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MFW28512S Datasheet(PDF) 2 Page - Crane Aerospace & Electronics. |
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MFW28512S Datasheet(HTML) 2 Page - Crane Aerospace & Electronics. |
2 / 9 page RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS TYPICAL CHARACTERISTICS B4-4 MFW SERIES 70 WATT DC/DC CONVERTERS SINGLE OUTPUTS MFW2805S MFW2812S MFW2815S PARAMETER CONDITION MIN TYP MAX MIN TYP MAX MIN. TYP MAX UNITS OUTPUT FULL LOAD 4.95 5.00 5.05 11.88 12.00 12.12 14.85 15.00 15.15 VDC VOLTAGE OUTPUT VIN = 19 TO 40 — — 12.00 — — 5.83 — — 4.67 A CURRENT OUTPUT Tc = –55°C TO +85°C — — 60 — — 70 — — 70 W POWER OUTPUT FULL LOAD BW ≤2 MHz — 30 50 — 30 50 — 30 50 mV p-p RIPPLE LINE VIN = 19 TO 40 — 10 20 — 10 20 — 10 20 mV REGULATION LOAD NO LOAD TO FULL — 10 20 — 10 25 — 10 25 mV REGULATION INPUT VOLTAGE 19 28 40 19 28 40 19 28 40 VDC INPUT NO LOAD — 75 90 — 70 90 — 70 90 mA CURRENT INHIBITED — 30 35 — 30 35 — 30 35 INPUT REFL. FULL LOAD — 10 25 — 10 25 — 10 25 mA p-p RIPPLE BW ≤10 MHz EFFICIENCY 78 80 — 81 83 — 81 83 — % STARTUP WITH LOW — 5 10 — 8 10 — 8 10 ms DELAY IMPEDANCE SOURCE Output Power • 60 to 70 watts depending on model Lead Soldering Temperature (10 sec per lead) • 300°C Storage Temperature Range (Case) • –55°C to +125°C Output Voltage Temperature Coefficient • 150 ppm/°C, typical Input to Output Capacitance • 160 pF, typical Isolation • 100 megohm minimum at 500 V Conversion Frequency • Free run mode 245 kHz, typical Inhibit Pin Voltage (unit enabled) • 4.5 to 5.5 V Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. Input Voltage Range • 19 to 40 VDC continuous (see Derating) Case Operating Temperature (Tc) • –55°C to +85°C full power SYNC AND INHIBIT DERATING OUTPUT POWER/CURRENT AND INPUT VOLTAGE Sync In (245 to 370 kHz.) • Duty cycle 70% min, 98% max • Logic low 0.8 V max • Logic high 4.5 V min • Referenced to input common • If sync is not used, leave unconnected Inhibit TTL Open Collector • Logic low (output disabled) Inhibit pin current 1 mA max • Referenced to input common • Logic high (output enabled) V = ≥ 4.5 V Temperatures are referenced to the temperature at the converter’s baseplate • Linearly derate output power/current from 100% at 85°C to 0% at 125°C. • Above 105°C linearly derate steady state input voltage to 33 volts at 125°C. • Indefinite short circuit protection is not guaranteed above 85°C case. • Operation below an input voltage of 19 volts, including operation in MIL- STD-704E emergency power conditions, is possible with derated output power. See Figures 10 and 11. |
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