MFA350 Datasheet, PDF (20/40 Pages) XP Power Limited – Screw Terminals Available

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General Specifications
Characteristic
Efficiency
Isolation: Input to Output
Input to Ground
Output to Ground
Switching Frequency: PFC
Main Converter
Power Density
Mean Time Between Failure
Weight
Minimum
3000
1500
100
Typical
86
62
157
400
Maximum
6.7
2.65 (1202)
Units
%
VAC
VAC
VDC
kHz
kHz
W/in³
kHrs
lb (g)
Notes & Conditions
Full load (see fig. 8 & 9)
MIL-HDBK-217F, Notice 2
+25 °C GB
Characteristic
Signals
AC OK/Powerfail
DC OK
Remote On/Off (Inhibit/Enable)
Current Share
Remote Sense
Notes & Conditions
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
Open collector referenced to 0 V, transistor normally off when DC is good (see fig. 11, 19 & 20).
Provides warning of DC output failure
Remotely switches outputs off, can also be configured as enable (see fig.12)
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)
Compensates for 0.5 V total voltage drop
Efficiency Versus Load
88%
86%
84%
82%
80%
78%
76%
74%
72%
0%
20%
40%
60%
Load %
80%
Figure 8
MFA350PS12-H @ 230 VAC
100%
120%
90%
88%
86%
84%
82%
80%
78%
76%
74%
72%
70%
68%
66%
0%
20%
40%
60%
Load %
80%
100%
120%
Figure 9
MFA350PS48-H @ 230 VAC
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