MCD10059 Rev. 1.1, 21-Jan-10

Page 3 of 41

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F & FC Series DC-DC Converter Input Filters

F4804A, 0-80V, 4 Amps, SMT Mount

Electrical Specifications

Parameter

Notes

Min

Typ

Max

Units

Absolute Maximum Ratings

Input Voltage

Continuous

0

100

VDC

Operating Ambient Temperature

-40

85

°C

Storage Temperature

-55

125

°C

Electrical Characteristics

Operating Input Voltage Range

0

48

80

VDC

Maximum Operating Current

85 °C ambient, no airflow

4

ADC

DC Resistance (total for two legs)

0.07

Ω

Filter differential inductance

5

µH

Filter common mode inductance

For frequencies below 10 MHz

60

µH

Differential mode Attenuation at 400 kHz

1

35

dB

Differential mode attenuation at 30 MHz

1

56

dB

Common mode Attenuation at 400 kHz

2

50

dB

Common mode Attenuation at 30 MHz

2

60

dB

Efficiency at Maximum Load

Vin = 48V @ 4 A

99.2

99.4

%

Additional Notes:

1.

50 Ω source and 50 Ω load impedance. See Fig 2 for differential mode attenuation in 50 kHz-100 MHz frequency range.

2.

50 Ω source and 50 Ω load impedance; external common-mode capacitors 0.47 µF (from IN+ and IN- to the common chassis).

See Fig. 3 and Fig. 4 for attenuation in 50 kHz-100 MHz frequency range.