Vicor VI-J00 Family DC-DC Converters and Configurable Power Supplies - Manual (Page 53)

Design Guide & Applications Manual
For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies
VI-200 and VI-J00 Family Design Guide Rev 3.5 vicorpower.com
Page 52 of 98
Apps. Eng. 800 927.9474 800 735.6200
17. DC Input Power System (ComPAC / MI-ComPAC Family)
OVERVIEW
The ComPAC is a low profile, highly efficient, high density
configurable DC-DC power solution with EMC filtering,
transient protection and reverse polarity protection. It has
an isolated master disable input for remote shutdown, and
provides outputs from 1 – 95 Vdc and power-up to 600 W.
There are five input voltages available which comply with
telecommunication and industrial control EMC specifications.
Refer to data sheet for applicable standards at vicorpower.com.
There are two military input voltages available which comply
with military EMC specifications and the transient and spike
specifications. Refer to data sheet for applicable standards
at vicorpower.com.
ComPACs can be configured in 1-up, 2-up or 3-up
packages with total output power limited to the
maximum power of individual VI-200 or MI-200 series
converters. Output voltages may be trimmed by the user.
Output Power. The maximum total power which is
delivered from the ComPAC is:
Weight.
1-Up: 1.2 lbs (540 g)
2-Up: 2.4 lbs (1,080 g)
3-Up: 3.6 lbs (1,630 g)
Operating Case Temperature.
E-Grade: –10˚C to +85˚C
C-Grade: –25˚C to +85°C
I-Grade: –40˚C to +85°C
M-Grade: –55˚C to +85°C
Overall Efficiency. The overall efficiency of the ComPAC is
approximately 1% less than the efficiency of the Vicor
DC-DC converters (typical efficiencies: 77% for 2 V output,
81% for 5 V output and 83% for 12 – 48 V output).
EMC Performance, Conducted EMC. The ComPAC will
conform to the following conducted EMC specifications
on the input power leads:
• Telecom (24 V, 48 V inputs): Bellcore TR-TSY-000513,
Issue 2 July 1987 and Rev. 1, December 1988.
British Telecom Document BTR2511, Issue 2.
• Commercial (300 V input): FCC Pt. 15 Subpt. J,
Class A / VDE 0871 Class A.
• Military (28 V, 270 V): MIL-STD-461C
Conducted Emissions: CE01, CE03, CE07
Conducted Susceptibility: CS01, CS02, CS06
Radiated EMC. The ComPAC will conform to the
following radiated specifications:
• Military: Radiated Emissions: RE02; Radiated
Susceptibility: MIL-STD-461C, RS02, RS03.
Input Transient Protection. The input transient
protection will suppress short term transients appearing
on the input line. Refer to data sheet for applicable
standards at vicorpower.com.
Input Surge Withstand. The 24 V, 48 V and 300 V input
ComPAC shall withstand, without damage or interruption
of power, an input line surge shown below for a duration
of 100 ms from a source impedance of 500 milliohms.
Extended Input OV Shut Down. Surge protection shall
also shut down the ComPAC in the presence of sustained
input surges (100 – 1,000 ms) which would cause
excessive dissipation or damage. The ComPAC will auto
restart when the input overvoltage is removed.
Input Reverse Polarity Protection. The ComPAC’s input
is protected against reverse polarity. No damage will occur
provided that external current limiting is present (i.e., fuse).
Output Short Circuit Protection. Output short circuit
protection is provided by the current limiting of the Vicor
DC-DC converters.
Undervoltage Lockout. The ComPAC incorporates an
undervoltage lockout which will inhibit the output of all
converters until the input line exceeds the brownout
voltage specified for the converter input range.
Following startup, the undervoltage lockout will inhibit the
converter output(s) should the input drop roughly
8 – 10 V below the UV lockout limits stated above.
28 V 2 18 – 50
270 V 6 125 – 400
Nominal Input Input Voltage
Input Voltage Designator Range
24 V and 24 V (wide) 150 W 300 W 450 W
28 V, 270 V (military) 100 W 200 W 300 W
48 V and 48 V (wide), 300 V 200 W 400 W 600 W
Nominal Total Output Power
Input Voltage 1-Up 2-Up 3-Up
24 V 19
24 V (wide) 17
28 V (military) 17
48 V 41
48 V (wide) 35
270 V (military) 121
300 V 188
Nominal UV Lockout
Input Voltage (Vdc, Typical)
24 V 1 21.7 – 32
24 V (wide) W 18.7 – 36
48 V 3 42 – 60
48 V (wide) N 36 – 76
300 V 6 200 – 400
Nominal Input Input Voltage
Input Voltage Designator Range