BCM384 x 480T325A00
BCM™
Bus Converter
S
C
NRTL US
FEATURES
DESCRIPTION
The V•I Chip™ bus converter is a high efficiency (>95%) Sine
Amplitude Converter™ (SAC™) operating from a 360 to 400
Vdc primary bus to deliver an isolated 45 – 50 V nominal,
unregulated secondary. 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 BCM384F480T325A00 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.
• 384 Vdc – 48 Vdc 325 W Bus Converter
• High efficiency (>95%) reduces system power
consumption
• High power density (>1000 W/in3)
reduces power system footprint by >40%
•
• “Full Chip” V I Chip package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features: undervoltage,
overvoltage lockout, overcurrent protection, short
circuit protection, overtemperature protection.
The BCM384F480T325A00 is provided in a V•I Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The V•I Chip package provides flexible
thermal management through its low junction-to-case and
junction-to-board thermal resistance. With high conversion
efficiency the BCM384F480T325A00 increases overall system
efficiency and lowers operating costs compared to
conventional approaches.
• Provides enable/disable control, internal temperature
monitoring
• ZVS/ZCS Resonant Sine Amplitude Converter topology
• Can be paralleled to create multi-kW arrays
TYPICAL APPLICATIONS
VIN = 360 – 400 V
OUT = 45 – 50 V(NO LOAD)
POUT = 325 W(NOM)
K = 1/8
• High End Computing Systems
• Automated Test Equipment
• Telecom Base Stations
V
PART NUMBERING
• High Density Power Supplies
• Communications Systems
PART NUMBER
PACKAGE STYLE
PRODUCT GRADE
F = J-Lead
BCM384 x
480
T325A00
T = -40° to 125°C
T = Through hole
For Storage and Operating Temperatures see Section 6.0 General Characteristics
TYPICAL APPLICATION
VC
VC
SG
OS
CD
PR
PC
TM
PC
enable / disable
TM
PC
TM
IL
L
O
A
D
switch
SW1
PRM
VTM
BCM
F1
+Out
+In
+Out
+In
-In
+Out
+In
C1
1 µF
VIN
-Out
-In
-Out
-Out
-In
Rev. 1.9
4/2011
V•I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Page 1 of 18
vicorpower.com
VICOR [ VICOR CORPORATION ]
