MCH/MGH Single and Dual DC/DC Converters

Page 3 of 18

Rev E - 20060508

28 VOLT INPUT – 1.5 WATT

Crane Aerospace & Electronics Power Solutions

www.craneae.com

OPERATING CONDITIONS AND CHARACTERISTICS

Input Voltage Range

• 12 to 50 VDC continuous

• 80 V for 120 msec transient

(70 V for 15 V single and dual models)

Output Power

• 1.5 W

Capacitive Load

• 200 μF single output models

• 100 μF each output, dual output models

Lead Soldering Temperature

• Reflow 220°C 30 sec. max

SN60, 62 or 63 recommended solder

• Hand solder 300°C 10 sec. max per lead

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 (Tc)

• Linearly from 100% at 125°C to 0% at 135°C

Output Voltage Temperature Coefficient

• 100 ppm/°C typical

Input to Output Capacitance

• 100 to 170 pF typical

Current Limit

• 125% of full load typical

Isolation

• 100 megohm minimum at 500 V

Audio Rejection

• 40 dB typical

Conversion Frequency (kHz)

• 25°C

300 min, 370 typ, 450 max

• –55°C to +125°C

270 min, 370 typ, 470 max

Inhibit Pin Voltage (unit enabled)

• 7 to 12 V

Undervoltage Lockout

• 8 V input typical

INHIBIT

Inhibit – TTL Open Collector

• Logic low (output disabled)

Logic low voltage ≤0.8 V

Inhibit pin current 1 mA max

• Referenced to input common

• Logic high (output enabled) open collector

MECHANICAL AND ENVIRONMENTAL

Size (maximum)

MCH models 0.980 x 0.805 x 0.270 inches (24.89 x 20.45 x 6.86 mm)

See case A2 for dimensions.

MGH models 1.010 x 0.880 x 0.250 inches (25.65 x 22.35 x 6.35 mm)

Shown on page one with “gull wing” lead option, also available with

straight leads. See case B for dimensions and options.

Weight (maximum)

12 grams typical

Screening

Standard, ES, or 883 (Class H, QML). See “883, Class H, QML Products –

Element Evaluation” and “883, Class H, QML Products – Environmental

Screening” for more information.

+

POSITIVE

INPUT

INHIBIT

FB

SHUTDOWN

PWM

CONTROLLER

INPUT

COMMON

+

+

DUAL MODELS ONLY

NEGATIVE

OUTPUT

OUTPUT

COMMON

POSITIVE

OUTPUT

3

4

6

1

7

2

0.47 μF

typical