Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT FEATURES • • • • • • • • • • • –55° to +125°C operation 16 to 40 VDC input (16 to 48 VDC triple) Fully isolated Optocoupler feedback Fixed frequency 550 kHz typical - 450 kHz triple models Topology - Single and dual: Single Ended Forward - Triple: Current Mode Flyback Transient protection - Single and dual: 50 V/50 ms - Triple: 80 V/120 ms Inhibit and sync functions Indefinite short circuit protection Undervoltage lockout Up to 84% efficiency, 28 W/in3 - Up to 76% efficiency triple models MODELS VDC OUTPUT SINGLE DUAL TRIPLE 3.3 ±5 +5 & ±12 5 ±12 +5 & ±15 5.2 ±15 12 15 28 MHF+ SERIES™ SINGLE & DUAL DC/DC CONVERTERS The MHF+ Single and Dual Series™ of high frequency DC/DC converters offers a wide input voltage range of 16 to 40 volts and up to 15 watts of output power. The units are capable of withstanding short term transients up to 50 volts. The package is a hermetically sealed, welded metal case. Flanged and non-flanged models are available. The MHF+ Series offers a new standard of performance for small size and high power density. At just 0.33 inch high and a total footprint of 1.7 in2, this low profile package offers a total power density of up to 28 watts per cubic inch. LOW NOISE, HIGH AUDIO REJECTION CONVERTER DESIGN The MHF+ converters are switching regulators that use a quasisquare wave, single-ended forward converter design with a constant switching frequency of 550 kHz. Isolation between input and output circuits is provided with a transformer in the forward path and a temperature compensated optical link in the feedback control loop. For the MHF+ dual output models, good cross regulation is maintained by tightly coupled output magnetics. Up to 90% of the total output power (80% on 2805D) is available from either output, providing the opposite output is simultaneously carrying 10% of the total output power (20% on 2805D models). Predictable current limit is accomplished by directly monitoring the output load current and providing a constant current output above the overload point. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.craneae.com HIGHER POWER DENSITY The MHF+ converters’ feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. Typical output voltage response for a 50% to 100% step load transient is as low as 1.3% with a 150 msec recovery time. Input ripple current is typically 35 mA p-p with output ripple voltage typically 30 mV p-p . INHIBIT FUNCTION MHF+ converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when a TTL compatible low (≤0.8 – output disabled) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open-collector gate. The open circuit output voltage associated with the inhibit pin is 8.5 to 12 V. In the inhibit mode, a maximum of 4 mA must be sunk from the inhibit pin. Page 1 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT SYNCHRONIZATION SOFT START FEATURE A synchronization feature is included with the MHF+ Series that allows the user to match the switching frequency of the converter to the frequency of the system clock. An external synchronization feature is included that allows the user to adjust the nominally 550 kHz operating frequency to any frequency within the range of 500 kHz to 600 kHz. This is initiated by applying a TTL compatible input of the desired frequency to pin 5. The soft-start feature provides a controlled 20 milliseconds turn-on to minimize inrush current and reduce overshoot at initial start-up or when inhibit is released. SHORT CIRCUIT PROTECTION MHF+ Series converters provide short circuit protection by restricting the output current to approximately 115% of the full load output current. The output current is sensed in the secondary stage to provide highly predictable and accurate current limiting, and to eliminate foldback characteristics. UNDERVOLTAGE LOCKOUT Undervoltage lockout prevents the units from operating below approximately 14 VDC input voltage to keep system current levels smooth, especially during initialization or re-start operations. MHF+ SERIES™ TRIPLE DC/DC CONVERTERS MHF+ Series™ Triple DC/DC converters provide a wide input voltage range of 16 to 48 VDC delivering 15 watts of total output power with output voltages of +5 and ±12 or +5 and ±15 VDC. The main output, +5 VDC, will supply up to 7.5 watts and the auxiliaries will supply up to 7.5 watts of combined power. Full power operation at -55° C to +125° C plus the ability to withstand transients of up to 80 V for up to 120 milliseconds make these converters an ideal choice for your high reliability systems. SYNCHRONIZATION To synchronize the converter’s switching frequency to a system clock apply the clock signal to the sync terminal (pin 7). When multiple converters are powered from a single power source, asynchronous (free run) operation will result in lower peak noise for common spectral peaks, but synchronous operation will eliminate any possibility of interference frequencies in the low audio band. Source impedance of the signal should be less than 100 ohms and the transition time should be less than 100 nanoseconds. The capacitively coupled sync input will synchronize on a differential signal of as low as 4 volts to as high as 5 V. If the sync function is not used, the terminal should be left open. SHORT CIRCUIT PROTECTION Internal current limiting circuitry protects all three outputs against short circuits. When output power exceeds approximately 130% of maximum output power, the output currents are limited. In addition, separate current limiting circuitry protects each output individually resulting in normal operation of either the main or the auxiliaries, whichever is not in a shorted condition. PACKAGING MHF+ Triple converters are packaged in hermetically sealed metal cases. MHF+ Triple converters can be purchased in a flanged or non-flanged case. The flanged option provides increased heat dissipation and also provides greater stability when mechanically secured. CONVERTER DESIGN MHF+ Triple Series of DC/DC converters incorporate dual-phase, phase-shifted technology with a continuous flyback topology. This design eliminates a minimum load requirement on the main output and eliminates cross regulation effects between the main output voltage and the auxiliary output voltages. The phase-shifted design offers a further benefit in reduced input and output ripple. INHIBIT FUNCTION An open collector, TTL compatible, inhibit terminal (pin 1) provides shut-down and start-up control. Applying a logic level low (<0.8 V), referenced to input common, will disable the output of the converter. When inhibited input current is reduced to 5 mA or less and there is no generation of switching noise. The inhibit terminal typically sinks 3 mA when the converter is inhibited. Leaving the terminal open or pulling it high will enable the converter. Use an open collector interface for logic high voltages of up to 11 volts. (Refer to Figure 2 for a connection diagram.) An open collector interface is not required if the logic high is in excess of the open circuit voltage of the inhibit terminal, 11 volts, but less than 40 volts. www.craneae.com Page 2 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT SIMPLIFIED SCHEMATIC DIAGRAMS 5 µH Positive Input Positive Output 2 µF PWM Controller Inhibit ID FET Driver Limit Ref. IC Input Common Output Common FIGURE 2: MHF+ SINGLE OUTPUT BLOCK DIAGRAM 0° POSITIVE INPUT +5 OUTPUT FEEDBACK ISOLATOR PWM CM CONTROLLER OUTPUT COMMON INPUT COMMON FEEDBACK ISOLATOR + AUX. OUTPUT SYNC PWM CM CONTROLLER 180° –AUX. OUTPUT FIGURE 1: MHF+ TRIPLE OUTPUT BLOCK DIAGRAM www.craneae.com Page 3 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT CONNECTION DIAGRAMS MHF+ Triple POSITIVE INPUT 9 10 k INHIBIT 1N4148 1 2N3501 200 pF 10 K 3.9 K 8 INPUT COMMON FIGURE 5: INHIBIT INTERFACE 9 0.01 28V F 7 +5 Output 2 Positive Input +5 Load + Aux. Output 4 Sync In + Aux. Load 5.1k Output Common 3 1 Inhibit 8 Input Common – Aux. Output 5 – Aux. Load If the sync terminal ([pin 7) is not used, it must be left floating. The ac coupling shown will prevent sync signal failure. FIGURE 6: AC COUPLING OF SYNC SIGNAL 1 Positive Input 2 9 Positive Input Output Common 4 8 Input Common Positive Output FMH-461 EMI FILTER 28V 5 Input Common 3 MHF+ TRIPLE Case* 6 Chassis Ground *The case ground connection should be as low an impedance as possible to minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance. FIGURE 7: EMI FILTER CONNECTION www.craneae.com Page 4 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT OPERATING CONDITIONS AND CHARACTERISTICS SYNC AND INHIBIT Input Voltage Range Single and dual models: • 16 to 40 VDC continuous • 50 V for up to 50 msec transient Triple models: • 16 to 48 VDC continuous • 80 V for up to 120 msec Output Power • 12 to 15 watts depending on model Power Dissipation (Pd) • 6 watts single and dual, 12 watts triple Lead Soldering Temperature (10 sec per pin) • 300°C Storage Temperature Range (Case) • –65°C to +150°C Case Operating Temperature (Tc) • –55°C to +125°C full power • –55°C to +135°C absolute Derating Output Power/Current • Linearly from 100% at 125°C to 0% at 135°C Output Voltage Temperature Coefficient • 100 ppm/°C typical • 150 ppm/°C maximum Input to Output Capacitance • 60 pF typical Current Limit • 115% of full load typical (130% typical triple) Isolation • 100 megohm minimum at 500 V Audio Rejection • 50 dB typical Conversion Frequency (55°C to +125°C Tc) • Free run 550 kHz typical (375 minimum, 500 kHz maximum triple) • External sync range 480 kHz min, 620 kHz max(400 to 600 kHz triple) Inhibit Pin Voltage (unit enabled) • 8.5 to 12 V, 10 V typical Undervoltage Lockout • 14 V input typical Sync In (500 to 600 kHz single and dual, 400 to 600 kHz triple) • Duty cycle 40% to 60% • Logic low 0.8 V max • Logic high 4 V min, 5 V max • If not used, connect to input common (on triple models, leave unconnected) • Referenced to input common www.craneae.com Sync Out - Referenced to input common Inhibit: TTL Open Collector • Logic low (output disabled) Logic low voltage ≤0.8 V max Inhibit pin current 4.0 mA max (3.0 typ, 5.0 max triple models) • Referenced to input common Logic high (output enabled) Open collector or unconnected (single and dual) Unconnected or 11 to 40 V (triple) MECHANICAL AND ENVIRONMENTAL Size (maximum) Non flanged 1.460 x 1.130 x 0.330 (37.08 x 28.70 x 8.38 mm) Flanged 2.005 x 1.130 x 0.330 (50.93 x 28.70 x 8.38 mm) See cases E1, E2, G1 and G2 for dimensions. Weight (maximum) Single and dual models: 30 grams typical Triple models: 32 grams typical Screening Standard, ES or 883 (Class H). See “883, Class H, QML Products – Element Evaluation” and “883, Class H, QML Products – Environmental Screening” for more information. Page 5 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT PIN OUT Pin Single Output (Except MHF+2828S) Inhibit No connection Output Common Positive Output Sync Case Ground Input Common Positive Input — 1 2 3 4 5 6 7 8 9 MHF+2828S Dual Output Triple Output Inhibit Positive Output (See note 1, below) Output Common Sync Case Ground Input Common Positive Input — Inhibit Positive Output Output Common Negative Output Sync Case Ground Input Common Positive Input — Inhibit Main (+5 V) Output Output Common Pos. Aux. Output Neg. Aux. Output Case Ground Sync In Input Common Positive Input 1. Pin 3 of MHF+2828S will provide 14 Vout referenced to output common (pin 4). PINS NOT IN USE Inhibit single, dual and triple models, pin 1 MHF+2828S, pin 3 Sync single and dual models, pin 5 Sync In triple models, pin 7 Dot on top of cover indicates pin one. 1 2 3 4 Leave unconnected Leave unconnected Connect to input common Leave unconnected Squared corner and dot on top of package indicate pin one. 1 5 BOTTOM VIEW MHF+ SINGLE AND DUAL NON-FLANGED OR FLANGED 8 7 2 3 4 5 BOTTOM VIEW MHF+ Triple 9 6 8 7 6 Dotted line outlines flanged package option. Dotted line outlines flanged package option. See cases E1 and E2 for dimensions. See cases E2 and G2 for dimensions. FIGURE 4: MHF+ TRIPLE PIN OUT FIGURE 3: MHF+ SINGLE AND DUAL PIN OUT www.craneae.com Page 6 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT SMD NUMBERS MODEL NUMBERING KEY MHF+ 28 12 D STANDARD MICROCIRCUIT DRAWING (SMD) F / 883 Base Model Input Voltage 5962-0251001HXC 5962-9213901HXC 5962-0325301HXC 5962-9166401HXC 5962-9160101HXC 5962-9689801HXC 5962-9555901HXC 5962-9214401HXC 5962-9161401HXC 5962-9560101HXC 5962-9560201HXC Output Voltage (R = decimal point, 3R3 = 3.3 Vout; Main and aux. Vout for triple models) Number of Outputs (S = single, D = dual, T = Triple) Case Option (Non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position.) MHF+ SIMILAR PART MHF+283R3S/883 MHF+2805S/883 MHF+285R2S/883 MHF+2812S/883 MHF+2815S/883 MHF+2828S/883 MHF+2805D/883 MHF+2812D/883 MHF+2815D/883 MHF+28512T/883 MHF+28515T/883 Flanged SMDs have the suffix HZC instead of HXC. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from http://www.dscc.dla.mil/programs/smcr Model Selection MHF+28 Base model Vout value number of outputs case option screening Choose one from each of the following rows Vout value singles: 3R3,5,5R2,12,15,28 duals: 5,12,15 triples*: 512 or 515 “R” = decimal point, 3R3 = 3.3VDC Number of outputs S (single), D (dual) or T (triple) Case option non-flanged, leave blank F - flanged Screening standard screening, leave blank /ES (ES screening), /883 (Class H, QML) * for triple models “5” indicates the main voltage, “12” or“15” indicate the ± auxiliary voltages. www.craneae.com Page 7 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. SINGLE OUTPUT MODELS MHF+283R3S PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT CONDITION VIN = 16 to 40 VDC OUTPUT POWER MIN 3.27 0 TYP MAX 3.30 3.33 — 2.4 MHF+2805S MIN 4.95 0 TYP MAX 5.00 5.05 — 2.4 MHF+285R2S MIN 5.16 0 TYP MAX 5.20 5.24 — 2.4 UNITS VDC A VIN = 16 to 40 VDC 0 — 8 0 — 12 0 — 12.48 OUTPUT RIPPLE VOLTAGE LINE REGULATION LOAD REGULATION 10 kHz - 2 MHz Tc = –55°C to +125°C Vin = 16 to 40 VDC NO LOAD TO FULL — — — — 30 50 5 20 80 800 100 50 — — — — 30 60 5 20 80 100 50 50 — — — — 30 60 5 20 50 100 35 35 INPUT VOLTAGE NO LOAD TO FULL CONTINUOUS TRANSIENT 50 ms 16 — 28 — 40 50 16 — 28 — 40 50 16 — 28 — 40 50 NO LOAD — 25 40 — 25 40 — 25 42 INHIBITED 10 kHz - 10 MHz Tc = –55°C to +125°C — — — 70 5 45 — 75 12 80 120 — — — — 75 5 35 — 77 12 80 100 — — — — 75 5 35 — 77 12 80 120 — mApp INPUT CURRENT INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT1 STEP LOAD RESP. STEP LINE RESP. START-UP CAPACITIVE LOAD mV p-p mV mV VDC V mA % SHORT CIRCUIT POWER DISSIPATION RECOVERY2 50% – 100% – 50% TRANSIENT RECOVERY2 — — 5 7.5 8 30 — — 3.5 7.5 6 30 — — 3.5 7.5 6 30 W ms –400 — 150 150 400 300 –400 — 150 150 400 300 –400 — 150 150 400 300 mV pk μs 16 – 40 – 16 VDC TRANSIENT3 RECOVERY2 –800 — 550 0.8 800 1.2 –800 — 550 0.8 800 1.2 –800 — 550 0.8 800 1.2 mV pk ms DELAY — 10 25 — 10 25 — 10 25 ms OVERSHOOT4 — 200 300 — 100 600 — 100 600 mV pk 300 μF 300 Notes 1. Indefinite short circuit protection not guaranteed above 125°C (case) 2. Recovery time is measured from application of the transient to the point at which Vout is within regulation. www.craneae.com W Page 8 of 20 Rev K - 20060613 300 3. Input step transition time >10 μs. 4. Input step transition time <100 μs. Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT CONDITION VIN = 16 to 40 VDC OUTPUT POWER MHF+2812S MHF+2815S MHF+2828S MIN TYP MAX 11.88 12.00 12.12 0 — 1.25 MIN TYP MAX 14.85 15.00 15.15 0 — 1.00 MIN TYP MAX 27.72 28.00 28.28 0 — 0.54 VIN = 16 to 40 VDC 0 — 15 0 — 15 0 — 15 OUTPUT RIPPLE VOLTAGE LINE REGULATION 10 kHz - 2 MHz Tc = –55°C to +125°C Vin = 16 to 40 VDC — — — 30 50 5 80 120 50 — — — 30 50 5 80 120 50 — — — 60 100 50 120 180 150 LOAD REGULATION INPUT VOLTAGE NO LOAD TO FULL NO LOAD TO FULL CONTINUOUS TRANSIENT 50 ms — 16 — 20 28 — 50 40 50 — 16 — 20 28 — 50 40 50 — 16 — 50 28 — 150 40 50 NO LOAD FULL LOAD INHIBITED 10 kHz - 10 MHz Tc = –55°C to +125°C — — — — — 78 25 680 5 35 — 79 50 752 12 80 120 — — — — — — 78 25 670 5 35 — 80 62 752 12 80 120 — — — — — — 82 25 640 5 35 — 84 60 760 12 80 120 — INPUT CURRENT INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT1 STEP LOAD RESP. STEP LINE RESP. START-UP W mV p-p mV mV VDC V mA mA pp % SHORT CIRCUIT POWER DISSIPATION RECOVERY2 50% – 100% – 50% TRANSIENT RECOVERY2 — — 3.5 7.5 6 30 — — 3.5 7.5 6 30 — — 3.5 7.5 6 30 W ms –500 — 150 150 500 300 –600 — 200 150 600 300 –800 — 600 200 800 400 mV pk μs 16 – 40 – 40 VDC TRANSIENT3 RECOVERY2 –800 — 550 0.8 800 1.2 –800 — 550 0.8 800 1.2 –1200 1100 1200 — 0.8 1.2 mV pk ms DELAY 0 10 25 0 10 25 OVERSHOOT4 0 200 1200 0 200 1500 Notes 1. Indefinite short circuit protection not guaranteed above 125°C (case) 2. Recovery time is measured from application of the transient to point at which Vout is within regulation. www.craneae.com UNITS VDC A Page 9 of 20 Rev K - 20060613 0 10 25 ms 0 200 280 mV pk 3. Input step transition time >10 μs. 4. Input step transition time <100 μs. Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. DUAL OUTPUT MODELS PARAMETER MHF+2805D CONDITIONS OUTPUT VOLTAGE MHF+2812D MHF+2815D MIN TYP MAX MIN TYP MAX MIN TYP MAX +VOUT 4.95 5.00 5.05 11.88 12.00 12.12 14.85 15.00 15.15 –VOUT 4.92 5.00 5.08 11.82 12.00 1218 14.78 15.00 15.23 UNITS VDC OUTPUT CURRENT1 VIN = 16 to 40 VDC — ±1.2 1.92 — ±0.625 1.125 — ±0.500 0.900 A OUTPUT POWER1 VIN = 16 to 40 VDC — — 12 — — 15 — — 15 W OUTPUT RIPPLE VOLTAGE ±VOUT 10 kHz - 2 MHz Tc = –55°C to +125°C — — 30 60 80 120 — — 30 60 80 120 — — 30 50 80 120 mV p-p LINE REGULATION BALANCED +VOUT Vin = 16 to 40 VDC LOAD REGULATION — 5 50 — 5 50 — 5 50 –VOUT — — 80 — — 100 — — 100 BALANCED +VOUT — 20 50 — 20 50 — 20 50 — — 100 — — 100 — — 100 LOAD LOAD CROSS REGULATION2 INPUT VOLTAGE NO LOAD TO FULL INPUT CURRENT INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT STEP LOAD RESP.5 BALANCED LOADS STEP LINE RESP. ± VOUT START-UP –VOUT mV NEGATIVE VOUT — 6 7.5 — 3 6 — 3 6 % CONTINUOUS TRANSIENT 50 msec NO LOAD FULL LOAD INHIBITED 10 kHz - 10 MHz Tc = –55°C to +125°C 16 — — — — — — 77 28 — 20 540 6 20 40 79 40 50 40 600 12 50 80 — 16 — — — — — — 76 28 — 25 645 5 35 50 83 40 50 50 754 12 60 100 — 16 — — — — — — 76 28 — 25 638 5 35 50 84 40 50 50 754 12 60 100 — VDC V — — 3 7.5 6 30 — — 3 7.5 6 50 — — 3 7.5 6 50 –600 200 600 –600 300 600 –600 300 600 –600 150 600 –600 100 600 –600 100 600 SHORT CIRCUIT3 POWER DISSIPATION RECOVERY4 50% – 100% – 50% +VOUT TRANSIENT –VOUT mA mA p-p % W ms mV pk RECOVERY4 16 – 40 – 40 VDC TRANSIENT6 — 150 500 — 200 400 — 200 500 μs –800 600 800 –750 550 750 –750 550 750 mV pk RECOVERY4 DELAY OVERSHOOT7 — — 0 0.8 12 100 1.2 20 250 — — 0 0.8 12 200 1.2 25 750 — — 0 0.8 12 200 1.2 25 750 ms ms mV pk Notes 1. Up to 13.5 watts, 90% (9.6W, 80% for 2805D) of the total output power is available from either output providing the opposite output is simultaneously carrying 10% (20% for 2805D) of the total output power. Each output must carry a minimum of 10% (20% for 2805D) of the total output power in order to maintain regulation on the negative output. 2. Effect on –Vout for the following conditions: +Po = 50% to 10% and –Po = 50% +Po = 50% and –Po = 50% to 10% www.craneae.com mV 3. Indefinite short circuit protection not guaranteed above 125°C (case) 4. Recovery time is measured from application of the transient to point at which Vout is within regulation. 5. Response of either output with the opposite output held at half of the total output power. 6. Input step transition time >10 μs. 7. Input step transition time <100 μs. Page 10 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. TRIPLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT2 OUTPUT POWER3 MHF+28512T MHF+28515T CONDITION MIN TYP MAX MIN TYP MAX MAIN 4.95 5.0 5.05 4.95 5.0 5.05 + AUXILIARY 11.64 12.0 12.36 14.55 15.0 15.45 – AUXILIARY 11.64 12.0 12.36 14.55 15.0 15.45 MAIN 0 — 1.5 0 — 1.5 + AUXILIARY — — 0.416 — — 0.333 – AUXILIARY — — 0.416 — — 0.333 TOTAL — — 2.125 — — 2.0 MAIN — — 7.5 — — 7.5 + AUXILIARY — — 5 — — 5 – AUXILIARY — — 5 — — 5 — — 15 — — 15 OUTPUT RIPPLE 10 kHz to 2 MHz TOTAL MAIN — 20 60 — 20 60 VOLTAGE 10 kHz to 2 MHz ± AUXILIARY — 30 90 — 30 112 LINE REGULATION4 MAIN — 25 75 — 25 75 VIN = MIN. TO MAX. ±AUXILIARY — 120 240 — 150 300 LOAD REGULATION4, 5 CROSS REGULATION6 INPUT VOLTAGE INPUT CURRENT INPUT RIPPLE CURRENT MAIN — 25 75 — 25 75 ± AUXILIARY — 120 240 — 150 300 STEP LOAD RESPONSE4, 8, 9 START-UP4 A W mV p-p mV mV – AUXILIARY — — 600 — — 600 mV 16 28 48 16 28 48 VDC V TRANSIENT 120 ms1 — — 80 — — 80 NO LOAD -55 - +25°C — 20 35 — 20 35 NO LOAD +125°C — 30 45 — 30 45 INHIBITED4 — 3 5 — 3 5 — 20 50 — 20 50 mA p-p 74 76 — 74 76 — % 10 kHz to 10 MHz mA POWER DISSIPATION MAIN4 — — 12 — — 12 ±AUXILIARY TRANSIENT MAIN ± AUXILIARY RECOVERY MAIN RECOVERY ±AUX. DELAY EACH OUTPUT — — 12 — — 12 — — — — — — — 5 2 10 850 950 8 3 25 — — — — — — — 5 2 10 850 950 8 3 25 Notes 1. Guaranteed, not tested 2. The sum of the 12 volt auxiliary output currents may not exceed 625 mA. The sum of the 15 volt auxiliary output currents may not exceed 500 mA. 3. The sum of the auxiliary output power may not exceed 7.5 watts. 4. Case temperature –55°C to +125°C. 5. Load regulation for the +5 is specified at 0.0 to 1.5 A with the aux. both held at 3.76 W (313 mA for the ±12, 250 mA for the ±15). Load regulation for the aux. is specified as both aux. from 0.0 to 3.76 W (313 mA for ±12, 250 mA for ±15) at the same time with the +5 held at 1.5 A. www.craneae.com VDC CONTINUOUS EFFICIENCY LOAD FAULT7 UNITS W mV pk ms ms 6. Cross regulation only occurs between the two auxiliaries and is measured on –aux. +5 is held constant at 1.0 A. Cross regulation is specified for two conditions: Negative aux.= 3.76 W; positive aux.= 0.37 W to 3.76 W. Negative aux. = 0.37 W to 3.76 W; positive aux. = 3.76 W. 7. Load fault = <0.05 Ω. 8. Transition time is 2 – 10 μs. 9. Time to settle to within 1% of Vout final value. Page 11 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified. 90 90 80 70 40V 28V 60 50 70 40V 60 50 2 4 6 8 10 40 12 2 4 MHF+2805S EFFICIENCY 6 8 10 12 40 14 15 6 16V 80 80 EFFICIENCY (%) 40V 28V 70 40V 60 28V 40 4 6 8 10 12 70 40V 60 28V 50 50 50 14 15 12 90 16V 70 10 FIGURE 10 90 80 8 OUTPUT POWER (Watts) MHF+2815S EFFICIENCY 16V 2 4 MHF+2812S EFFICIENCY FIGURE 9 90 60 2 OUTPUT POWER (Watts) FIGURE 8 EFFICIENCY (%) 40V 28V 60 50 OUTPUT POWER (Watts) 40 70 EFFICIENCY (%) 40 16V 80 28V EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 80 90 16V 16V 40 2 4 6 8 10 12 14 15 2 4 6 8 10 12 14 OUTPUT POWER (Watts) OUTPUT POWER (Watts) OUTPUT POWER (Watts) MHF+2805D EFFICIENCY MHF+2812D EFFICIENCY MHF+2815D EFFICIENCY FIGURE 13 FIGURE 12 FIGURE 11 0 –30 –40 –50 VOUT 100% to 50% 100mV/div. 500mV/div. –20 –60 50% to 100% –70 20V/div. ATTENUATION (dB) –10 –80 –90 –100 0.1 1 10 FREQUENCY (kHz) MHF+ SERIES AUDIO REJECTION FIGURE 14 www.craneae.com 100 VIN 1ms/div 16V TO 40V MHF+2805S STEP LINE RESPONSE FIGURE 14 Page 12 of 20 Rev K - 20060613 50μs/div 50% 100% MHF+2805S STEP LOAD RESPONSE FIGURE 15 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT 20V/div. Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified. 200mV/div. VIN 100mV/div. 100% to 10% +VOUT 1V/div. 200μs/div 10% 100% MHF+2805S STEP LOAD RESPONSE VIN 2 ms/div 1 ms/div 16V TO 40V MHF+2805S TURN-ON INTO FULL LOAD MHF+2815D STEP LINE RESPONSE FIGURE 18 FIGURE 17 FIGURE 16 100% to 50% POUT= 12W VOUT 20V/div. 10% to 100% PO= 7.5 W PO= 7.5 W –VOUT 100mV/div. 100mV/div. 5V/div. 100% to 20% +VOUT 20V/div. 20% to 100% 50% to 100% 50μs/div 50% 100% MHF+2815D +VOUT STEP LOAD RESPONSE 50μs/div 20% 100% MHF+2815D +VOUT STEP LOAD RESPONSE FIGURE 19 VIN 2 ms/div MHF+2815D TURN-ON INTO FULL LOAD FIGURE 21 FIGURE 20 10 5 2812D 2815D 0 –5 –10 2805D 0 20 40 60 80 100 POSITIVE OUTPUT LOAD (% OF TOTAL LOAD) –VOUT WITH SHIFT IN LOAD BALANCE CROSS REGULATION 2805D 8 16 6 MHF+2805S&D 2812D 4 COND A 2 0 2815D –2 COND B –4 2812D –6 –8 –10 INPUT VOLTAGE (Volts) –VOUT VOLTAGE CHANGE (%) –V OUT VOLTAGE CHANGE (%) 10 15 14 MHF+2812S&D MHF+2815S&D 13 2805D 10 20 30 40 50 OUTPUT LOAD (%) COND. A: 50% LOAD +V; 50% to 10% –V COND. B: 50% LOAD –V; 50% to 10% +V 12 10 11 12 13 www.craneae.com FIGURE 23 Page 13 of 20 Rev K - 20060613 15 LOW LINE DROPOUT VS. LOAD MHF+2805D/MHF+2812D/MHF+2815D CROSS REGULATION FIGURE 22 14 OUTPUT POWER (Watts) 50 mV DROP FIGURE 24 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified. 28 V 70 48 V 65 60 55 16 V 75 EFFICIENCY EFFICIENCY 75 200 mV / div. 80 16 V 28 V 70 48 V 65 60 2 4 6 10 8 12 14 55 16 2 4 6 5 VDC 500 mV / div. 80 8 10 12 14 OUTPUT POWER (W) OUTPUT POWER (W) MHF+28512T EFFICIENCY MHF+28515T EFFICIENCY 16 +15 VDC –15 VDC 5 ms / div. INPUT V: 16 TO 40 VDC, ±15 = 250 mA EACH, +5 = 1.5 A MHF+ 28515T STEP LINE RESPONSE MHF+28512T has a similar response VIN 10 V / div. VIN INPUT GND +5 VDC +5 GND 5 V / div. +5 VDC VIN +12 VDC 2 V / div. 2 V / div. INPUT GND +5 GND –12 VDC 5 ms / div. 5 ms / div. 5 ms / div. MHF+28512T TURN ON INTO FULL LOAD MAIN MHF+28512T TURN ON INTO FULL LOAD MAIN MHF+28512T TURN ON INTO FULL LOAD AUXILIARIES MHF+28515T has a similar response MHF+28515T has a similar response MHF+28515T has a similar response FIGURE 29 FIGURE 28 11.5 11 INPUT VOLTAGE FIGURE 27 FIGURE 26 10 V / div. 10 V / div. FIGURE 25 MHF+28515T 10.5 10 MHF+28512T 9.5 9 8.5 2 4 6 8 10 12 14 16 MAXIMUM OUTPUT POWER (W) LOW LINE DROPOUT FIGURE 31 www.craneae.com Page 14 of 20 Rev K - 20060613 FIGURE 30 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converter Cases 28 VOLT INPUT – 15 WATT BOTTOM VIEW CASE E1 Seam Seal Projection Weld Squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 0.960 (24.38) 1 2 3 4 5 0.030 dia. (0.76) 0.030 dia. (0.76) 8 7 6 0.160 (4.06) 1.460 max. (37.08) Seal hole: 0.080 ±0.002 (2.03 ±0.05) 1.105 (28.07) 0.905 (22.99) 0.705 (17.91) 0.505 (12.83) 0.205 (5.21) 0.000 0.25 (6.35) 0.000 0.330 max. (8.38) 0.25 (6.35) 0.000 0.330 max (8.38) 0.000 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 compression glass seal Case E1, Rev C, 20060111 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. FIGURE 32: CASE E1— SINGLE AND DUAL MODELS www.craneae.com Page 15 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converter Cases 28 VOLT INPUT – 15 WATT BOTTOM VIEW CASE E2 Projection Weld Seam Seal Squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 3 4 5 8 7 6 1.105 (28.07) 2 0.905 (22.99) 1 0.705 (17.91) 0.960 (24.38) 0.030 dia. (0.76) 9 0.160 (4.06) Seal Hole: 0.080 ±0.002 (2.03 ±0.05) 1.460 max. (37.08) 0.505 (12.83) 0.205 (5.21) 0.000 0.25 (6.35) 0.000 0.330 max (8.38) 0.25 (6.35) 0.000 0.330 max (8.38) 0.000 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 compression glass seal Case E2, Rev C, 20060111 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. FIGURE 33: CASE E2 — TRIPLE MODELS www.craneae.com Page 16 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converter Cases 28 VOLT INPUT – 15 WATT BOTTOM VIEW CASE G1 Flanged cases: Designator "F" required in Case Option position of model number Projection Weld Squared corner and dot on top of case indicate pin one. 0.960 (24.38) 1 4 5 0.128 dia (3.25) Seal hole: 0.080 ±0.002 (2.03 ±0.05) 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. Case G1, Rev B, September 23, 2005 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2005 Interpoint Corp. All rights reserved. FIGURE 34: CASE G1 — SINGLE AND DUAL MODELS www.craneae.com Page 17 of 20 Rev K - 20060613 1.590 (40.39) 1.105 (28.07) 6 0.905 (22.99) 0.000 7 0.705 (17.91) 8 0.140 (3.56) 0.25 (6.35) 0.000 0.330 max. (8.38) 0.25 (6.35) 0.000 3 0.560 (14.22) 0.160 (4.06) 0.000 0.330 max. (8.38) 2 0.505 (12.83) 0.030 dia. (0.76) 0.030 dia. (0.76) 0.205 (5.21) Seam Seal Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converter Cases 28 VOLT INPUT – 15 WATT BOTTOM VIEW CASE G2 Flanged cases: Designator "F" required in Case Option position of model number Projection Weld Seam Seal Squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 0.960 (24.38) 1 4 5 6 0.905 (22.99) 1.105 (28.07) Flange thickness: 0.047 (1.19) Seal hole: 0.080 ±0.002 (2.03 ±0.05) 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 2.005 max (50.93) 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 compression glass seal Case G2, Rev C, 20060111 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. FIGURE 34: CASE G2 — TRIPLE MODELS www.craneae.com Page 18 of 20 Rev K - 20060613 1.590 (40.39) 7 2.005 max. (50.93) 8 0.705 (17.91) 0.000 0.505 (12.83) 9 0.140 (3.56) 0.25 (6.35) 0.000 0.330 max. (8.38) 0.25 (6.35) 0.000 3 0.128 dia (3.25) 0.160 (4.06) 0.000 0.330 max. (8.38) 2 0.560 (14.22) 0.205 (5.21) 0.030 dia. (0.76) Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT 883, CLASS H, QML PRODUCTS – ELEMENT EVALUATION ELEMENT EVALUATION STANDARD (NON-QML)1 M/S2 P3 TEST PERFORMED (COMPONENT LEVEL) CLASS H, QML 2 M/S P3 Element Electrical (probe) yes no yes yes Element Visual no no yes yes Internal Visual no no yes no Final Electrical no no yes yes Wire Bond Evaluation4 no no yes yes SLAM™/C-SAM: Input Capacitors only (Add’l test, not req. by H or K) no no no yes Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SLAM™: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy Notes: 1. Non-QML products do no meet all of the requirements of MIL-PRF-38534 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components 4. Not applicable to EMI filters that have no wire bonds www.craneae.com Page 19 of 20 Rev K - 20060613 Crane Aerospace & Electronics Power Solutions MHF+ Single, Dual and Triple DC/DC Converters 28 VOLT INPUT – 15 WATT 883, CLASS H, QML PRODUCTS – ENVIRONMENTAL SCREENING TEST 125°C STANDARD non-QML 125°C /ES non-QML Class H /883 QML Pre-cap Inspection Method 2017, 2032 yes yes yes Temperature Cycle (10 times) Method 1010, Cond. C, -65°C to 150°C, ambient Method 1010, Cond. B, -55°C to 125°C, ambient no no no yes yes no Constant Acceleration Method 2001, 3000 g Method 2001, 500g no no no yes yes no Burn-In Method 1015, 160 hours at 125°C case, typical 96 hours at 125°C case, typical no no no yes yes no 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 no yes no yes yes no Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) no no yes yes yes no yes yes no Final Visual Inspection Method 2009 yes yes yes Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. MHF+ Single, Dual and Triple. Rev K- 20060613. This revision supercedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. MHF+ Series is a trademark of Interpoint. Copyright © 1994 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com Page 20 of 20