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VTM 48 E x 120 y 025A00
VTM
TM
S
Current Multiplier
C
?
US
C
NRTL
US
FEATURES
? 48 Vdc to 12 Vdc 25 A current multiplier
- Operating from standard 48 V or 24 V PRM TM regulators
? High efficiency (>96%) reduces system power
consumption
? High density (85 A/in 3 )
? “Full Chip” V ? I Chip package enables surface mount,
low impedance interconnect to system board
? Contains built-in protection features:
DESCRIPTION
The V ? I Chip TM current multiplier is a high efficiency (>96%)
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
VTM48EF120T025A00 is 1/4, the capacitance value can be
reduced by a factor of 16, resulting in savings of board area,
materials and total system cost.
-
-
-
Overvoltage Lockout
Overcurrent
Short Circuit
The VTM48EF120T025A00 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
- 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
enhanced thermal management due to a large thermal
interface area and superior thermal conductivity. The high
conversion efficiency of the VTM48EF120T025A00 increases
overall system efficiency and lowers operating costs compared
to conventional approaches.
The VTM48EF120T025A00 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.
? High End Computing Systems
? Automated Test Equipment
? High Density Power Supplies
? Communications Systems
V IN = 26 to 55 V
V OUT = 6.5 to 13.8 V ( NO LOAD )
PART NUMBERING
I OUT = 25 A ( NOM )
K = 1/4
PART NUMBER
VTM 48 E x 120 y 025A00
PACKAGE STYLE
F = J-Lead
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
TYPICAL APPLICATION
Regulator
VC
Voltage Transformer
TM
PR
PC
TM
SG
OS
CD
VC
PC
L
PRM
VTM
IL
TM
Regulator
+In +Out
TM
Transformer
+In +Out
O
A
( See  Application Note AN:024 )
V IN
D
-In
-Out
-In
-Out
Factorized Power Architecture TM
Rev. 3.1
V?I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
2/2011
Page 1 of 18
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相关PDF资料
VTM48FH060M020A00 HALF-CHIP VTM CURRENT MULTIPLIER
VY2682M59Y5US6TV7 CAP CER 6800PF 300V 20% RADIAL
W1X223MCVCP0KR CAP CER 0.022UF 275V 20% RADIAL
W2H11A2218AT1F CAP FEEDTHRU 220PF 100V NP0 0805
W3A4ZC224KAT2A CAP ARRAY 4CH 0.22UF 10V 0612
W3F15C4728AT1F CAP FEEDTHRU 4700PF 50V X7R 1206
W3L16C225KAT1A CAP CER 2.2UF 6.3V 10% X7R 0612
WBR40-350A CAP ALUM 40UF 350V AXIAL
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