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6

General Specifications

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Efficiency

86

%

Full load (see fig. 8 & 9)

Isolation: Input to Output

Input to Ground

Output to Ground

3000

VAC

1500

VAC

100

VDC

Switching Frequency: PFC

Main Converter

62

kHz

157

kHz

Power Density

11.1

W/in

3

Mean Time Between Failure

460

kHrs

MIL-HDBK-217F, Notice 2

+25 °C GB

Weight

1.35 (612)

lb (g)

Characteristic

Notes & Conditions

Signals

AC OK/Powerfail

Open collector referenced to output 0V, transistor normally off when AC is good (see fig. 10, 16, 17 & 18)

AC OK: Provides

≥ 5 ms warning of loss of output from AC failure

DC OK

Open collector referenced to 0 V, transistor normally off when DC is good (see fig. 11, 19 & 20).

Provides warning of DC output failure

Remote On/Off (Inhibit/Enable)

Remotely switches outputs off, can also be configured as enable (see fig.12)

Current Share

Up to 3 supplies can be connected in parallel. Output current is shared within 10% at full load. Derate overall

output current to 90% when used in parallel (see fig.13, 14 & 15)

Remote Sense

Compensates for 0.5 V total voltage drop

Efficiency Versus Load

72%

74%

76%

78%

80%

82%

84%

86%

88%

0%

20%

40%

60%

80%

100%

120%

Load %

Figure 8

MFA350PS12 @ 230 VAC

66%

68%

70%

72%

74%

76%

78%

80%

82%

84%

86%

88%

90%

0%

20%

40%

60%

80%

100%

120%

Load %

Figure 9

MFA350PS48 @ 230 VAC