VTM48EX040Y050B0R Datasheet, PDF (1/19 Pages) Vicor Corporation – High Efficiency, Bi-directional, Sine Amplitude Converter

VTM Current Multiplier
VTM48 E x040y 050 B0R
S
C NRTL US
High Efficiency, Bi-directional, Sine Amplitude Converter™
FEATURES
• 48 Vdc to 4 Vdc 50 A bi-directional current multiplier
• Can power a load connected to either the primary or
secondary side
• High efficiency (>94%) reduces system power
consumption
• High density (170 A/in³)
• “Full Chip” VI Chip^® package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features against:
- 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
+IN
Enable
-IN
PRM A
+OUT
-OUT
+OUT
-OUT
PRM B
+IN
Enable
-IN
+PRI
-PRI
VTM^®
+SEC
-SEC
Battery
DESCRIPTION
The VI Chip^® bi-directional current multiplier is a Sine Amplitude
Converter™ (SAC™) operating from a 26 to 55 Vdc primary
source or a 2.2 to 4.6 Vdc secondary source to power a load.
The bi-directional Sine Amplitude Converter isolates and
transforms voltage at a secondary:primary ratio of 1/12. The
SAC offers a low AC impedance beyond the bandwidth of most
downstream regulators; therefore for a step-down conversion;
capacitance normally at the load can be located at the source to
the Sine Amplitude Converter to enable a reduction in size of
capacitors. Since the K factor of the VTM48EF040T050B0R is
1/12, the capacitance value on the primary side can be reduced
by a factor of 144 in an application where the source is located
on the primary side, resulting in savings of board area, materials
and total system cost.
The VTM48EF040T050B0R 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 VTM48EF040T050B0R increases
overall system efficiency and lowers operating costs compared
to conventional approaches.
The VTM48EF040T050B0R enables the utilization of Factorized
Power Architecture™ which provides efficiency and size
benefits by lowering conversion and distribution losses and
promoting high density point of load conversion.
V_PRI = 26 to 55 V
V_SEC = 2.2 to 4.6 V (NO LOAD)
I_SEC = 50 A (NOM)
K = 1/12
PART NUMBERING
PART NUMBER
PACKAGE STYLE PRODUCT GRADE
VTM48E x 040 y 050B0R ^{F = J-Lead}
T = -40 to 125°C
T = Through hole M = -55 to 125°C
For Storage and Operating Temperatures see Section 6.0 General Characteristics
VTM^® Current Multiplier
Page 1 of 19
Rev 1.2
07/2015
vicorpower.com
800 927.9474