BCM® Bus Converter
BCM48Bx320y300A00
S
®
C
NRTL US
Isolated Fixed-Ratio DC-DC Converter
Features & Benefits
Product Ratings
•
•
48 – 32.0VDC 300W Bus Converter
VIN = 48V (38 – 55V)
POUT = up to 300W
K = 2/3
High efficiency (>96%) reduces system
power consumption
VOUT = 32.0V (25.3 – 36.7V)
(No Load)
•
•
High power density (>1022W/in3)
reduces power system footprint by >40%
Product Description
Contains built-in protection features:
ꢀUndervoltage
ꢀOvervoltage Lockout
ꢀOvercurrent Protection
ꢀShort circuit Protection
ꢀOvertemperature Protection
The VI Chip® bus converter is a high‑efficiency (>96%) Sine
Amplitude Converter™ (SAC™) operating from a 38 to 55VDC
primary bus to deliver an isolated, ratiometric output voltage from
25.3 to 36.7VDC. 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 BCM48Bx320y300A00 is 2/3, the capacitance value
can be reduced by a factor of 2.25x, resulting in savings of board
area, materials and total system cost.
•
•
Provides enable / disable control,
internal temperature monitoring
Can be paralleled to create multi-kW arrays
The BCM48BF320y300A00 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 BCM48Bx320y300A00 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
Part Numbering
Product Number
Package Style (x)
Product Grade (y)
F = J‑Lead
T = –40° to 125°C
M = –55° to 125°C
BCM48Bx320y300A00
T = Through hole
For storage and operating temperatures see General Characteristics
Typical Application
PC
TM
enable / disable
switch
L
O
A
D
®
BCM
Bus Converter
SW1
F1
+IN
+OUT
VIN
-OUT
-IN
BCM® Bus Converter
Page 1 of 20
Rev 1.4
10/2018