VTM48E_030_070A00 Datasheet, PDF (1/18 Pages) Vicor Corporation – VTM

VTM48E x 030 y 070A00
VTM^TM
Current Multiplier
®
C
US
S
C NRTL US
FEATURES
• 48 Vdc to 3 Vdc 70 A current multiplier
- Operating from standard 48 V or 24 V PRM^TM regulators
• High efficiency (>94%) reduces system power
consumption
• High density (238 A/in³)
• “Full Chip” V•I Chip package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features:
- Overvoltage Lockout
- Overcurrent
- Short Circuit
- Overtemperature
• Provides enable / disable control,
internal temperature monitoring
• ZVS / ZCS resonant Sine Amplitude Converter topology
• Less than 50ºC temperature rise at full load
in typical applications
TYPICAL APPLICATIONS
• High End Computing Systems
• Automated Test Equipment
• High Density Power Supplies
• Communications Systems
TYPICAL APPLICATION
DESCRIPTION
The V•I Chip^TM current multiplier is a high efficiency (>94%)
Sine Amplitude Converter^TM (SAC^TM) operating from a
26 to 55 Vdc primary bus to deliver an isolated 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 K factor of the
VTM48EF030T070A00 is 1/16, the capacitance value can be
reduced by a factor of 256, resulting in savings of board area,
materials and total system cost.
The VTM48EF030T070A00 is provided in a V•I Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The co-molded V•I Chip package provides
enhanced thermal management due to a large thermal
interface area and superior thermal conductivity. The high
conversion efficiency of the VTM48EF030T070A00 increases
overall system efficiency and lowers operating costs compared
to conventional approaches.
The VTM48EF030T070A00 enables the utilization of Factorized
Power Architecture^TM which provides efficiency and size
benefits by lowering conversion and distribution losses and
promoting high density point of load conversion.
V_IN = 26 to 55 V
V_OUT = 1.6 to 3.4 V(NO LOAD)
I_OUT = 70 A (NOM)
K = 1/16
PART NUMBERING
PART NUMBER
PACKAGE STYLE
F = J-Lead
VTM48E x 030 y 070A00
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
Regulator
Voltage Transformer
VIN
VC
PR
SG
OS
PC
CD
TM
IL
PRM^TM
Regulator
+In
+Out
TM
VC
PC
VTM^TM
Transformer
+In
+Out
L
O
(See Application Note AN:024)
A
D
-In
-Out
-In
-Out
Factorized Power Architecture^TM
v i c o r p o w e r. c o m
V•I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 3.2
2/2011
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