BCM® Bus Converter
BCM352x440y330A00
S
®
C
NRTL US
C
US
Isolated Fixed Ratio DC-DC Converter
Features & Benefits
Product Ratings
• 352VDC – 44VDC 325W Bus Converter
VIN = 352V (330 – 365V)
POUT = up to 325W
K = 1/8
• High efficiency (>95%) reduces
system power consumption
VOUT = 44V (41.25 – 45.63V)
(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
41.25 to 45.63VDC. 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 BCM352x440y330A00 is 1/8, that capacitance value can be
reduced by a factor of 64x, 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 BCM352F440y330A00 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
BCM352x440y330A00 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
• Telecom Base Stations
Part Numbering
Product Number
Package Style (x)
Product Grade (y)
BCM352x440y330A00
F = J-Lead
T = -40° to 125°C
For Storage and Operating Temperatures see Section 6.0 General Characteristics
Typical Application
Bus Converter
Regulator
Current Multiplier
VC
VC
SG
OS
CD
PR
PC
TM
PC
enable / disable
PC
TM
IL
TM
L
O
A
D
switch
SW1
BCM®
PRM™
VTM™
F1
F2
+IN
+OUT
+IN
+OUT
+OUT
+IN
-IN
VIN
-IN
-IN
-OUT
-OUT
-OUT
BCM® Bus Converter
Page 1 of 20
Rev 1.8
08/2016
vicorpower.com
800 927.9474
VICOR [ VICOR CORPORATION ]
