Not Recommended for New Designs
BCM® Bus Converter
B048x160y24A
S
C
NRTL US
Unregulated DC-DC Converter
FEATURES
DESCRIPTION
The VI Chip® bus converter is a high efficiency (>94%) Sine
Amplitude Converter™ (SAC™) operating from a 38 to 55 Vdc
primary bus to deliver an isolated, unregulated 12.7 to 18.3
output. 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 B048x160y24A is 1/3, the
• 48 Vdc – 16.0 Vdc 240 W Bus Converter
• High efficiency (>94%) reduces system
power consumption
• High power density (>817 W/in3)
reduces power system footprint by >40%
• Contains built-in protection features:
- Undervoltage
- Overvoltage Lockout
capacitance value can be reduced by a factor of 9x, resulting in
savings of board area, materials and total system cost.
- Overcurrent Protection
- Short circuit Protection
- Overtemperature Protection
The B048x160y24A 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 B048x160y24A increases overall
system efficiency and lowers operating costs compared to
conventional approaches.
• Provides enable/disable control,
internal temperature monitoring
• Can be paralleled to create multi-kW arrays
TYPICAL APPLICATIONS
PART NUMBERING
• High End Computing Systems
• Automated Test Equipment
• High Density Power Supplies
• Communications Systems
PART NUMBER
PACKAGE STYLE
PRODUCT GRADE
F = J-Lead
T = -40° to 125°C
B048 x 160 y 24A
T = Through hole M = -55° to 125°C
For Storage and Operating Temperatures see Section 6.0 General Characteristics
TYPICAL APPLICATION
PC
enable / disable
TM
L
O
A
D
switch
®
BCM
Bus Converter
SW1
F1
+In
+Out
VIN
-In
-Out
BCM® Bus Converter
Page 1 of 18
Rev 1.0
vicorpower.com
800 927.9474
01/2014