MHF2812SF 查看數據表（PDF） - Crane Aerospace and Electronics.

零件编号

产品描述 (功能)

生产厂家

MHF2812SF

MHF+ Single, Dual and Triple DC/DC Converters

Crane Aerospace and Electronics. 

Crane Aerospace & Electronics Power Solutions

MHF+ Single, Dual and Triple DC/DC Converters

28 VOLT INPUT – 15 WATT

OPERATING CONDITIONS AND CHARACTERISTICS

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 AND INHIBIT

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

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.

www.craneae.com

Page 5 of 20

Rev K - 20060613

Share Link: