BCM® Bus Converter
BCM352x125y300A00
S
®
C
NRTL US
C
US
Isolated Fixed Ratio DC-DC Converter
Features & Benefits
Product Ratings
• 352VDC – 12.5VDC 300W Bus Converter
VIN = 352V (330 – 365V)
POUT = up to 300W
K = 1/28
• High efficiency (>95%) reduces
system power consumption
VOUT = 12.5V (11.79 – 13.04V)
(no load)
• High power density (1000W/in3) reduces
power system footprint by >40%
Description
• “Full Chip” VI Chip® package enables surface mount,
low impedance interconnect to system board
The VI Chip® Bus Converter is a high efficiency (>95%) Sine
Amplitude ConverterTM (SACTM) operating from a 330 to 365VDC
primary bus to deliver an isolated ratiometric output voltage from
11.79 to 13.04VDC. The SAC offers a low AC impedance beyond
the bandwidth of most downstream regulators, meaning that
input capacitance normally located at the input of a regulator
can be located at the input to the SAC. Since the K factor of the
BCM352x125y300A00 is 1/28, that capacitance value can be
reduced by a factor of 784x, resulting in savings of board area,
materials and total system cost.
• Contains built-in protection features against:
nꢀUndervoltage
nꢀOvervoltage
nꢀOvercurrent
nꢀShort Circuit
nꢀOvertemperature
• Provides enable/disable control,
internal temperature monitoring
The BCM352F125y300A00 is provided in a VI Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The VI Chip package provides flexible thermal
management through its low junction-to-case and junction-to-
board thermal resistance. With high conversion efficiency the
BCM352x125y300A00 increases overall system efficiency and
lowers operating costs compared to conventional approaches.
• ZVS/ZCS Resonant Sine Amplitude Converter topology
• Can be paralleled to create multi-kW arrays
Typical Application
• High End Computing Systems
• Automated Test Equipment
• High Density Power Supplies
Part Numbering
Product Number
Package Style (x)
Product Grade (y)
F = J-Lead
BCM352x125y300A00
T = -40° to 125°C
T = Through hole
For Storage and Operating Temperatures see Section 6.0 General Characteristics
Typical Application
PC
POL
POL
enable / disable
TM
switch
BCM®
SW1
F1
POL
+IN
-IN
+OUT
VOUT
C1
1µF
VIN
POL (8)
-OUT
BCM® Bus Converter
Page 1 of 21
Rev 2.0
08/2016
vicorpower.com
800 927.9474
VICOR [ VICOR CORPORATION ]
