BCM
®
Bus Converter
BCM384x120y300Azz
®
S
C
US
C
NRTL
US
Isolated Fixed Ratio DC-DC Converter
Features & Benefits
•
384V
DC
– 12.0V
DC
300W Bus Converter
•
High efficiency (>94%) reduces system
power consumption
•
High power density (>1022W/in
3
)
reduces power system footprint by >40%
•
Contains built-in protection features:
n
Undervoltage
n
Overvoltage Lockout
n
Overcurrent Protection
n
Short circuit Protection
n
Overtemperature Protection
•
Provides enable/disable control,
internal temperature monitoring
•
Can be paralleled to create multi-kW arrays
Product Ratings
V
IN
= 384V (360 – 400V)
V
OUT
= 12.0V (11.3 – 12.5V)
(
no load
)
P
OUT
= up to 300W
K = 1/32
Description
The VI Chip
®
bus converter is a high efficiency (>94%) Sine
Amplitude Converter™ (SAC™) operating from a 360 to 400V
DC
primary bus to deliver an isolated, ratiometric output voltage from
11.3 to 12.5V
DC
. The Sine Amplitude Converter offers a low AC
impedance beyond the bandwidth of most downstream regulators;
therefore capacitance normally at the load can be located at the
input to the Sine Amplitude Converter. Since the transformation
ratio of the BCM384x120y300Azz is 1/32, the capacitance value
can be reduced by a factor of 1024x, resulting in savings of board
area, materials and total system cost.
The BCM384F120y300Azz is provided in a VI Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The co-molded VI Chip package provides
enhanced thermal management due to a large thermal interface
area and superior thermal conductivity. The high conversion
efficiency of the BCM384x120y300Azz increases overall
system efficiency and lowers operating costs compared to
conventional approaches.
Typical Applications
•
High End Computing Systems
•
Automated Test Equipment
•
High Density Power Supplies
•
Communications Systems
Typical Application
enable / disable
switch
SW1
F1
V
IN
C1
1µF
PC
TM
BCM
+IN
®
+OUT
V
OUT
L
O
A
D
-IN
-OUT
BCM
®
Bus Converter
Page 1 of 21
Rev 1.5
08/2016
vicorpower.com
800 927.9474
VICOR [ VICOR CORPORATION ]
