BCM® Bus Converter
BCM48Bx040y200B00
S
®
C
NRTL US
C
US
Isolated Fixed Ratio DC-DC Converter
Features & Benefits
Product Ratings
• 48VDC – 4VDC 200W Bus Converter
VIN = 48V (38 – 55V)
POUT= up to 200W
K = 1/12
• High efficiency (>94%) reduces system
power consumption
VOUT = 4V (3.2 – 4.6V)
(no load)
• High power density (>681W/in3)
Description
reduces power system footprint by >40%
The VI Chip® bus converter is a high efficiency (>94%) Sine
Amplitude Converter™ (SAC™) operating from a 38 to 55VDC
primary bus to deliver an isolated, ratiometric output voltage from
3.2 to 4.6VDC. 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 BCM48Bx040y200B00 is 1/12, the capacitance value
can be reduced by a factor of 144x, resulting in savings of board
area, materials and total system cost.
• 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
The BCM48BF040y200B00 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 BCM48Bx040y200B00 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
BCM48Bx040y200B00
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 1.3
08/2016
vicorpower.com
800 927.9474