BCM® Bus Converter
BCM384x120y300Azz
S
®
C
NRTL US
C
US
Isolated Fixed Ratio DC-DC Converter
Features & Benefits
Product Ratings
• 384VDC – 12.0VDC 300W Bus Converter
VIN = 384V (360 – 400V)
POUT= up to 300W
K = 1/32
• High efficiency (>94%) reduces system
power consumption
VOUT = 12.0V (11.3 – 12.5V)
(no load)
• High power density (>1022W/in3)
reduces power system footprint by >40%
Description
• Contains built-in protection features:
n Undervoltage
The VI Chip® bus converter is a high efficiency (>94%) Sine
Amplitude Converter™ (SAC™) operating from a 360 to 400VDC
primary bus to deliver an isolated, ratiometric output voltage from
11.3 to 12.5VDC. 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.
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
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
PC
TM
enable / disable
switch
L
O
A
D
BCM®
SW1
F1
+IN
+OUT
VOUT
C1
1µF
VIN
-IN
-OUT
BCM® Bus Converter
Page 1 of 21
Rev 1.5
08/2016
vicorpower.com
800 927.9474
VICOR [ VICOR CORPORATION ]
