OPERATING CONDITIONS AND ChARACTERISTICS

input Voltage range

• 16 to 40 VDC continuous

• 50 V for 120 ms transient

output power

• 40 to 65 watts depending on model

Lead soldering temperature (10 sec per lead)

• 300°C

storage temperature range (case)

• –65°C to +150°C

power dissipation (pd)

• 14 watts (16 watts SMFL2805S, SMFL2805D)

case operating temperature (tc)

• –55°C to +125°C full power

derate output power/current

• MFL283R3S: linearly from 100% at 100 °C to 80% at 125 °C

output Voltage temperature coefficient

• 100 ppm/°C typical

input to output capacitance

• 150 pF, typical

current Limit

• 125% of full load typical

isolation

• 100 megohm minimum at 500 V

audio rejection

• 50 dB typical

conversion Frequency (-55°c to 125°c)

• Free run mode 600 kHz typical

525 kHz. min, 675 kHz max

inhibit pin Voltage (unit enabled)

• INH1 = 9 to12 V, INH2 = 6 to 9 V

MEChANICAL AND ENvIRONMENTAL

size (maximum)

3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)

See case U for dimensions.

Case options V, W, Y, and Z are available by special order.

Weight (maximum)

86 grams

screening

Space Prototype (O), Class H, or Class K

Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O) or “R”, per MIL-STD-38534. Interpoint model numbers

use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is

defined as “no RHA”.

See “Class H and K, QML Screening” tables for more information.

Available configurations: OO, HO, HR, KR

SyNC IN AND INhIbIT (INh1, INh2)

sync in (525 to 675 kHz)

• Duty cycle 40% min, 60% max

• Logic low 0.8 V max

• Logic high 4.5 V min, 5 V max

• Referenced to input common

sync out

• Referenced to input common

inhibit (inH1, inH2) ttL open collector

• Logic low (output disabled)

INH1 referenced to input common

Logic low 0.8 V max

Inhibit pin current 10 mA max

INH2 referenced to output common

Logic low 0.5 V max

Inhibit pin current 5 mA max

• Logic high (output enabled)

Open collector

Crane Aerospace & Electronics Power Solutions

www.craneae.com

Page 3 of 13

Rev H - 20061102

sMFL single and dual dc/dc converters

28 VoLt input – 65 Watt