ABSOLUTE MAXIMUM RATINGS

INHIBIT

RECOMMENDED OPERATING CONDITIONS

TYPICAL CHARACTERISTICS

Input Voltage

• 16 to 40 VDC continuous for 40 W load

Lead Soldering Temperature (10 sec per lead)

• 300°C

Storage Temperature Range (Case)

• –65°C to +150°C

B3-4

FM-704A EMI FILTER

40 WATT

Input Voltage Range

• 16 to 40 VDC continuous for 40 W load

Case Operating Temperature (Tc)

• –55°C to +125°C

Derating Output Power

• Linearly from 40 W at 105°C to 25 W at 125°C to meet

MIL-STD-1275A (AT) and MIL-STD-704A

Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified.

Capacitance

• 0.017 µF max, any pin to case

Undervoltage lockout

• 7 VDC min, 15 VDC max

Isolation

• 100 megohm minimum at 500 V

• Any pin to case, except case pin

Inhibit Pin Voltage (unit enabled)

• 5.5 V max

Inhibit TTL Open Collector

• Logic low (output disabled)

Logic low voltage

≤0.8 V

Logic low inhibit pin current 0.6 mA max

• Referenced to input common

• Logic high (output enabled)

Open collector

FM-704A

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT VOLTAGE

NO LOAD

0

28

40

40 W LOAD

16

28

40

VDC

UNDERVOLTAGE LOCKOUT

7

—

15

INPUT CURRENT

—

—

2.5

A

—

—

1.0

NO LOAD

—

—

5

mA

INHIBITED

—

—

2

INPUT SURGE

40 W, 100 V, 0.5

Ω Z

1

42

—

48

INPUT SPIKE

40 W, 400 V, 0.5

Ω Z

2

——

48

V

OUT

40 W, 600 V, 50

Ω Z

3

—

—

48

DIFFERENTIAL MODE

500 kHz

60

—

—

dB

NOISE REJECTION

1 MHz

55

—

—

Tc = 25°C

—

—

0.45

Ω

OUTPUT VOLTAGE

STEADY STATE

VDC

INHIBITED

—

—

1

OUTPUT CURRENT

—

—

2.5

A

—

—

1.0

INTERNAL POWER

PEAK

DISSIPATION

105°C

—

—

1000

125°C

—

—

500

W

CONTINUOUS ( > 10 SEC.)

105°C

—

—

30

125°C

—

—

15

Notes

1. Meets MIL-STD-1275A (AT) Surge and Figure 8 and 9 of MIL-STD-704A. For these standards derate output power linearly from 40 W at 105°C to 25

W at 125°C.

2. Meets Panavia SP-P-90001, British Standard BS3G100 and Civil Aircraft D0160 Standards.

3. Meets MIL-STD-461C 1.2 CS06 limits.