Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Features • Parallel up to 3 converters—maximum recommended power is 70% of the total available power. • Operating temperature -55°C to +125°C • Qualified to MIL-PRF-38534 Class H • Input voltage range 16 to 40 volts • Transient protection up to 80 volts for 50 ms -- Converter will shut down at an input voltage above approximately 45 volts • Fully isolated, magnetic feedback • Fixed high switching frequency • Remote sense and output trim on single output models Models Output Voltage (V) • Primary and secondary inhibit function • Synchronization input and output • Indefinite short circuit protection • High power density with up to 85% efficiency SINGLE DUAL 3.3 ±5 5 ±12 12 ±15 15 28 description The Interpoint® MFL Series™ 28 volt dc-dc converters are rated up to 65 watts output power over a -55°C to +125°C temperature range with a 28 V nominal input. On dual output models, up to 70% of the rated output power can be drawn from either the positive or negative outputs. The welded, hermetically sealed package is 3.005 x 1.505 x 0.400 inches. Screening MFL converters are offered with standard screening, “ES” or fully compliant to MIL-PRF-38534 Class H screening. See Table 9 on page 13 and Table 10 on page 14 for more information. Design Features The MFL Series converters are switching regulators that use a quasi-square wave, single ended forward converter design with a constant switching frequency of 600 kHz. Isolation between input and output circuits is provided with a transformer in the forward path and wide bandwidth magnetic coupling in the feedback control loop. The MFL Series uses a unique dual loop feedback technique that controls output current with an inner feedback loop and output voltage with a cascaded voltage mode feedback loop. Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Road NE, Redmond, WA 98052 +1.425.882.3100 • [email protected] www.craneae.com/interpoint The additional secondary current mode feedback loop improves transient response in a manner similar to primary current mode control and allows for ease of paralleling. Tight load regulation is achieved through a wide-bandwidth magnetic feedback circuit. Inhibit The MFL Series converters have two inhibit terminals (INH1 and INH2) that can be used to disable power conversion, resulting in a very low quiescent input current. See Table 5 on page 6 for specifications. Sync Converters may be synced to an external clock (525 to 675 kHz) or to one another by using the sync in or out pins. See Table 5 on page 6 for specifications. Page 1 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Sense and Trim Single output models provide sense to maintain voltage at the load. The converters output voltage can also be trimmed up. See Figure 1. Current Sharing and Parallel Operation For increased power parallel up to 3 converters. The maximum recommended power is 70% of the total available power. Multiple MFL converters may be used in parallel to drive a common load. Only single output models with SENSE and SNS RTN can be used in the share mode. In this mode of operation the load current is shared by two or three MFL converters. In current sharing mode, one MFL converter is designated as a master. The SLAVE pin (pin 11) of the master is left unconnected and the MSTR/INH2 pin (pin 12) of the master is connected to the SLAVE pin (pin 11) of the slave units. 28V 1 + Positive Input 2 – Input Common 3 TRI 4 Inhibit INH1 5 A second slave unit may be placed in parallel with a master and slave; this requires the TRI pin (pin 3) of the master unit to be connected to the SNS RTN pins (pin 9), per Figure 2 on page 3. In current sharing mode, the converters function as a current source. For this reason it is important that their outputs be connected to the common ground at all times to prevent an excessively high voltage at their outputs. MSTR/INH2 12 Slave 11 Pos. Sense 10 9 Sense Return Sync Out 6 Sync In The units designated as slaves have the MSTR/INH2 pin (pin 12) connected to the SNS RTN pin (pin 9) of the master unit. Figure 2 on page 3 shows the typical setup for two or three units in parallel. Sync In Output Common Positive Output 8 – + RL 7 REMOTE SENSE CONNECTION 28V 1 + Positive Input 2 – Input Common 3 TRI 4 Inhibit INH1 5 Sync Out 6 Sync In Sync In MSTR/INH2 12 11 Slave 10 Pos. Sense 9 Sense Return 8 Output Common 7 Positive Output RA OUTPUT VOLTAGE ADJUST CONNECTION VOUT Increase Volts RA (Ω) 3.3 V 5V 12 V 15 V 0.1 66 77 27 21 0.2 131 153 55 43 0.3 196 230 82 64 0.4 262 307 109 86 0.5 349 396 139 109 Notes 1. When using remote sense for voltage compensation or when using remote sense for trim, the output will drift over temperature. Contact Applications Engineering for more information [email protected]. 2. Do not exceed the maximum rated power. Figure 1: Sense Connections and Trim Table – Single Output Models www.craneae.com/interpoint – + RL Page 2 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt 28V Inhibit Sync In + – 1 2 3 4 5 6 MSTR/INH2 12 Slave 11 Positive Input Input Common TRI INH1 Pos. Sense MASTER Sync Out Sense Return Output Common Sync In Positive Output 10 9 8 7 CONNECT TRI ONLY WHEN 2 SLAVES ARE USED 1 2 3 4 5 6 1 2 3 4 5 6 MSTR/INH2 12 Slave 11 Positive Input Input Common TRI INH1 SLAVE 1 Sync Out Pos. Sense 10 Sense Return 9 Output Common 8 Sync In Positive Output Positive Input Input Common TRI INH1 Sync Out Sync In – + RL 7 MSTR/INH2 12 Slave 11 Pos. Sense 10 Sense Return 9 Output Common 8 SLAVE 2 Positive Output 7 Notes 1. No one converter may carry more than its maximum rated current. 2. Individual converter operation, load and layout may affect the actual current shared. Contact Applications Engineering for more information at [email protected]. 3. When paralleling SMFLs a diode is required at the input of each inhibit pin as SMFLs do not have an internal diode on the inhibit pin. Figure 2: Parallel Connections – Single Output Models www.craneae.com/interpoint Page 3 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Pin Out Pins not in Use Pin Single Output MFL2828S only Dual Output TRI Leave unconnected 1 Positive Input Positive Input Positive Input Inhibit 1 (INH1) Leave unconnected 2 Input Common Input Common Input Common Sync Out Leave unconnected 3 Triple (TRI) Triple (TRI) Triple (TRI) Sync In Connect to Input Common 4 Inhibit 1 (INH1) Inhibit 1 (INH1) Inhibit 1 (INH1) Sense Return Connect to Output Common 5 Sync Out Sync Out Sync Out Positive Sense Connect to Positive Output 6 Sync In Sync In Sync In Slave Leave unconnected 7 Positive Output Positive Output Positive Output Leave unconnected 8 Output Common No connection Output Common Master/Inhibit 2 (MSTR/INH2) 9 Sense Return Output Common Negative Output 10 Positive Sense No connection No connection 11 Slave Slave Slave 12 Master/Inhibit 2 (MSTR/INH2) Master/Inhibit 2 (MSTR/INH2) Master/Inhibit 2 (MSTR/INH2) Table 2: Pins not in Use Table 1: Pin Out Angled corner indicates pin one. 1 12 2 11 3 4 TOP VIEW MFL (Pin side, marked side) 9 5 8 6 7 See Figure 18 on page 12 for dimensions Figure 3: Pin Out www.craneae.com/interpoint 10 Page 4 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Model numbering key Base Model Input Voltage MFL smd numbers Standard Microcircuit Drawing (SMD) 28 05 S / 883 Output Voltage Number of Outputs (S = single, D = dual) Screening (Standard screening has no designator in this position.) Figure 4: Model Numbering Key MFL Series Similar Part 5962-0621301HXC MFL283R3S/883 5962-9316301hxc MFL2805S/883 5962-9316201hxc MFL2812S/883 5962-9316101hxc MFL2815S/883 5962-9319101hxc MFL2805D/883 5962-9319201hxc MFL2812D/883 5962-9319301hxc MFL2815D/883 The SMD number shown is for Class H screening. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from www.landandmaritime.dla.mil/programs/smcr Table 3: SMD Number Cross Reference To model Number Options determine the model number enter one option from each category in the form below. Category Base Model and Input Voltage Options MFL28 Fill in for Model # MFL28 Output Voltage 1 Number of Outputs 2 Screening 3 3R3, 05, 12, 15, 28 S (standard, leave blank) 05, 12, 15 D ES 883 / Notes 1. Output Voltage: An R indicates a decimal point. 3R3 is 3.3 volts out. The value of 3R3 is only available in single output models. 2. Number of Outputs: S is a single output and D is a dual output. 3. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see Table 9 on page 13 and Table 10 on page 14. MFL2828S is not available on an SMD. Table 4: Model Number Options www.craneae.com/interpoint Page 5 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table 5: Operating Conditions, All Models, 25°C case, 28 Vin, 100% load, unless otherwise specified. All Models PARAMETER CONDITIONS LEAD SOLDERING TEMPERATURE STORAGE TEMPERATURE 1 10 seconds max. 1 CASE OPERATING FULL POWER TEMPERATURE ABSOLUTE DERATING OUTPUT POWER/CURRENT 1 LINEARLY ISOLATION: input to output or any pin to case INPUT TO OUTPUT CAPACITANCE 1 TYP MAX UNITS — — 300 °C -65 — +150 °C -55 — +125 -55 — +135 °C From 100% at 125°C to 0% at 135°C @ 500 VDC at 25°C 1 limit 2 MIN — — Megohms — 150 — pF — 125 — % — 50 — dB Free Run, -55°C TO +125°C 525 600 675 kHz SYNCHRONIZATION IN INPUT FREQUENCY 525 — 675 kHz -55°C TO +125°C DUTY CYCLE 1 40 — 60 % ACTIVE LOW — — 0.8 4.5 — 5.0 current AUDIO REJECTION % of Full Load 100 1 CONVERSION FREQUENCY, Free Run ACTIVE HIGH 1 REFERENCED TO INPUT COMMON IF NOT USED SYNCHRONIZATION OUT V CONNECT TO INPUT COMMON REFERENCED TO INPUT COMMON IF NOT USED Leave Unconnected INHIBIT 1 ACTIVE LOW (OUTPUT DISABLED) inhibit pin pulled low — — 0.8 V Do not apply a voltage to the inhibit pin. 3 INHIBIT PIN SOURCE CURRENT 1 — — 10 mA REFERENCED TO INHIBIT 1 ACTIVE HIGH (OUTPUT ENABLED) INPUT COMMON OPEN COLLECTOR OR UNCONNECTED INHIBIT PIN CONDITION 1 Do not apply a voltage to the inhibit pin. 3 OPEN INHIBIT PIN VOLTAGE 9 — 12 V INHIBIT 2 ACTIVE LOW (OUTPUT DISABLED) inhibit pin pulled low — — 0.5 V Do not apply a voltage to the inhibit pin. 3 INHIBIT PIN SOURCE CURRENT 1 — — 5 mA REFERENCED TO INHIBIT 2 ACTIVE HIGH (OUTPUT ENABLED) Do not apply a voltage to the inhibit pin. 3 OUTPUT COMMON OPEN COLLECTOR OR UNCONNECTED INHIBIT PIN CONDITION OPEN INHIBIT PIN VOLTAGE 1 — — 9 V For mean time between failures (MTBF) contact Applications Engineering [email protected] +1 425-882-3100 option 7 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Dual outputs: The over-current limit will trigger when the sum of the currents from both outputs reaches 125% (typical value) of the maximum rated “total” current of both outputs. 3. An external inhibit interface should be used to pull the inhibits low or leave them floating. The inhibit pins can be left unconnected if not used. www.craneae.com/interpoint Page 6 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table 6: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. single output models PARAMETER MFL283R3S CONDITIONS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE MFL2805S MFL2812S MAX MIN TYP MAX MIN TYP MAX 3.30 3.39 4.87 5.00 5.13 11.76 12.00 12.24 V 0 — 12.12 0 — 10 0 — 5 A 0 — 40 0 — 50 0 — 60 W TC = 25°C — 10 35 — 15 35 — 30 75 — 10 50 — 30 50 — 45 100 VIN = 16 TO 40 V — 0 20 — 0 20 — 0 20 mV — — 40 — — 20 — — 20 mV 16 28 40 16 28 40 16 28 40 V V LOAD REGULATION NO LOAD TO FULL INPUT VOLTAGE CONTINUOUS 1, 2 NO LOAD TO FULL TRANSIENT 50 ms — — 80 — — 80 — — 80 INPUT CURRENT NO LOAD — 70 100 — 70 120 — 50 100 INHIBITED–INH1 — 9 14 — 9 14 — 9 14 INHIBITED–INH2 — 35 70 — 35 70 — 35 70 10 kHz - 10 MHz — 15 50 — 15 50 — 15 50 — 83 86 — INPUT RIPPLE CURRENT EFFICIENCY TC = 25°C LOAD FAULT STEP LOAD RESPONSE 3 UNITS 3.21 TC = -55°C TO +125°C LINE REGULATION TYP VIN = 16 to 40 V VIN = 16 to 40 V 10 kHz - 2 MHz MIN mV p-p mA mA p-p 73 76 — 77 80 TC = -55°C TO +125°C 71 — — 75 _ POWER DISSIPATION — 12.5 16 — 12.5 18 — 10 16 W RECOVERY 1 — 1.5 6 — 1.5 4 — 1.5 4 ms TRANSIENT — 200 300 — 250 350 — 450 600 mV pk 1 81 % 50% - 100% - 50% RECOVERY — 1.5 3.0 — 1.5 3.0 — 1.5 3.0 ms STEP LINE RESPONSE 1, 3 TRANSIENT — 250 300 — 250 300 — 250 400 mV pk 16 - 40 - 16 RECOVERY — 200 600 — 200 300 — 200 300 µs START-UP 4 DELAY — 3.5 6 — 3.5 6 — 3.5 6 ms OVERSHOOT 1 — 0 25 — 0 25 — 0 25 mV pk TC = 25°C — — 1000 — — 1000 — — 1000 µF CAPACITIVE LOAD 1, 5 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Converter will shut down above approximately 45 volts input but will be undamaged and will restart when voltage drops into normal range. 3. Recovery time is measured from application of the transient to the point at which VOUT is within 1% of final value. www.craneae.com/interpoint 4. Tested on release from inhibit. 5. No affect on dc performance. Page 7 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table 7: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. single output models PARAMETER CONDITIONS OUTPUT VOLTAGE OUTPUT POWER UNITS MIN TYP MAX MIN TYP MAX 14.55 15.00 15.45 27.16 28.00 28.84 V 0 — 4.33 0 — 2.32 A W VIN = 16 to 40 V OUTPUT CURRENT MFL2828S 2 MFL2815S 0 — 65 0 — 65 TC = 25°C VIN = 16 to 40 V — 30 85 — 100 200 — 45 110 — — 275 — 0 20 — 20 60 mV LOAD REGULATION VIN = 16 TO 40 V NO LOAD TO FULL — 0 20 75 mV CONTINUOUS 16 28 40 — 16 2 20 INPUT VOLTAGE 2 28 40 V V OUTPUT RIPPLE 10 kHz - 2 MHz TC = -55°C TO +125°C LINE REGULATION 2 1, 3 NO LOAD TO FULL TRANSIENT 50 ms — — 80 — — 80 INPUT CURRENT NO LOAD — 50 100 — 60 100 INHIBITED–INH1 — 9 14 — 9 14 INHIBITED–INH2 — 35 70 — 35 70 mV p-p mA INPUT RIPPLE CURRENT 10 kHz - 10 MHz — 15 50 — 20 50 EFFICIENCY TC = 25°C 84 87 — 83 86 — 82 — — 81 — — — 10 16 — 7 14 W — 1.5 4 — 1.0 4 ms TRANSIENT — 500 600 — 800 1400 mV pk RECOVERY 1 — 1.5 3.0 — 1.5 3.0 ms TRANSIENT — 250 500 — 250 800 mV pk RECOVERY — 200 300 — 200 400 µs DELAY — 3.5 6 — 3.5 6 ms OVERSHOOT 1 — 0 50 — 0 100 mV pk TC = 25°C — — 1000 — — 1000 µF TC = -55°C TO +125°C LOAD FAULT POWER DISSIPATION RECOVERY STEP LOAD RESPONSE 4 50% - 100% - 50% STEP LINE RESPONSE 16 - 40 -16 V START-UP 2, 5 CAPACITIVE LOAD 1, 6 1, 2, 4 1 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. MFL2828S will operate at 16 volts input but requires 19 volts input to start. 3. Converter will shut down above approximately 45 volts input but will be undamaged and will restart when voltage drops into normal range. www.craneae.com/interpoint mA p-p % 4. Recovery time is measured from application of the transient to the point at which Vout is within 1% of final value. 5. Tested on release from inhibit. 6. No affect on dc performance. Page 8 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table 8: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. DUAL output models PARAMETER MFL2805D MFL2812D MFL2815D CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX + VOUT 4.85 5.00 5.15 11.64 12.00 12.36 14.55 15.00 15.45 4.82 5.00 5.18 11.58 12.00 12.42 14.47 15.00 15.53 EITHER OUTPUT 0 ±5 7 0 ±2.5 3.5 0 ±2.16 3.03 VIN = 16 to 40 V TOTAL OUTPUT 0 — 10 0 — 5 0 — 4.34 OUTPUT POWER 2 EITHER OUTPUT 0 ±25 35 0 ±30 42 0 ±32.5 45.5 VIN = 16 to 40 V TOTAL OUTPUT — — 50 — — 60 — — 65 TC = 25°C — — 50 — — 80 — — 100 — 50 100 — 50 120 — 50 150 + VOUT + VOUT OUTPUT VOLTAGE OUTPUT CURRENT 2 OUTPUT RIPPLE 10 kHz - 2 MHz ± VOUT LINE REGULATION - VOUT TC = -55°C TO +125°C UNITS V A W mV p-p — 0 50 — 0 50 — 0 50 VIN = 16 TO 40 V - VOUT — 25 100 — 25 100 — 25 100 — 0 50 — 10 50 — 10 50 NO LOAD TO FULL - VOUT — 25 100 — 25 120 — 50 150 SEE NOTE 3 — 5 8 — 2 4 — 2 4 SEE NOTE 4 — 3 7 — 2 4 — 2 4 16 28 40 16 28 40 16 28 40 V V LOAD REGULATION CROSS REGULATION TC = 25°C INPUT VOLTAGE CONTINUOUS 1, 5 NO LOAD TO FULL TRANSIENT 50 ms — — 80 — — 80 — — 80 INPUT CURRENT NO LOAD — 50 120 – 50 100 — 50 100 INHIBITED–INH1 — 9 14 — 9 14 — 9 14 INHIBITED–INH2 — 35 70 — 35 70 — 35 70 INPUT RIPPLE CURRENT 10 kHz - 10 MHz — 15 50 — 15 50 — 15 50 EFFICIENCY TC = 25°C mV mV % mA mA p-p 77 80 — 83 86 — 84 87 — TC = -55°C TO +125°C 75 — — 81 — — 82 — — POWER DISSIPATION — 12.5 18 — 10 16 — 10 16 W RECOVERY 1 — 1.5 4 — 1.5 4 — 1.5 4.0 ms STEP LOAD RESPONSE 6 TRANSIENT — 250 350 — 450 600 — 500 600 mV pk 50% - 100% - 50% ± VOUT STEP LINE RESPONSE 1, 6 RECOVERY 1 — 1.5 3.0 — 1.5 3.0 — 1.5 3.0 ms TRANSIENT — 250 300 — 250 400 — 250 500 mV pk 16 - 40 -16 V RECOVERY — 200 300 — 200 300 — 200 300 µs DELAY — 3.5 6 — 3.5 6 — 3.5 6 ms OVERSHOOT 1 — 0 25 — 0 50 — 0 50 mV pk TC = 25°C — — 500 — — 500 — — 500 µF BALANCED LOAD LOAD FAULT START-UP 7 ± VOUT CAPACITIVE LOAD 1, 8, 9 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2.Up to 70% of the total output power is available from either output providing the opposite output is simultaneously carrying 30% of the total power. 3. Effect on negative Vout from 50%/50% loads to 70%/30% or 30%/70% loads. 4. Effect on negative Vout from 50%/50% loads to 50% then 10% load on negative Vout. www.craneae.com/interpoint % 5. Converter will shut down above approximately 45 volts input but will be undamaged and will restart when voltage drops into normal range. 6. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 7. Tested on release from inhibit. 8. No affect on dc performance. 9. Applies to each output. Page 9 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless otherwise These are examples for reference only and are not guaranteed specifications. 16 40. 60. 80. 100. 0.1 1 10 100 Frequency (kHz) MFL Series Audio Rejection 90 MFL2815S & 15D 15 14 13 MFL2805S & 5D 12 40 50 80 75 90 90 16 V 40 V 70 65 28 V 75 40 V 70 60 10 60 Output Power (Watts) MFL2812S & MFL2812D Efficiency 20 1 ms/div MFL2805S Step Load Response Figure 11 www.craneae.com/interpoint 50 28 V 80 40 V 75 70 60 60 65 0 10 MFL2828S Efficiency 100 mV/div. Figure 9 VOUT VIN 50 µs/div 16 to 40 V MFL2805S Step Line Response Figure 12 Page 10 of 14 MFL Rev AD - 2016.02.19 20 30 40 50 60 70 Output Power (Watts) MFL2815S & MFL2815D Efficiency 20 V/div. 100 mV/div. 50% to 100% 40 Output Power (Watts) Figure 8 100% to 50% 30 Figure 10 20 V/div. 50 1 V/div. 40 50 65 65 30 40 16 V 85 80 30 Figure 7 Efficiency (%) 28 V 20 20 Output (Watts) MFL2805S & MFL2805D Efficiency 85 75 40 V 70 Figure 6 16 V 80 28 V 60 10 60 65 Low Line Dropout Efficiency (%) Efficiency (%) 30 Output Power (Watts) Performance not guaranteed below 16 VIN 85 60 10 20 16 V 65 MFL2812S & 12D 11 10 Figure 5 90 85 Efficiency (%) 20. Input Voltage (Volts) Attenuation (dB) 0. specified. VIN VOUT 1 ms/div No Load MFL2805S Turn On Response Figure 13 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt MFL2805D 4 2 MFL2812D 0 MFL2815D –2 –4 100% to 50% –6 –8 30 40 50 60 70 Positive Output Load (% of Total Load) -VOUT with shift in load balance Cross Regulation 20 V/div. Figure 14 5 V/div. –POUT = 32.5W VIN 1 ms/div MFL2815D Step Load Response Figure 15 +VOUT –VOUT 1 ms/div No Load MFL2815D Turn On Response Figure 17 www.craneae.com/interpoint Page 11 of 14 MFL Rev AD - 2016.02.19 100 mV/div. 50% to 100% 6 200 mV/div. –VOUT Voltage Change (%) 8 20 V/div. Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless otherwise These are examples for reference only and are not guaranteed specifications. specified. VIN +VOUT –VOUT 50 µs/div 16 to 40 V MFL2815D Step Line Response Figure 16 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt TOP VIEW CASE U Flanged case, short leads Case “U” does not require a designator in the Case Option position of the model number. 1.505 (38.23) max. 2 11 0.850 (21.59) 3 10 0.650 (16.51) 4 9 0.450 (11.43) 5 8 0.250 (6.35) 6 7 2.750 (69.85) 0.000 0.120 (3.05) 0.000 Weight: 86 grams maximum Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold ceramic seal Gold plating of 50 - 150 microinches is included in pin diameter Seal Hole: 0.120 ±0.002 (3.05 ±0.05) Case U, Rev K, 2014.03.03 Please refer to the numerical dimensions for accuracy. Figure 18: Case U www.craneae.com/interpoint Page 12 of 14 MFL Rev AD - 2016.02.19 0.220 (5.59 1.050 (26.67) 0.040 dia (1.02) 12 0.050 (1.27) 0.000 1 0.120 (3.05) 0.250 ±0.010 (6.35 ±0.3) 1.250 (31.75) 2.880 (73.15) 3.005 (76.33) max. 1.380 (35.05) Seam Seal 0.128 dia (3.25). 0.23 (5.8) Pin Length 0.400 (10.16) max. Angled corner indicates pin one. Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table is for reference only. See individual Series' datasheets for specific screening. eLeMent eVaLuation 1 high reLiabiLity /883 (cLaSS h) QML cLaSS h /883 M/S 2 P3 Element Electrical n n Visual n n Internal Visual n Final Electrical n n Wire Bond Evaluation n n coMPonent-LeVeL teSt PerForMed Notes 1. Element evaluation does not apply to standard and /ES product. 2. M/S = active components (microcircuit and semiconductor die). 3. P = Passive components, Class H element evaluation. Not applicable to standard and /ES element evaluation. table 8: element eValuation high reliability Dc-Dc conVerterS anD emi FilterS /883 (claSS h) Table 9: Element Evaluation www.craneae.com/interpoint Page 13 of 14 MFL Rev AD - 2016.02.19 Crane Aerospace & Electronics Power Solutions MFL Single and Dual DC-DC Converters 28 Volt Input - 65 Watt Table is for reference only. See individual Series' datasheets for specific screening. enVironMentaL Screening high reLiabiLity Standard, /eS and /883 (cLaSS h) non-QML 1 teSt PerForMed pre-cap inspection, Method 2017, 2032 QML 2 Standard /eS cLaSS h /883 n n n temperature cycle (10 times) Method 1010, Cond. C, -65°C to +150°C, ambient n Method 1010, Cond. B, -55°C to +125°C, ambient n constant acceleration Method 2001, 3000 g n Method 2001, 500 g n n3 pind, test Method 2020, cond. a burn-in Method 1015, +125°c case, typical 4 96 hours n 160 hours n Final electrical test, MiL-prF-38534, group a, Subgroups 1 through 6, -55°C, +25°C, +125°C case Subgroups 1 and 4, +25°C case n n n Hermeticity test gross Leak, Cond. C1, fluorocarbon Fine Leak, Cond. a2, helium gross Leak, dip n n n n n n n Final visual inspection, Method 2009 n Test methods are referenced to MIL-STd-883 as determined by MIL-PRF-38534. Notes 1. Standard and ES are non-QML products and may not meet all of the requirements of MIL-PRF-38534. 2. all processes are QML qualified and performed by certified operators. 3. Not required by dLa but performed to assure product quality. 4. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. Table 10: Environmental Screening table 9: enVironmental Screening high reliability Dc-Dc conVerterS anD emi FilterS StanDarD, /eS anD /883 (claSS h) MFL Single and Dual, MFL Rev AD - 2016.02.19. 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 is a registered trademark of Crane Co. MFL Series is a trademark of Crane Electronics, Inc. Copyright © 1999 - 2016 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint Page 14 of 14