VTM® Current Multiplier
VTM48EH120x010B00
S
C
NRTL US
High Efficiency, Sine Amplitude Converter™
FEATURES
DESCRIPTION
The VI Chip current multiplier is a high efficiency (>95%)
Sine Amplitude Converter™ (SAC™) 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, 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 VTM48EH120T010B00 is 1/4, that capacitance value can
be reduced by a factor of 16, resulting in savings of board area,
materials and total system cost.
• 48 Vdc to 12 Vdc 10 A current multiplier
- Operating from standard 48 V or 24 V PRMmodules
• High efficiency (>95%) reduces system power
consumption
• High density (901 W/in3)
• “Half Chip” VI Chip® package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features against:
- Overvoltage
- Overcurrent
- Short Circuit
- Overtemperature
The VTM48EH120T010B00 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 large thermal interface
area and superior thermal conductivity. With high conversion
efficiency the VTM48EH120T010B00 increases overall system
efficiency and lowers operating costs compared to conventional
approaches.
• Provides enable/disable control, internal temperature
monitoring, current monitoring
• ZVS/ZCS resonant Sine Amplitude Converter topology
The VTM48EH120T010B00 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.
• 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
• 0
(NOM)
VIN = 26 to 55 V
OUT = 6.5 to 13.8 V
IOUT = 10 A
K= 1/4
(NO LOAD)
V
PART NUMBERING
PART NUMBER
PRODUCT GRADE
T = -40° to 125°C
M = -55° to 125°C
VTM48EH120 x 010B00
For Storage and Operating Temperatures see Section 6.0 General Characteristics
Regulator
Current Multiplier
VC
IM
PC
VC
PR
SG
OS
CD
TM
PC
TM
IL
L
O
A
D
®
®
(See Application Note AN:024)
VTM
PRM
+Out
+Out
+In
+In
VIN
-Out
-Out
-In
-In
Factorized Power Architecture™
VTM® Current Multiplier
Page 1 of 16
Rev 1.2
vicorpower.com
800 927.9474
08/2015