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B048X080Y24A Datasheet, PDF (1/18 Pages) Vicor Corporation – Unregulated DC-DC Converter
Not Recommended for New Designs
BCM® Bus Converter
B048x080y24A
FEATURES
• 48 Vdc – 8 Vdc 240 W Bus Converter
• High efficiency (>95%) reduces system
power consumption
• High power density (>817 W/in3)
reduces power system footprint by >40%
• Contains built-in protection features:
- Undervoltage
- Overvoltage Lockout
- Overcurrent Protection
- Short circuit Protection
- Overtemperature Protection
• Provides enable/disable control,
internal temperature monitoring
• Can be paralleled to create multi-kW arrays
TYPICAL APPLICATIONS
• High End Computing Systems
• Automated Test Equipment
• High Density Power Supplies
• Communications Systems
S
C NRTL US
Unregulated DC-DC Converter
DESCRIPTION
The VI Chip® bus converter is a high efficiency (>95%) Sine
Amplitude Converter™ (SAC™) operating from a 38 to 55 Vdc
primary bus to deliver an isolated, unregulated 6.3 to 9.2
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 B048x080y24A is 1/6, the
capacitance value can be reduced by a factor of 36x, resulting
in savings of board area, materials and total system cost.
The B048x080y24A 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 B048x080y24A increases overall
system efficiency and lowers operating costs compared to
conventional approaches.
PART NUMBERING
PART NUMBER
B048 x 080 y 24A
PACKAGE STYLE
F = J-Lead
T = Through hole
PRODUCT GRADE
T = -40° to 125°C
M = -55° to 125°C
For Storage and Operating Temperatures see Section 6.0 General Characteristics
TYPICAL APPLICATION
PC
enable / disable
TM
switch
L
SW1
BCM®
O
Bus Converter
F1
+In
+Out
A
VIN
D
-In
-Out
BCM® Bus Converter
Page 1 of 18
Rev 1.1
08/2014
vicorpower.com
800 927.9474