PRELIMINARY
V•I Chip Intermediate Bus Converter
IBC
TM
V•I Chip –
VIC-in-a-Brick
• Up to 600 W
Intermediate Bus Converters
Quarter-Brick, 48 Vin Family
1.5 to 48 Vdc Bus Voltages; 100 A - 600 W Output
• 94% Efficiency @ 3 Vdc
• 600 W @ 55ºC, 400 LFM
• 125°C operating temperature
• 400 W/in3 power density
• 38-55 Vdc input range
• 100 V input surge for 100 ms
• SAC topology
©
• Low noise ZCS/ZVS architecture
• 3.5 MHz switching frequency
• Fast dynamic response
• 2,250 Vdc basic insulation
• Parallelable, with faul
tolerance
Product Description
Absolute Maximum Ratings
These "VIC-in-a-Brick" Intermediate Bus Converter (IBC)
modules use Vicor’s V•I Chip Bus Converter Modules (BCM)
to achieve the highest performance for Intermediate Bus
Architecture applications. Operating from a 38 – 55 Vdc
input, ten different fixed ratio outputs are available from 3 to
48 Vdc. You can choose the intermediate bus voltage that is
optimal for your system and load requirements.
Parameter
Values
Unit
Notes
+In to -In voltage
Continuous
-1.0 to 60
100
Vdc
Vdc
Vdc
Surge
<100ms
ON/OFF to -In voltage
Isolation voltage
Input to output
In/Out to heat sink
-0.3 to 7.0
Basic insulation
These quarter-bricks are available with a single BCM,
rated up to 300 W or 70 A, or with dual BCMs, capable
of 600 W or 100 A. Dual output pins are used for output
currents over 50 A.
2,250
1,500
Vdc
Vdc
°C
Operating temperature
Pin soldering temperature
Wave
-40 to 125
Junction
Utilizing breakthrough Sine Amplitude Converter (SAC)
technology, BCMs offer the highest efficiency, lowest noise,
fastest transient response and highest power density. And full
load power is available at 55ºC with only 200 LFM of air
for single BCM versions and 400 LFM for dual BCM
versions, without a heat sink.
500 (260)
750 (390)
°F (°C)
°F (°C)
<5 sec
<7 sec
Hand
Thermal Resistance and Capacity
Parameter
Typ
13.3
11.7
6.1
Unit
VIC to ambient; 0 LFM (Single BCM)
VIC to ambient; 0 LFM (Dual BCM)
VIC to ambient; 200 LFM (Single BCM)
VIC to ambient; 200 LFM (Dual BCM)
Thermal capacity (Single BCM)
Thermal capacity (Dual BCM)
°C/W
°C/W
°C/W
°C/W
Ws/°C
Ws/°C
4.3
14.3
22.8
vicorpower.com
800-735-6200
V•I Chip Intermediate Bus Converter
Rev. 1.5
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