OPERATING CONDITIONS AND CHARACTERISTICS

Input Voltage Range

• 19 to 40 VDC continuous

• 50 V for 50 msec transient

Output Power

• up to 100 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)

• 20 watts

Case Operating Temperature (Tc)

• –55 to +125°C full power

• –55 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

Input to Output Capacitance

• 150 pF typical

Isolation

• 100 megohm minimum at 500 VDC, any pin to case

Audio Rejection

• 50 dB typical

Conversion Frequency

• Free run mode 600 kHz typical

550 kHz min, 650 kHz. max

• External sync range 525 to 675 kHz

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.

Weight (maximum)

86 grams

Screening

Space Prototype (O), Class H, or Class K Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P” 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, HP, 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

• If not used, connect to input common

Sync Out

• Referenced to input common

Inhibit (INH1, INH2) Open Collector

• Logic low (output disabled)

Current –10 to –5 mA

INH1 referenced to input common

Logic low 0.8 V max

INH2 referenced to output common

Logic low 0.5 V max

• Logic high (output enabled)

Open collector

Crane Aerospace & Electronics Power Solutions

www.craneae.com

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Rev H - 20071221

SMFLHP Single and Dual DC/DC Converters

28 VOLT INPUT – 100 WATT