (0.51) 23 +Vin 0.020 (0.51) 1. 2. 3. 4. 5. 6. 7. 8. 9. (888) 597-WALL www.wallindustries.com Page 3 of 11 WALL INDUSTRIES, INC. Rev. D TECHNICAL DATASHEET RA2415UW8 DESIGN CONSIDERATIONS Under Voltage Lock Out (UVLO) The converter output is disabled until the input voltage exceeds the UVLO turn-on limit. The converter will remain ON until the input voltage falls below the UVLO turn-off limit. Over Current Protection The converter is protected from short circuit and over current conditions. Upon sensing an over current, the output will begin to drop (or ‘foldback’) limiting the output power. Further increasing the output current will cause the converter to shut off and then restart (or ‘hiccup’) until the over current condition is removed. Shorting the output will cause the converter to immediately enter the ‘hiccup’mode. Over Temperature Protection The converter is NOT protected from over temperature conditions. Exceeding the rated case temperature of 100°C may cause permanent damage to the unit. Input Filter No additional input capacitor is needed for the power supply to operate. However, to reduce input ripple and high frequency noise, it is highly recommended that a minimum 1 µF/50 V ceramic capacitor be added across the input pins. Output Filter No additional output capacitor is needed for the power supply to operate. However, to reduce high frequency noise, it is highly recommended that a minimum 1µF/10V ceramic capacitor be added across the output pins. Remote ON/OFF This converter has the ability to be remotely turned ON or OFF. The RA series is primary-side referenced Active-High. Active-High means that a logic high between the ENABLE pin and –Vin will turn ON the supply. With Active-High, if the ENABLE pin is left floating, the supply will still be enabled. Fusing For applications that are required to meet UL and/or CSA safety regulations, the input to the converter shall be current limited or supplied through a 3 A fuse. This unit is designed to meet these regulations, but is not certified. Burn-In Units are 100% burned in at full load, nominal line and 50°C ambient for 24 hours. Final Electrical Test See Appendix I for description of Final Electrical Test. All units tested 100% at 25°C. Qualification Testing 40 samples, No Failures Allowed, 40/0 (Devices shall be exposed to PCB cleaning process prior to testing) Subgroup 1 - 1000 hour life test per MIL-STD-883, Method 1015: 1. 2. 3. 10 samples, No Failures Allowed, 10/0 Final Electrical Test performed at maximum ambient and full load per Graph 2 with no external air Final Electrical Test performed at 168, 250, 500 and 1000 hours Subgroup 2 - Accelerated Non-Operating Humidity and Thermal/Mechanical Fatigue: 1. 2. 3. 4. 5. 6. 7. 10 samples, No Failures Allowed, 10/0 500 hrs at 85°C at 85% Relative Humidity, Unbiased 200 temperature cycles (T/C), -46°C to +85°C @ 5°C/minute minimum, 45 minute dwell Final Electrical Test at 25°C 500 hrs at 85°C at 85% Relative Humidity, Unbiased 200 temperature cycles (T/C), -46°C to +85°C @ 5°C/minute minimum, 45 minute dwell Final Electrical Test at 25°C Subgroup 3 - Snap Start from Low Operating Temp: 1. 2. 3. 4. 5. 10 samples, No Failures Allowed, 10/0 Cold soak at -40°C until device reaches thermal equilibrium Power up under full load with worse case input transient waveform applied (as specified on datasheet) Total cycles: 500 (definition of 1 cycle: -40°C soak, power up, re-soak -40°C) Final Electrical Test at 25°C Subgroup 4 - Non-Operating Vibration and Shock: 1. 2. 3. 4. 10 samples, No Failures Allowed, 10/0 Non-operating Mechanical Shock: Method 2002, MIL-STD-883, Condition B, 1500g, 0.5 ms pulse Non-operating Random Vibration: Method 2026, MIL-STD-883, Condition K, 44.8 grms Final Electrical Test at 25°C (888) 597-WALL www.wallindustries.com Page 4 of 11 WALL INDUSTRIES, INC. TECHNICAL DATASHEET Rev. D RA2415UW8 Graph 1: Efficiency vs. Output Current 90% 85% 80% 75% Effiency (%) 70% Vin=9V Vin=16V Vin=24V Vin=30V Vin=36V 65% 60% 55% 50% 45% 40% 35% 30% 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Io (A) Graph 2: Max. Ambient vs. Output Current 0.60 0.55 0.50 0.45 Io (A) 0.40 0.35 0.30 0.25 100 LFM (Vin=16-36V) & 200 LFM (Vin=9-15V) No Air (Vin=16-36V) & 100 LFM (Vin=9-15V) No Air (Vin=9-15V) 0.20 0.15 0.10 0.05 0.00 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient (°C) (888) 597-WALL www.wallindustries.com Page 5 of 11 WALL INDUSTRIES, INC. Rev. D Graph 3: Input Current vs. Input Voltage RA2415UW8 Graph 4: Power Dissipation vs. Input Voltage 2.0 1.20 Io=0.05A Io=0.1A Io=0.2A Io=0.3A Io=0.4A Io=0.5A Io=0.6A 1.10 1.00 0.90 1.8 1.6 1.4 Pdissipation (W) 0.80 0.70 Iin (A) TECHNICAL DATASHEET 0.60 0.50 0.40 1.2 1.0 0.8 0.6 Io=0.05A Io=0.1A Io=0.2A Io=0.3A Io=0.4A Io=0.5A Io=0.6A 0.30 0.4 0.20 0.2 0.10 0.0 0.00 9 18 27 9 36 18 Vin(V) 1.0 40 0.8 Iin (mA) 20 0.4 12 0.6 10 0.5 8 0.4 6 0.3 Input Current Power Dissipation 4 Input Current Power Dissipation 0.2 0 0.0 18 27 36 0.2 2 0.1 0 0.0 9 Vin(V) (888) 597-WALL Pdissipation (W) 0.6 Pdissipation (W) 30 Graph 6: ‘Remote Off’ Input Current and Power Dissipation vs. Input Voltage Iin (mA) 50 9 36 Vin(V) Graph 5: No Load Input Current and Power Dissipation vs. Input Voltage 10 27 18 27 36 Vin(V) www.wallindustries.com Page 6 of 11 WALL INDUSTRIES, INC. TECHNICAL DATASHEET Rev. D RA2415UW8 Graph 6: Load Regulation Graph 7: Line Regulation 0.100% 0.100% Vin=9V Vin=16V Vin=24V Vin=30V Vin=36V 0.075% 0.050% 0.025% Regulation (%) Regulation (%) 0.050% 0.075% 0.000% -0.025% 0.025% 0.000% -0.050% -0.050% -0.075% -0.075% -0.100% Io=0.0A Io=0.1A Io=0.2A Io=0.3A Io=0.4A Io=0.5A Io=0.6A -0.025% -0.100% 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Io (A) 9 18 27 36 Vin (V) Graph 8: Output Temperature Drift 1.0% 0.8% 0.5% Vout (%) 0.3% 0.0% -0.3% -0.5% -0.8% -1.0% -40 -20 0 20 40 60 80 100 Case Temperature (°C) (888) 597-WALL www.wallindustries.com Page 7 of 11 WALL INDUSTRIES, INC. Rev. D TECHNICAL DATASHEET RA2415UW8 Photo 1: Input Ripple Voltage and Current Vin = 24 V, Iout = 0.533 A With a 1 µF Ceramic across the Input Photo 2: Transient Response – 0.15A/µs Vin = 24 Vdc, Iout = 0.13 to 0.40 A (25% to 75%) With a 1 µF Ceramic across the Output Photo 3: Output Ripple and Noise (20 MHz BW) Vin = 24V, Iout = 0.533 A Photo 4: Output Ripple and Noise (20 MHz BW) Vin = 24V, Iout = 0.533 A With a 1 µF Ceramic across the Output (888) 597-WALL www.wallindustries.com Page 8 of 11 WALL INDUSTRIES, INC. Rev. D TECHNICAL DATASHEET RA2415UW8 Photo 5: Normal Turn On at No Load Vin = 24 Vdc; Iout = 0 A Photo 6: Turn On at Full Load Vin = 24 Vdc; Iout = 0.533 A Cout = 680 µF Aluminum Electrolytic Photo 7: Turn On by Enable Vin = 24 Vdc; Iout = 0.533 A Photo 8: Turn Off by Enable Vin = 24 Vdc; Iout = 0.533 A (888) 597-WALL www.wallindustries.com Page 9 of 11 WALL INDUSTRIES, INC. Rev. D TECHNICAL DATASHEET RA2415UW8 PART ORDERING: RA2415UW8 RA2815UW8/ES (with Electrical Screening) RA2415UW8/SO (with Standoffs) RA2415UW8/ES/SO (with Electrical Screening and Standoffs) Electrical Screening Option: 1. 2. 3. 4. 5. Internal Visual: IPC-A-610 Temperature cycling: MIL-STD-883, Method 1010, Condition B, -55 to +125°C, 10 cycles Burn-In: MIL-STD-883, Method 1015, 96 hours, Iout=Full Load, Ambient as specified in Graph 2 for specified input voltage range and no external air. Final Electrical: 100% at 25°C, See Appendix I External Inspection: MIL-STD-883, Method 2009 Company Information: Wall Industries, Inc. has created custom and modified units for over 40 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2000 certification is just one example of our commitment to producing a high quality, well documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: Toll Free: Fax: E-mail: Web: Address: (888) 597-WALL (603)778-2300 (888)587-9255 (603)778-9797 [email protected] www.wallindustries.com 5 Watson Brook Rd. Exeter, NH 03833 www.wallindustries.com Page 10 of 11 WALL INDUSTRIES, INC. Rev. D TECHNICAL DATASHEET RA2415UW8 Appendix I RA2415UW8 ATE FINAL ELECTRICAL TEST DESCRIPTION Rev. – A 3/21/08 Sequence #1 - Set State • Set Vin = 24 Vdc • Set Iout = .53 A Sequence #2 - Output voltage accuracy • Under the previously set conditions, measure the output voltage. • V min = 14.85 Vdc • V max = 15.15 Vdc Sequence #3 - Efficiency • Under the previously set conditions, measure the efficiency. • Min E = 84% • Max E = 99% Sequence #4 - Set State • Set Vin = 24 Vdc • Set Iout = 100 mA Sequence #5 - Efficiency • Under the previously set conditions, measure the efficiency. • Min E = 65% • Max E = 99% Sequence #6 – Line Regulation • Set number of points to take measurements = 5 • Set low line voltage for Vin = 9 Vdc • Set high line voltage for Vin = 36 Vdc • Set I out = 0.27 A • Min acceptable value = 0% delta • Max acceptable value = 0.2% delta Sequence #7 – Load Regulation • Set number of points to take measurements = 6 • Set Vin = 24 Vdc • Set low current = 0.05 A • Set high current = 0.53 A • Min acceptable value = 0% • Max acceptable value = 0.5% \Sequence #6 – Current Limit Threshold • Set Vin = 24 Vdc • Set threshold = 98% Vout • Increase Iout in increments of 0.1 A • I out start at 0.53 A • Min acceptable value = 0.7 A • Max acceptable value = 1.3 A Sequence #7 – Ripple Amplitude • Set Vin = 24 Vdc • Set Iout = 0.53 A • Min acceptable measurement = 0 • Max acceptable measurement = 150 mVp-p (888) 597-WALL www.wallindustries.com Page 11 of 11