MQFL-28E-05D Dual Output H igH R eliability DC-DC C onveRteR 16-70V 16-80V ±5.0V 24A 90% @ 12A / 88% @ 24A Continuous Input Transient Input Output Total Output Efficiency F ull P oweR o PeRation : -55ºC to +125ºC The MilQor® series of high-reliability DC-DC converters brings SynQor’s field proven high-efficiency synchronous rectifier technology to the Military/Aerospace industry. SynQor’s innovative QorSeal® packaging approach ensures survivability in the most hostile environments. Compatible 2 ENA with the industry standard format, these converters operate RE SHA at a fixed frequency, have no opto-isolators, and follow conservative component derating guidelines. 05 8E- Er +VIN They are -2 QFL N IN RT E CAS designed and manufactured to comply with a wide range of 1 ENA t VEr M DC Con out@24A 1WX10 V E C 0 . AG D 5 1C in ± 5-30 320 28V D/C T C OU SYN C IN SYN military standards. -ES D-Y TRIM T -VOU RTN OUT T +VOU 0 000 000 S/n Design Process MQFL series converters are: • Designed for reliability per NAVSO-P3641-A guidelines • Designed with components derated per: — MIL-HDBK-1547A — NAVSO P-3641A Qualification Process MQFL series converters are qualified to: • MIL-STD-810F — consistent with RTCA/D0-160E • SynQor’s First Article Qualification — consistent with MIL-STD-883F • SynQor’s Long-Term Storage Survivability Qualification • SynQor’s on-going life test In-Line Manufacturing Process • AS9100 and ISO 9001 certified facility • Full component traceability • Temperature cycling • Constant acceleration • 24, 96, 160 hour burn-in • Three level temperature screening Product# MQFL-28E-05D Phone 1-888-567-9596 DesigneD & ManufactureD in the usa featuring Qorseal® hi-rel asseMbly Features • • • • • • • • Fixed switching frequency No opto-isolators Parallel operation with current share Clock synchronization Primary and secondary referenced enable Continuous short circuit and overload protection Input under-voltage and over-voltage shutdown Output voltage trim Specification Compliance MQFL series converters (with MQME filter) are designed to meet: • MIL-HDBK-704-8 (A through F) • RTCA/DO-160 Section 16, 17, 18 • MIL-STD-1275 (B, D) • DEF-STAN 61-5 (part 6)/(5, 6) • MIL-STD-461 (C, D, E, F) • RTCA/DO-160(E, F, G) Section 22 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 1 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Specification BLOCK DIAGRAM REGULATION STAGE ISOLATION STAGE CURRENT SENSE 1 POSITIVE INPUT T1 T1 T2 7 POSITIVE OUTPUT T2 2 8 ISOLATION BARRIER INPUT RETURN 3 CASE GATE DRIVERS UVLO OVSD CURRENT LIMIT 4 T1 OUTPUT RETURN T2 9 NEGATIVE OUTPUT GATE DRIVERS 12 MAGNETIC ENABLE 1 PRIMARY CONTROL 5 ENABLE 2 DATA COUPLING SYNC OUTPUT 11 SECONDARY CONTROL SHARE 10 6 TRIM SYNC INPUT BIAS POWER CONTROL POWER TRANSFORMER POSITIVE OUTPUT TYPICAL CONNECTION DIAGRAM 28 Vdc + --open means on 1 +VIN 2 IN RTN 3 CASE 4 ENA 1 5 SYNC OUT 6 SYNC IN ENA 2 12 SHARE 11 MQFL TRIM 10 -VOUT 9 open means on + Load -- OUT RTN 8 +VOUT 7 + Load -- Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 2 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Specification MQFL-28E-05D ELECTRICAL CHARACTERISTICS Parameter Min. Typ. Max. Units Notes & Conditions Vin=28V dc ±5%, +Iout = -Iout = 12A, CL=0µF, free running (see Note 10) unless otherwise specified Specifications subject to change without notice ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Reverse Bias (Tcase = 125ºC) Reverse Bias (Tcase = -55ºC) Isolation Voltage Continuous Transient (≤100µs) Operating Case Temperature Storage Case Temperature Lead Temperature (20s) Voltage at ENA1, ENA2 INPUT CHARACTERISTICS Operating Input Voltage Range (continuous) Operating Input Voltage Range (transient, 1s) Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Voltage Hysteresis Input Over-Voltage Shutdown Turn-Off Voltage Threshold Turn-On Voltage Threshold Shutdown Voltage Hysteresis Maximum Input Current No Load Input Current (operating) Disabled Input Current (ENA1) Disabled Input Current (ENA2) Input Terminal Current Ripple (peak to peak) OUTPUT CHARACTERISTICS Output Voltage Set Point (Tcase = 25ºC) Positive Output Negative Output Output Voltage Set Point Over Temperature Positive Output Negative Output Positive Output Voltage Line Regulation Positive Output Voltage Load Regulation Total Positive Output Voltage Range Output Voltage Cross Regulation Output Voltage Ripple and Noise Peak to Peak Total Operating Current Range Single Output Operatin Current Range Operating Output Power Range Output DC Current-Limit Inception Short Circuit Output Current Back-Drive Current Limit while Enabled Back-Drive Current Limit while Disabled Maximum Output Capacitance DYNAMIC CHARACTERISTICS Output Voltage Deviation Load Transient For a Pos. Step Change in Load Current For a Neg. Step Change in Load Current Settling Time (either case) Output Voltage Deviation Line Transient For a Pos. Step Change in Line Voltage For a Neg. Step Change in Line Voltage Settling Time (either case) Turn-On Transient Output Voltage Rise Time Output Voltage Overshoot Turn-On Delay, Rising Vin Turn-On Delay, Rising ENA1 Turn-On Delay, Rising ENA2 Product# MQFL-28E-05D -500 -800 -55 -65 -1.2 100 100 -0.8 -1.2 V V V V 500 800 125 135 300 50 V V °C °C °C V 16 16 28 28 70 80 V V 14.75 13.80 0.50 15.50 14.40 1.10 16.00 15.00 1.80 V V V 90.0 82.0 3.0 95.0 86.0 9.0 110 2 25 40 100.0 90.0 15.0 9.5 160 5 50 60 V V V A mA mA mA mA 4.95 -5.05 5.00 -5.00 5.05 -4.95 V V 4.90 -5.10 -20 15 4.90 100 5.00 -5.00 0 32 5.00 200 15 5.10 -4.90 20 50 5.10 350 60 24 19 120 31 34 60 10,000 V V mV mV V mV mV A A W A A A mA µF -300 300 50 500 200 mV mV µs 250 500 500 500 mV mV µs 6 0 5.5 3.0 1.5 10 2 8.0 6.0 3.0 ms % ms ms ms 0 0 0 25 26 -500 -500 -500 28 30 8 10 Phone 1-888-567-9596 Group A Subgroup (see Note 14) See Note 1 Input/Output to Case, Input to Output HB Grade Products, See Notes 2 & 17 1, 2, 3 See Note 3 1, 2, 3 1, 2, 3 See Note 16 Vin = 16V; +Iout = -Iout = 12A See Note 5 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Bandwidth = 100kHz – 10MHz; see Figure 20 See Note 12 1 1 See Note 12 See Note 12 +Vout@(+Iout= -Iout=0A) - +Vout@(+Iout= -Iout=12A); See Note 12 See Note 12 -Vout@(+Iout= -Iout=4.8A) - -Vout@(+Iout=19.2A, -Iout=4.8A); See Notes 11,12 Bandwidth = 100kHz - 10MHz; CL=11µF on both outputs (+Iout) + (-Iout) Maximum +Iout or -Iout Total on both outputs +Iout + -Iout; +Iout = -Iout; See Note 4 +Vout ≤ 1.2V Total on both outputs; See Note 5 See Note 6 Total Iout step = 12A‹-›24A, 2.4A‹-›12A; CL=11µF on both outputs “ See Note 7 See Note 8 Vin step = 16V ‹-› 50V; CL=11µF on both output “ See Note 7 +Vout = 0.5V-›4.5V Doc.# 005-0005158 Rev. E 4, 5, 6 4, 5, 6 4, 5, 6 See Note 5 4, 5, 6 4, 5, 6 4, 5, 6 ENA1, ENA2 = 5V; See Note 9 ENA2 = 5V ENA1 = 5V www.SynQor.com 2, 3 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 See Note 5 1, 2, 3 1, 2, 3 See Note 5 06/10/15 Page 3 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Specification MQFL-28E-05D ELECTRICAL CHARACTERISTICS (Continued) Parameter Min. Typ. Max. Units Notes & Conditions Specifications subject to change without notice Vin=28V dc ±5%, +Iout = -Iout = 12A, CL=0µF, free running (see Note 10) unless otherwise specified EFFICIENCY Iout = 24A (16Vin) 83 88 % Iout = 12A (16Vin) 87 90 % Iout = 24A (28Vin) 83 88 % Iout = 12A (28Vin) 86 89 % Iout = 24A (40Vin) 82 87 % Iout = 12A (40Vin) 85 88 % Iout = 24A (70Vin) 79 84 % Load Fault Power Dissipation 16 32 W Iout at current limit inception point; See Note 4 Short Circuit Power Dissipation 24 33 W +Vout ≤ +1.2V; -Vout ≥ -1.2V ISOLATION CHARACTERISTICS Isolation Voltage Dielectric strength Input RTN to Output RTN 500 V Any Input Pin to Case 500 V Any Output Pin to Case 500 V Isolation Resistance (input rtn to output rtn) 100 MΩ Isolation Resistance (any pin to case) 100 MΩ Isolation Capacitance (input rtn to output rtn) 44 nF FEATURE CHARACTERISTICS Switching Frequency (free running) 500 550 600 kHz Synchronization Input Frequency Range 500 700 kHz Logic Level High 2.0 10 V Logic Level Low -0.5 0.8 V Duty Cycle 20 80 % Synchronization Output Pull Down Current 20 mA VSYNC OUT = 0.8V Duty Cycle 25 75 % Output connected to SYNC IN of other MQFL unit Enable Control (ENA1 and ENA2) Off-State Voltage 0.8 V Module Off Pulldown Current 80 µA Current drain required to ensure module is off On-State Voltage 2 V Module On Pin Leakage Current 20 µA Imax drawn from pin allowed, module on Pull-Up Voltage 3.2 4.0 4.5 V See Figure A Output Voltage Trim Range -0.4 0.5 V (+Vout) - 5V; See Figure E RELIABILITY CHARACTERISTICS Calculated MTBF (MIL-STD-217F2) GB @ Tcase = 70ºC 2800 103 Hrs. AIF @ Tcase = 70ºC 420 103 Hrs. WEIGHT CHARACTERISTICS Device Weight 79 g Electrical Characteristics Notes 1. Converter will undergo input over-voltage shutdown. 2. Derate output power for continuous operation per Figure 5. 135ºC is above specified operating range. 3. High or low state of input voltage must persist for about 200µs to be acted on by the lockout or shutdown circuitry. 4. Current limit inception is defined as the point where the output voltage has dropped to 90% of its nominal value. 5. Parameter not tested but guaranteed to the limit specified. 6. Load current transition time ≥ 10µs. 7. Settling time measured from start of transient to the point where the output voltage has returned to ±1% of its final value. 8. Line voltage transition time ≥ 100µs. 9. Input voltage rise time ≤ 250µs. 10. Operating the converter at a synchronization frequency above the free running frequency will cause the converter’s efficiency to be slightly reduced and it may also cause a slight reduction in the maximum output current/power available. For more information consult the factory. 11. The regulation stage operate to control the positive output. The negative output displays cross regulation. 12. All +Vout and -Vout voltage measurements are made with Kelvin probes on the output leads. 13. SHARE pin outputs a power failure warning pulse during a fault condition. See Current Share section. Group A Subgroup (see Note 14) 1, 2, 3 1 1 1 1 1 1 1 1 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 See Note 5 See Note 5 See Note 5 1, 2, 3 See Note 5 1, 2, 3 See Note 5 1, 2, 3 See Note 5 14. Only the ES and HB grade products are tested at three temperatures. The C- grade products are tested at one temperature. Please refer to the Construction and Environmental Stress Screening Options table for details. 15. These derating curves apply for the ES and HB grade products. The C- grade product has a maximum case temperature of 70ºC. 16. Input Over Voltage Shutdown test is run at no load, full load is beyond derating condition and could cause damage at 125ºC. 17. The specified operating case temperature for ES grade products is -45ºC to 100ºC. The specified operating case temperature for C- grade products is 0ºC to 70ºC. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 4 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures 24 100 95 20 Power Dissipation (W) Efficiency (%) 90 85 80 75 16 28 40 70 70 65 60 0 12 24 36 48 60 72 84 96 Vin Vin Vin Vin 108 16 12 8 16 28 40 70 4 0 120 0 12 24 36 Total Output Power (W) 72 96 108 120 24 95 20 Power Dissipation (W) 90 85 80 75 16 28 40 70 70 65 16.8/2.4 14.4/4.8 12/7.2 9.6/9.6 7.2/12 Vin Vin Vin Vin 4.8/14.4 2.4/16.8 16 12 8 16 Vin 28 Vin 4 40 Vin 70 Vin 0 19.2/0 0/19.2 Load Current (A), +Iout / -Iout 16.8/2.4 14.4/4.8 12/7.2 9.6/9.6 7.2/12 24 16 Vin 95 28 Vin 20 Power Dissipation (W) 90 85 80 75 16 Vin 70 28 Vin 40 Vin 70 Vin 16 12 8 40 Vin 65 70 Vin 25ºC 125ºC 4 -55ºC Case Temperature (ºC) Phone 1-888-567-9596 25ºC 125ºC Case Temperature (ºC) Figure 5: Efficiency at 60% load (7.2A load on +5V and 7.2A load on -5V) versus case temperature for Vin = 16V, 28V, 40V, and 70V. Product# MQFL-28E-05D 0/19.2 Figure 4: Power dissipation vs. output current, with total output current fixed at 80% load (96W) and loads split as shown between the +5V and -5V outputs at minimum, nominal, and max input voltage at 25°C. 100 60 -55ºC 4.8/14.4 2.4/16.8 Load Current (A), +Iout / -Iout Figure 3: Efficiency vs. output current, with total output current fixed at 80% load (96W) and loads split as shown between the +5V and -5V outputs at minimum, nominal, and maximum input voltage at 25°C. Efficiency (%) 84 Figure 2: Power dissipation vs. output power, from zero load to full load with equal load on the +5V and -5V outputs at minimum, nominal, and maximum input voltage at 25°C. 100 Efficiency (%) 60 Total Output Power (W) Figure 1: Efficiency vs. output power, from zero load to full load with equal load on the +5V and -5V outputs at minimum, nominal, and maximum input voltage at 25°C. 60 19.2/0 48 Vin Vin Vin Vin Figure 6: Power dissipation at 60% load (7.2A load on +5V and 7.2A load on -5V) versus case temperature for Vin =16V, 28V, 40V, and 70V. www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 5 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures -5.20 -5.15 5.10 -5.10 5.05 -5.05 5.00 -5.00 4.95 -4.95 4.90 -4.90 4.85 -4.85 +Vout 4.75 19.4/4.8 14.4/9.6 12/12 -5.1 5.0 -5.0 4.9 -4.9 4.8 -4.8 +Vout Figure 7: Load regulation vs. load current with power fixed at full load (120W) and load currents split as shown between the +5V and -5V outputs, at nominal input voltage and Tcase = 25ºC. Figure 8: Load regulation vs. load current with power fixed at 80% load (96W) and load currents split as shown between the +5V and -5V outputs, at nominal input voltage and Tcase = 25ºC. -5.15 5.05 5.1 -5.10 5.00 -5.00 5.1 -5.05 4.95 -4.95 5.0 -5.00 4.90 -4.90 5.0 -4.95 4.85 -4.85 4.9 -4.90 +Vout 4.9 4.8 -Vout 0 24 48 72 96 120 Positive Output (V) 5.10 Negative Output (V) Positive Output (V) -4.6 7.2/12 4.8/14.4 2.4/16.8 0/19.2 -5.20 Input voltage has virtually no effect on cross regulation 5.2 -5.05 4.80 -4.85 4.75 -4.80 4.70 -4.80 +Vout -4.75 -Vout 0 24 48 72 96 120 -4.70 Total Output Power (W) Figure 9: Load regulation vs. total output power from zero to to full load where +Iout equals three times -Iout at nominal input voltage and Tcase = 25ºC. 24 120 18 90 12 60 Tmax = 105ºC, Vin = 70 6 5 Tmax = 105ºC, Vin = 50 Tmax = 105ºC, Vin = 28 Tmax = 125ºC, Vin = 70 30 Tmax = 125ºC, Vin = 50 Figure 10: Load regulation vs. total output power from zero to to full load where -Iout equals three times +Iout at nominal input voltage and Tcase = 25ºC. Tmax = 125ºC, Vin = 28 Output Voltage (V) 150 Pout (W) 30 6 -5.10 Input voltage has virtually no effect on cross regulation Total Output Power (W) Iout (A) 9.6/9.6 +IOUT (A) / -IOUT (A) +IOUT (A) / -IOUT (A) 5.2 -4.7 -Vout 4.6 19.6/0 16.8/2.4 14.4/4.8 12/7.2 -4.75 4.8/19.2 9.6/14.4 5.1 4.7 -4.80 -Vout -5.2 Negative Output (V) 4.80 -5.3 Input voltage has virtually no effect on cross regulation 5.2 Positive Output (V) 5.15 Negative Output (V) Positive Output (V) 5.3 -5.25 Input voltage has virtually no effect on cross regulation 5.20 Negative Output (V) 5.25 4 3 2 1 Tmax = 145ºC, Vin = 50 0 Tmax = 145ºC, Vin = 28 25 35 45 55 65 75 85 95 105 115 125 135 145 0 0 Figure 11: Total Output Current / Total Output Power derating curve as a function of Tcase and the maximum desired power MOSFET junction temperature (see Note 15). Product# MQFL-28E-05D Phone 1-888-567-9596 0 5 10 15 20 25 30 Load Current (A) Case Temperature (ºC) Figure 12: Positive output voltage vs. total load current, evenly split, showing typical current limit curves at Vin = 28V. www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 6 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures Figure 13: Turn-on transient at full rated load current (resistive load) (5 ms/div). Input voltage pre-applied. Ch 1: +Vout (2V/div); Ch 2: -Vout (2V/div); Ch 3: Enable1 input (5V/div). Figure 14: Turn-on transient at zero load current (5ms/div). Input voltage pre-applied. Ch 1: +Vout (2V/div); Ch 2: -Vout (2V/div); Ch 3: Enable1 input (5V/div). Figure 15: Turn-on transient at full rated load current (resistive load) (5ms/div). Input voltage pre-applied. Ch 1: +Vout (2V/div); Ch 2: -Vout (2V/div); Ch 3: Enable2 input (5V/div). Figure 16: Turn-on transient at full load, after application of input voltage (ENA 1 and ENA 2 logic high) (5ms/div). Ch 1: +Vout (2V/div); Ch 2: -Vout (2V/div); Ch 3: Vin (10V/div). Figure 17: Output voltage response to step-change in total load current (50%100%-50%) of total Iout (max) split 50%/50%. Load cap: 1μF ceramic cap and 10μF, 100mΩ ESR tantalum cap. Ch 1: +Vout (500mV/div); Ch 2: +Iout (10A/div); Ch 3: -Vout (500mV/div); Ch 4: -Iout (10A/div). Figure 18: Output voltage response to step-change in total load current (0%-50%0%) of total Iout (max) split 50%/50%. Load cap: 1μF ceramic cap and 10μF, 100mΩ ESR tantalum cap. Ch 1: +Vout (500mV/div); Ch 2: +Iout (10A/div); Ch 3: -Vout (500mV/div); Ch 4: -Iout (10A/div). Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 7 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures Figure 19: Output voltage response to step-change in input voltage (16V - 50V - 16V). Load cap: 10μF, 100mΩ ESR tantalum cap and 1μF ceramic cap. Ch 1: +Vout (500mV/div); Ch 2: -Vout (500mV/div); Ch 3: Vin (20V/div). Figure 20: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 21) and Output Voltage Ripple (Figure 22). Figure 21: Input terminal current ripple, ic, at full rated output current and nominal input voltage with SynQor MQ filter module (50mA/div). Bandwidth: 20MHz. See Figure 20. Figure 22: Output voltage ripple, +Vout (Ch 1) and -Vout (Ch 2), at nominal input voltage and full load current evenly split (20mV/div). Load capacitance: 1μF ceramic cap and 10μF tantalum cap. Bandwidth: 10MHz. See Figure 20. Figure 23: Rise of output voltage after the removal of a short circuit across the positive output terminals. Ch 1: +Vout (2V/div); Ch 2: -Vout (2V/div); Ch 3: +Iout (20A/div). Figure 24: SYNC OUT vs. time, driving SYNC IN of a second SynQor MQFL converter. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 8 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures Output Impedance (ohms) 0.1 0.01 16Vin 0.001 28Vin 40Vin 0.0001 100 1,000 10,000 Hz Forward Transmission (dB) 10 0 0 -10 -20 -20 -30 -40 -50 -60 -70 16Vin -80 Hz 10,000 -60 -70 0 Reverse Transmission (dB) 0 16Vin 28Vin 40Vin -50 28Vin 40Vin 1,000 Hz 10,000 100,000 Figure 28: Magnitude of incremental forward transmission of -5V output (-FT = -vout /vin) for minimum, nominal, and maximum input voltage at full rated power. 10 -20 16Vin -80 10 -10 100,000 -50 -100 100 100,000 Figure 27: Magnitude of incremental forward transmission of +5V output (+FT = +vout /vin) for minimum, nominal, and maximum input voltage at full rated power. 10,000 -90 -100 1,000 Hz -40 40Vin 100 1,000 -30 28Vin -90 100 Figure 26: Magnitude of incremental output impedance of -5V output (-Zout = -vout /-iout) for minimum, nominal, and maximum input voltage at full rated power. -10 -40 28Vin 40Vin 100,000 Figure 25: Magnitude of incremental output impedance of +5V output (+Zout = +vout /+iout) for minimum, nominal, and maximum input voltage at full rated power. -30 16Vin 0.001 0.0001 10 Reverse Transmission (dB) 0.01 Forward Transmission (dB) Output Impedance (ohms) 0.1 -10 -20 16Vin -30 28Vin 40Vin -40 -50 10 100 1,000 10,000 100,000 10 Hz Phone 1-888-567-9596 1,000 10,000 100,000 Hz Figure 29: Magnitude of incremental reverse transmission from +5V output (+RT = iin /+iout) for minimum, nominal, and maximum input voltage at full rated power. Product# MQFL-28E-05D 100 Figure 30: Magnitude of incremental reverse transmission from -5V output (-RT = iin /-iout) for minimum, nominal, and maximum input voltage at full rated power. www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 9 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Figures Input Impedance (ohms) 100 10 1 16Vin 0.1 28Vin 40Vin 0.01 10 100 1,000 Hz 10,000 100,000 Figure 31: Magnitude of incremental input impedance (Zin = vin/iin) for minimum, nominal, and maximum input voltage at full rated power with 50% / 50% split. Figure 32: High frequency conducted emissions of standalone MQFL28-05S, 5Vout module at 120W output, as measured with Method CE102. Limit line shown is the ‘Basic Curve’ for all applications with a 28V source. Figure 33: High frequency conducted emissions of MQFL-28-05S, 5Vout module at 120W output with MQME-28-P filter, as measured with Method CE102. Limit line shown is the ‘Basic Curve’ for all applications with a 28V source. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 10 MQFL-28E-05D Output: ±5.0V Current: 24A Total Application Section BASIC OPERATION AND FEATURES The MQFL DC/DC converter uses a two-stage power conversion topology. The first, or regulation, stage is a buck-converter that keeps the output voltage constant over variations in line, load, and temperature. The second, or isolation, stage uses transformers to provide the functions of input/output isolation and voltage transformation to achieve the output voltage required. In the dual output converter there are two secondary windings in the transformer of the isolation stage, one for each output. There is only one regulation stage, however, and it is used to control the positive output. The negative output therefore displays “Cross-Regulation”, meaning that its output voltage depends on how much current is drawn from each output. Both the positive and the negative outputs share a common OUTPUT RETURN pin. Both the regulation and the isolation stages switch at a fixed frequency for predictable EMI performance. The isolation stage switches at one half the frequency of the regulation stage, but due to the push-pull nature of this stage it creates a ripple at double its switching frequency. As a result, both the input and the output of the converter have a fundamental ripple frequency of about 550 kHz in the free-running mode. Rectification of the isolation stage’s output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low resistance, dissipate far less energy than would Schottky diodes. This is the primary reason why the MQFL converters have such high efficiency, particularly at low output voltages. Besides improving efficiency, the synchronous rectifiers permit operation down to zero load current. There is no longer a need for a minimum load, as is typical for converters that use diodes for rectification. The synchronous rectifiers actually permit a negative load current to flow back into the converter’s output terminals if the load is a source of short or long term energy. The MQFL converters employ a “back-drive current limit” to keep this negative output terminal current small. There is a control circuit on both the input and output sides of the MQFL converter that determines the conduction state of the power switches. These circuits communicate with each other across the isolation barrier through a magnetically coupled device. No opto-isolators are used. A separate bias supply provides power to both the input and output control circuits. Among other things, this bias supply permits the converter to operate indefinitely into a short circuit and to avoid a hiccup mode, even under a tough start-up condition. vided, as well as an input over-voltage shutdown. There is also an output current limit that is nearly constant as the load impedance decreases to a short circuit (i.e., there is not fold-back or fold-forward characteristic to the output current under this condition). When a load fault is removed, the output voltage rises exponentially to its nominal value without an overshoot. The MQFL converter’s control circuit does not implement an output over-voltage limit or an over-temperature shutdown. The following sections describe the use and operation of additional control features provided by the MQFL converter. CONTROL FEATURES ENABLE: The MQFL converter has two enable pins. Both must have a logic high level for the converter to be enabled. A logic low on either pin will inhibit the converter. The ENA1 pin (pin 4) is referenced with respect to the converter’s input return (pin 2). The ENA2 pin (pin 12) is referenced with respect to the converter’s output return (pin 8). This permits the converter to be inhibited from either the input or the output side. Regardless of which pin is used to inhibit the converter, the regulation and the isolation stages are turned off. However, when the converter is inhibited through the ENA1 pin, the bias supply is also turned off, whereas this supply remains on when the converter is inhibited through the ENA2 pin. A higher input standby current therefore results in the latter case. Both enable pins are internally pulled high so that an open connection on both pins will enable the converter. Figure A shows the equivalent circuit looking into either enable pins. It is TTL compatible. 5.6V PIN 4 (OR PIN 12) 1N4148 82K TO ENABLE CIRCUITRY ENABLE 250K 2N3904 125K PIN 2 (OR PIN 8) IN RTN Figure A: Circuit diagram shown for reference only, actual circuit components may differ from values shown for equivalent circuit. An input under-voltage lockout feature with hysteresis is proProduct# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 11 MQFL-28E-05D Output: ±5.0V Current: 24A Total Application Section SYNCHRONIZATION: The MQFL converter’s switching frequency can be synchronized to an external frequency source that is in the 500 kHz to 700 kHz range. A pulse train at the desired frequency should be applied to the SYNC IN pin (pin 6) with respect to the INPUT RETURN (pin 2). This pulse train should have a duty cycle in the 20% to 80% range. Its low value should be below 0.8V to be guaranteed to be interpreted as a logic low, and its high value should be above 2.0V to be guaranteed to be interpreted as a logic high. The transition time between the two states should be less than 300ns. If the MQFL converter is not to be synchronized, the SYNC IN pin should be left open circuit. The converter will then operate in its free-running mode at a frequency of approximately 550 kHz. If, due to a fault, the SYNC IN pin is held in either a logic low or logic high state continuously, the MQFL converter will revert to its free-running frequency. The MQFL converter also has a SYNC OUT pin (pin 5). This output can be used to drive the SYNC IN pins of as many as ten (10) other MQFL converters. The pulse train coming out of SYNC OUT has a duty cycle of 50% and a frequency that matches the switching frequency of the converter with which it is associated. This frequency is either the free-running frequency if there is no synchronization signal at the SYNC IN pin, or the synchronization frequency if there is. The SYNC OUT signal is available only when the DC input voltage is above approximately 12V and when the converter is not inhibited through the ENA1 pin. An inhibit through the ENA2 pin will not turn the SYNC OUT signal off. NOTE: An MQFL converter that has its SYNC IN pin driven by the SYNC OUT pin of a second MQFL converter will have its start of its switching cycle delayed approximately 180 degrees relative to that of the second converter. Figure B shows the equivalent circuit looking into the SYNC IN pin. Figure C shows the equivalent circuit looking into the SYNC OUT pin. 5V PIN 2 SYNC IN Since the SHARE pin is monitored with respect to the OUTPUT RETURN (pin 8) by each converter, it is important to connect all of the converters’ OUTPUT RETURN pins together through a low DC and AC impedance. When this is done correctly, the converters will deliver their appropriate fraction of the total load current to within +/- 10% at full rated load. Whether or not converters are paralleled, the voltage at the SHARE pin could be used to monitor the approximate average current delivered by the converter(s). A nominal voltage of 1.0V represents zero current and a nominal voltage of 2.2V represents the maximum rated current, with a linear relationship in between. The internal source resistance of a converter’s SHARE pin signal is 2.5 kW. During an input voltage fault or primary disable event, the SHARE pin outputs a power failure warning pulse. The SHARE pin will go to 3V for approximately 14ms as the output voltage falls. NOTE: Converters operating from separate input filters with reverse polarity protection (such as the MQME-28-T filter) with their outputs connected in parallel may exhibit hiccup operation at light loads. Consult factory for details. 5V 5K SYNC OUT FROM SYNC CIRCUITRY IN RTN OPEN COLLECTOR OUTPUT PIN 5 PIN 2 Figure C: Equivalent circuit looking into SYNC OUT pin with respect to the IN RTN (input return) pin. 5K PIN 6 CURRENT SHARE: When several MQFL converters are placed in parallel to achieve either a higher total load power or N+1 redundancy, their SHARE pins (pin 11) should be connected together. The voltage on this common SHARE node represents the average current delivered by all of the paralleled converters. Each converter monitors this average value and adjusts itself so that its output current closely matches that of the average. 5K TO SYNC CIRCUITRY IN RTN Figure B: Equivalent circuit looking into the SYNC IN pin with respect to the IN RTN (input return) pin. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 12 MQFL-28E-05D Output: ±5.0V Current: 24A Total Application Section Rup = 10 x ( Vnom – 2.5 – 2 x Vnom + 5 Vout – Vnom ) where: Vnom = the converter’s nominal output voltage, Vout = the desired output voltage (greater than Vnom), and Rup is in kiloOhms (kW). The maximum value of output voltage that can be achieved is 0.5V above the nominal output. To decrease the output voltage a resistor, Rdown, should be connected between the TRIM pin and the POSITIVE OUTPUT pin (pin 7), as shown in Figure D. The value of this resistor should be determined according to the following equation: Rdown = 10 x [ ] [ Vnom – 1 Vnom – 2.5 – 5 x 2.5 Vnom – Vout ] where: Vnom = the converter’s nominal output voltage, Vout = the desired output voltage (less than Vnom), and Rdown is in kiloOhms (kW). As the output voltage is trimmed up, it produces a greater voltage stress on the converter’s internal components and may cause the converter to fail to deliver the desired output voltage at the low end of the input voltage range at the higher end of the load current and temperature range. Please consult the factory for details. 28 Vdc + --open means on 1 +VIN 2 IN RTN 3 CASE 4 ENA 1 5 SYNC OUT 6 SYNC IN 10,000.0 1,000.0 Trim Resistance (kOhms) OUTPUT VOLTAGE TRIM: If desired, it is possible to increase the MQFL dual converter’s output voltage above its nominal value. To increase the output voltage a resistor, Rup, should be connected between the TRIM pin (pin 10) and the OUTPUT RETURN pin (pin 8), as shown in Figure D. The value of this resistor should be determined according to the following equation: 100.0 10.0 Trim Down Configuration Trim Up Configuration 1.0 0.1 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 Change in Vout (V) Figure E: Output Voltage Trim Graph INPUT UNDER-VOLTAGE LOCKOUT: The MQFL converter has an under-voltage lockout feature that ensures the converter will be off if the input voltage is too low. The threshold of input voltage at which the converter will turn on is higher that the threshold at which it will turn off. In addition, the MQFL converter will not respond to a state of the input voltage unless it has remained in that state for more than about 200µs. This hysteresis and the delay ensure proper operation when the source impedance is high or in a noisy environment. INPUT OVER-VOLTAGE SHUTDOWN: The MQFL converter also has an over-voltage feature that ensures the converter will be off if the input voltage is too high. It also has a hysteresis and time delay to ensure proper operation. SHUT DOWN: The MQFL converter will shut down in response to only four conditions: ENA1 input low, ENA2 input low, VIN input below under-voltage lockout threshold, or VIN input above over-voltage shutdown threshold. Following a shutdown event, there is a startup inhibit delay which will prevent the converter from restarting for approximately 300ms. After the 300ms delay ENA 2 12 SHARE 11 MQFL TRIM 10 -VOUT 9 OUT RTN 8 +VOUT 7 open means on + Rup Load Rdown -+ Load -Figure D: Typical connection for output voltage trimming. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 13 MQFL-28E-05D Output: ±5.0V Current: 24A Total Application Section elapses, if the enable inputs are high and the input voltage is within the operating range, the converter will restart. If the VIN input is brought down to nearly 0V and back into the operating range, there is no startup inhibit, and the output voltage will rise according to the “Turn-On Delay, Rising Vin” specification. BACK-DRIVE CURRENT LIMIT: Converters that use MOSFETs as synchronous rectifiers are capable of drawing a negative current from the load if the load is a source of short- or long-term energy. This negative current is referred to as a “back-drive current”. Conditions where back-drive current might occur include paralleled converters that do not employ current sharing, or where the current share feature does not adequately ensure sharing during the startup or shutdown transitions. It can also occur when converters having different output voltages are connected together through either explicit or parasitic diodes that, while normally off, become conductive during startup or shutdown. Finally, some loads, such as motors, can return energy to their power rail. Even a load capacitor is a source of back-drive energy for some period of time during a shutdown transient. When the converter is mounted on a metal plate, the plate will help to make the converter’s case bottom a uniform temperature. How well it does so depends on the thickness of the plate and on the thermal conductance of the interface layer (e.g. thermal grease, thermal pad, etc.) between the case and the plate. Unless this is done very well, it is important not to mistake the plate’s temperature for the maximum case temperature. It is easy for them to be as much as 5-10ºC different at full power and at high temperatures. It is suggested that a thermocouple be attached directly to the converter’s case through a small hole in the plate when investigating how hot the converter is getting. Care must also be made to ensure that there is not a large thermal resistance between the thermocouple and the case due to whatever adhesive might be used to hold the thermocouple in place. To avoid any problems that might arise due to back-drive current, the MQFL converters limit the negative current that the converter can draw from its output terminals. The threshold for this back-drive current limit is placed sufficiently below zero so that the converter may operate properly down to zero load, but its absolute value (see the Electrical Characteristics page) is small compared to the converter’s rated output current. INPUT SYSTEM INSTABILITY: This condition can occur because any DC/DC converter appears incrementally as a negative resistance load. A detailed application note titled “Input System Instability” is available on the SynQor website which provides an understanding of why this instability arises, and shows the preferred solution for correcting it. THERMAL CONSIDERATIONS: Figure 11 shows the suggested Power Derating Curves for this converter as a function of the case temperature and the maximum desired power MOSFET junction temperature. All other components within the converter are cooler than its hottest MOSFET. The Mil-HDBK-1547A component derating guideline calls for a maximum component temperature of 105ºC. Figure 11 therefore has one power derating curve that ensures this limit is maintained. It has been SynQor’s extensive experience that reliable long-term converter operation can be achieved with a maximum component temperature of 125ºC. In extreme cases, a maximum temperature of 145ºC is permissible, but not recommended for long-term operation where high reliability is required. Derating curves for these higher temperature limits are also included in Figure 11. The maximum case temperature at which the converter should be operated is 135ºC. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 14 MQFL-28E-05D Output: ±5.0V Current: 24A Total Stress Screening CONSTRUCTION AND ENVIRONMENTAL STRESS SCREENING OPTIONS Consistent with MIL-STD-883F Screening C-Grade ES-Grade from ( specified 0 °C to +70 °C ) Element Evaluation HB-Grade from from ( -45specified ( -55specified °C to +100 °C ) °C to +125 °C ) No Yes Yes Yes Yes Internal Visual * Yes Temperature Cycle Method 1010 No Constant Acceleration Method 2001 (Y1 Direction) No 500g Condition A (5000g) Burn-in Method 1015 24 Hrs @ +125 °C 96 Hrs @ +125 °C 160 Hrs @ +125 °C Final Electrical Test Method 5005 (Group A) +25 °C -45, +25, +100 °C -55, +25, +125 °C Full QorSeal Full QorSeal Full QorSeal * Yes Yes QorSeal QorSeal QorSeal Mechanical Seal, Thermal, and Coating Process External Visual 2009 Construction Process Condition B Condition C (-55 °C to +125 °C) (-65 °C to +150 °C) * Per IPC-A-610 Class 3 MilQor converters and filters are offered in three variations of environmental stress screening options. All MilQor converters use SynQor’s proprietary QorSeal® Hi-Rel assembly process that includes a Parylene-C coating of the circuit, a high performance thermal compound filler, and a nickel barrier gold plated aluminum case. Each successively higher grade has more stringent mechanical and electrical testing, as well as a longer burn-in cycle. The ES- and HB-Grades are also constructed of components that have been procured through an element evaluation process that prequalifies each new batch of devices. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 15 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Specifications MIL-STD-810F Qualification Testing MIL-STD-810F Test Fungus Method Description 508.5 Table 508.5-I 500.4 - Procedure I Storage: 70,000ft. / 2 Hr. duration 500.4 - Procedure II Operating; 70,000ft. / 2 Hr. duration; Ambient Temperature Rapid Decompression 500.4 - Procedure III Storage: 8,000ft. to 40,000ft. Acceleration 513.5 - Procedure II Operating - 15g’s Salt Fog 509.4 Storage 501.4 - Procedure I Storage: 135°C / 3 hrs 501.4 - Procedure II Operating: 100°C / 3 hrs 502.4 - Procedure I Storage: -65°C / 4 hrs 502.4 - Procedure II Operating: -55°C / 3 hrs Altitude High Temperature Low Temperature Temperature Shock 503.4 - Procedure I - C Storage: -65°C to 135°C; 12 cycles Rain 506.4 - Procedure I Wind Blown Rain Immersion 512.4 - Procedure I Non-Operating Humidity 507.4 - Procedure II Random Vibration 514.5 - Procedure I 10-2000 Hz, PSD level of 1.5 g2/Hz(54.6grms), duration = 1 hr/axis 516.5 - Procedure I 20g’s peak, 11ms, Functional Shock (Operating no load) (saw tooth) 516.5 - Procedure VI Bench Handling Shock Shock Sinusoidal vibration Sand and Dust Product# MQFL-28E-05D 514.5 - Category 14 Aggravated cycle @ 95% RH (Figure 507.5-7 aggravated temp humidity cycle, 15 cycles) Rotary wing aircraft - helicopter, 4hrs/axis, 20g’s (sine sweep from 10 500HZ) 510.4 - Procedure I Blowing Dust 510.4 - Procedure II Blowing Sand Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 16 MQFL-28E-05D Output: ±5.0V Current: 24A Total Technical Specifications First Article Testing consistent with MIL-STD-883F MIL-STD-883F Test Method Description Electrical Tests 5005 Physical Dimensions test 2016 Resistance to Solvents test 2015.13 Solderability test 2003.8 Lead Integrity test 2004.5 Salt Atmosphere test 1009.8 Adhesion of Lead Finish test 2025.4 Altitude Operation test 1001 Condition “C” ESD Sensitivity 3015.7 Class 2 Stabilization Bake test 1008.2 Condition “C” Vibration Fatigue test 2005.2 Condition “A” Random Vibration test 2026 Condition “II K” Condition “A” Sequential Test Group #1 Life Test – Steady State test 1005.8 Life Test – Intermittent Duty test 1006 Sequential Test Group #2 Temperature Cycle test 1010.8 Condition “C” Constant Acceleration test 2001.2 Condition “A” Thermal Shock test 1011.9 Condition “B” Temperature Cycle test 1010.8 Condition “C” Moisture Resistance test 1004.7 With Sub cycle Mechanical Shock test 2002.4 Condition “B” Variable Frequency Vibration test 2007.3 Condition “A” Sequential Test Group #3 Sequential Test Group #4 Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 17 MQFL-28E-05D Output: ±5.0V Current: 24A Total Mechanical Diagrams 1 2 3 4 5 6 SEE NOTE 7 +VIN IN RTN SHARE MQFL-28E-05D-X-ES CASE TRIM DC-DC ConvErtEr 28vin ±5.0vout @ 24A ENA 1 -VOUT SYNC OUT SYNC IN 12 11 10 9 8 7 ENA 2 MADE IN USA OUT RTN S/N 0000000 D/C 3205-301 CAGE 1WX10 +VOUT 0.250 [6.35] 1.50 [38.1] 0.040 [1.02] PIN 2.50 [63.50] 2.760 [70.10] 3.00 [76.2] 0.22 [5.6] 0.228 [5.79] 0.390 [9.91] SEE NOTE 7 6 +VIN ENA 2 IN RTN SHARE MQFL-28E-05D-U-ES CASE TRIM DC-DC ConvErtEr 28vin ±5.0vout @ 24A ENA 1 SYNC OUT SYNC IN 0.050 [1.27] 0.128 [3.25] 2.96 [75.2] 1 2 3 4 5 0.200 [5.08] TYP. NON-CUM. 1.260 [32.00] -VOUT MADE IN USA S/N 0000000 D/C 3211-301 CAGE 1WX10 OUT RTN +VOUT 12 11 10 9 8 7 2.50 [63.5] 2.760 [70.10] 3.00 [76.2] Case X 0.250 [6.35] 0.200 [5.08] TYP. NON-CUM. 1.50 [38.1] 1.260 [32.00] 0.040 [1.02] PIN 0.050 [1.27] 0.42 [10.7] 0.128 [3.25] 0.22 [5.6] 2.80 [71.1] 0.390 [9.91] PIN DESIGNATIONS NOTES 1) 2) 3) 4) 5) 6) 7) 8) Pins 0.040’’ (1.02mm) diameter Pin Material: Copper Alloy Finish: Gold over Nickel plating, followed by Sn/Pb solder dip All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) Weight: 2.8 oz (78.5 g) typical Workmanship: Meets or exceeds IPC-A-610 Class III Print Labeling on Top Surface per Product Label Format Drawing Pin 1 identification hole, not intended for mounting (case X and U) Baseplate flatness tolerance is 0.004” (.10mm) TIR for surface. Product# MQFL-28E-05D Case U Phone 1-888-567-9596 www.SynQor.com Pin # Function 1 2 3 4 5 6 Pin # Function Positive input Input return Case Enable 1 Sync output Sync input Doc.# 005-0005158 Rev. E 7 8 9 10 11 12 Positive output Output return Negative Output Trim Share Enable 2 06/10/15 Page 18 MQFL-28E-05D Output: ±5.0V Current: 24A Total Mechanical Diagrams 0.300 [7.62] 0.140 [3.56] 1.150 [29.21] 0.250 [6.35] TYP 1 2 3 4 5 6 +VIN ENA 2 IN RTN SHARE MQFL-28E-05D-Y-ES CASE ENA 1 -VOUT SYNC OUT SYNC IN TRIM DC-DC ConvErtEr 28vin ±5.0vout @ 24A MADE IN USA S/N 0000000 D/C 3211-301 CAGE 1WX10 OUT RTN +VOUT 1.750 [44.45] 12 2.000 11 [50.80] 10 1.50 9 [38.1] 8 1.750 7 [44.45] 0.250 [6.35] 0.200 [5.08] TYP. NON-CUM. 0.040 [1.02] PIN 0.050 [1.27] 0.22 [5.6] 0.375 [9.52] 2.50 [63.5] 2.96 [75.2] 0.228 [5.79] 0.390 [9.91] Case Y Case Z (variant of Y) 0.250 [6.35] Case W (variant of Y) 0.250 [6.35] 0.200 [5.08] TYP. NON-CUM. 0.200 [5.08] TYP. NON-CUM. 0.040 [1.02] PIN 0.040 [1.02] PIN 0.22 [5.6] 0.050 [1.27] 0.42 [10.7] 0.36 [9.14] 0.050 [1.27] 0.22 [5.6] 2.80 [71.1] 0.525 [13.33] 0.390 [9.91] 0.525 [13.33] 0.390 [9.91] 2.80 [71.1] PIN DESIGNATIONS NOTES 1) 2) 3) 4) 5) 6) 7) 8) Pins 0.040’’ (1.02mm) diameter Pin Material: Copper Alloy Finish: Gold over Nickel plating, followed by Sn/Pb solder dip All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) Weight: 2.8 oz (78.5 g) typical Workmanship: Meets or exceeds IPC-A-610 Class III Print Labeling on Top Surface per Product Label Format Drawing Pin 1 identification hole, not intended for mounting (case X and U) Baseplate flatness tolerance is 0.004” (.10mm) TIR for surface. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Pin # Function 1 2 3 4 5 6 Pin # Function Positive input Input return Case Enable 1 Sync output Sync input Doc.# 005-0005158 Rev. E 7 8 9 10 11 12 Positive output Output return Negative Output Trim Share Enable 2 06/10/15 Page 19 MQFL-28E-05D Output: ±5.0V Current: 24A Total Ordering Information MilQor Converter FAMILY MATRIX The tables below show the array of MilQor converters available. When ordering SynQor converters, please ensure that you use the complete part number according to the table in the last page. Contact the factory for other requirements. Single Output Full Size MQFL-28 16-40Vin Cont. 16-50Vin 1s Trans.* Dual Output † 1.5V (1R5S) 1.8V (1R8S) 2.5V (2R5S) 3.3V (3R3S) 5V (05S) 6V (06S) 7.5V (7R5S) 9V (09S) 12V (12S) 15V (15S) 28V (28S) 5V (05D) 12V (12D) 15V (15D) 40A 40A 40A 30A 24A 20A 16A 13A 10A 8A 4A 24A Total 10A Total 8A Total 40A 40A 40A 30A 24A 20A 16A 13A 10A 8A 4A 24A Total 10A Total 8A Total 40A 40A 40A 30A 20A 17A 13A 11A 8A 6.5A 3.3A 40A 40A 40A 30A 20A 17A 13A 11A 8A 6.5A 3.3A 40A 40A 40A 30A 24A 20A 16A 13A 10A 8A 4A 24A Total 10A Total 8A Total 40A 40A 30A 22A 15A 12A 10A 8A 6A 5A 2.7A 15A Total 6A Total 5A Total 1.5V (1R5S) 1.8V (1R8S) 2.5V (2R5S) 3.3V (3R3S) 5V (05S) 6V (06S) 7.5V (7R5S) 9V (09S) 12V (12S) 15V (15S) 28V (28S) 5V (05D) 12V (12D) 15V (15D) 20A 20A 20A 15A 10A 8A 6.6A 5.5A 4A 3.3A 1.8A 10A Total 4A Total 3.3A Total 20A 20A 20A 15A 10A 8A 6.6A 5.5A 4A 3.3A 1.8A 10A Total 4A Total 3.3A Total 10A 10A 10A 7.5A 5A 4A 3.3A 2.75A 2A 1.65A 0.9A 5A Total 2A Total 1.65A Total 10A 10A 10A 7.5A 5A 4A 3.3A 2.75A 2A 1.65A 0.9A 5A Total 2A Total 1.65A Total Absolute Max Vin = 60V MQFL-28E 16-70Vin Cont. 16-80Vin 1s Trans.* Absolute Max Vin =100V MQFL-28V 16-40Vin Cont. 5.5-50Vin 1s Trans.* Absolute Max Vin = 60V MQFL-28VE 16-70Vin Cont. 5.5-80Vin 1s Trans.* Absolute Max Vin = 100V MQFL-270 155-400Vin Cont. 155-475Vin 1s Trans.* Absolute Max Vin = 550V MQFL-270L 65-350Vin Cont. 65-475Vin 1s Trans.* Absolute Max Vin = 550V Single Output Half Size MQHL-28 16-40Vin Cont. 16-50Vin 1s Trans.* Dual Output † Absolute Max Vin = 60V MQHL-28E 16-70Vin Cont. 16-80Vin 1s Trans.* Absolute Max Vin =100V MQHR-28 16-40Vin Cont. 16-50Vin 1s Trans.* Absolute Max Vin = 60V MQHR-28E 16-70Vin Cont. 16-80Vin 1s Trans.* Absolute Max Vin = 100V Check with factory for availability. †80% of total output current available on any one output. *Converters may be operated at the highest transient input voltage, but some component electrical and thermal stresses would be beyond MILHDBK-1547A guidelines. Product# MQFL-28E-05D Phone 1-888-567-9596 www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 20 MQFL-28E-05D Output: ±5.0V Current: 24A Total Ordering Information PART NUMBERING SYSTEM The part numbering system for SynQor’s MilQor DC-DC converters follows the format shown in the table below. Not all combinations make valid part numbers, please contact SynQor for availability. See the Product Summary web page for more options. Example: Input Voltage Range Model Name 28 28E 28V 28VE MQFL MQHL MQHR 270 270L MQFL-28E-05D-Y-ES Output Voltage(s) Single Output Dual Output 1R5S 1R8S 2R5S 3R3S 05S 06S 7R5S 09S 12S 15S 28S 05D 12D 15D Package Outline/ Pin Configuration Screening Grade U X Y W Z C ES HB APPLICATION NOTES A variety of application notes and technical white papers can be downloaded in pdf format from the SynQor website. Contact SynQor for further information and to order: Phone: Toll Free: Fax: E-mail: Web: Address: Product# MQFL-28E-05D 978-849-0600 1-888-567-9596 978-849-0602 [email protected] www.synqor.com 155 Swanson Road Boxborough, MA 01719 USA Phone 1-888-567-9596 PATENTS SynQor holds numerous U.S. patents, one or more of which apply to most of its power converter products. Any that apply to the product(s) listed in this document are identified by markings on the product(s) or on internal components of the product(s) in accordance with U.S. patent laws. SynQor’s patents include the following: 5,999,417 6,222,742 6,545,890 6,594,159 6,731,520 6,894,468 6,896,526 6,927,987 7,050,309 7,072,190 7,085,146 7,119,524 7,269,034 7,272,021 7,272,023 7,558,083 7,564,702 7,765,687 7,787,261 8,023,290 8,149,597 8,493,751 8,644,027 Warranty SynQor offers a two (2) year limited warranty. Complete warranty information is listed on our website or is available upon request from SynQor. www.SynQor.com Doc.# 005-0005158 Rev. E 06/10/15 Page 21