VIV0102THJ Datasheet, PDF (1/16 Pages) Vicor Corporation – DC to DC Voltage Transformation

VIV0102THJ
VTM^TM
DC to DC
Voltage Transformation
PRELIMINARY DATASHEET
S
C NRTL US
FEATURES
• 38.4 Vdc – 1.2 Vdc 50 A Voltage Transformation Module
- Operating from standard 48 V or 24 V PRMs
• High efficiency (>89%) reduces system power
consumption
• High density (334 A/in³)
• “Half Chip” V•I Chip package enables surface mount,
low impedance interconnect to system board
• Contains built-in Protection features:
- Overvoltage lockout
- Overcurrent
- Short circuit
- Over temperature protection
• Provides enable/disable control, internal temperature
monitoring, current monitoring
• ZVS/ZCS resonant Sine Amplitude Converter topology
TYPICAL APPLICATION
• High End Computing Systems
• Automated Test Equipment
• Telecom Base Stations
• High Density Power Supplies
• Communication Systems
DESCRIPTION
The V•I Chip Voltage Transformation Module is a high efficiency
(>89%) Sine Amplitude Converter (SAC)^TM operating from a 26
to 55 Vdc primary bus to deliver an isolated 1.2 V secondary.
The Sine Amplitude Converter offers a low AC impedance
beyond the bandwidth of most downstream regulators, which
means that capacitance normally at the load can be located at
the input to the Sine Amplitude Converter. Since the K factor of
the VIV0102THJ is 1/32, that capacitance value can be reduced
by a factor of 1,024x, resulting in savings of board area, materials
and total system cost.
The VIV0102THJ 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
VIV0102THJ increases overall system efficiency and lowers
operating costs compared to conventional approaches.
The VIV0102THJ enables the utilization of Factorized Power
Architecture providing efficiency and size benefits by lowering
conversion and distribution losses and promoting high density
point of load conversion.
V_IN = 26 – 55 V
V_OUT = 0.81 – 1.72 V (NO LOAD)
I_OUT = 50 A(_NOM)
K = 1/32
TYPICAL APPLICATION
V_IN
VC
PR
SG
OS
PC
CD
TM
IL
PRM
+In
+Out
-In
-Out
L
O
+In
IM
+Out
A
TM
VC
VTM
D
PC
-Out
-In
v i c o r p o w e r. c o m
V•I CHIP INC. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.3
9/2009
Page 1 of 16