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Not Recommended for New Designs - Replaced by VTM48Ex240y012A00
VTM ? Current Multiplier
V048F240T012
V 048 F 240 M 012
S
C
NRTL
US
High Efficiency, Sine Amplitude Converter ?
? 48 V to 24 V VI Chip ? Converter
? 12.5 A (18.8 A for 1 ms)
? High density – 1017 W/in 3
? 125°C operation (T J )
? 1 μs transient response
? 3.5 million hours MTBF
V F = 28 - 53 V
V OUT = 13.8 - 26.5 V
I OUT = 12.5 A
R OUT = 60.0 m ? max
? Small footprint – 260 W/in 2
? Low weight – 0.5 oz (15 g)
? Typical efficiency 96%
? No output filtering required
K = 1/2
?
? Pick & Place / SMD
or Through hole
Product Description
Absolute Maximum Ratings
The V048F240T012 VI Chip ? current multiplier excels at
speed, density and efficiency to meet the demands of
advanced power applications while providing isolation
from input to output. It achieves a response time of less
than 1 μs and delivers up to 12.5 A in a volume of less
than 0.295 in 3 with unprecedented efficiency. It may be
paralleled to deliver higher power levels at an output
voltage settable from 13.8 to 26.5 Vdc.
The VTM V048F240T012’s nominal output voltage is
24 Vdc from a 48 Vdc input Factorized Bus, V F , and is
controllable from 13.8 to 26.5 Vdc at no load, and from
13.0 to 25.8 Vdc at full load, over a V F input range of 28
to 53 Vdc. It can be operated either open- or closed-loop
depending on the output regulation needs of the
Parameter
+In to -In
PC to -In
VC to -In
+Out to -Out
Isolation voltage
Output current
Peak output current
Output power
Peak output power
[a]
Case temperature during reflow
Values
-1.0 to 60
100
-0.3 to 7.0
-0.3 to 19.0
-0.5 to 50
2,250
12.5
18.8
323
484
225
245
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
A
W
W
°C
°C
Notes
For 100 ms
Input to output
Continuous
For 1 ms
Continuous
For 1 ms
MSL 5
MSL 6, TOB = 4 hrs
application. Operating open-loop, the output voltage
tracks its V F input voltage with a transformation ratio,
K = 1/2 , for applications requiring an isolated output
voltage with high efficiency. Closing the loop back to an
input PRM ? regulator or DC-DC converter enables tight
Operating junction temperature
Storage temperature
[b]
-40 to 125
-55 to 125
-40 to 125
-65 to 125
°C
°C
°C
°C
T-Grade
M-Grade
T-Grade
M-Grade
load regulation.
The 24 V VTM module achieves a power density
of 1017 W/in 3 in a VI Chip package compatible with
standard pick-and-place and surface mount assembly
processes. The VTM modules fast dynamic response and
low noise eliminate the need for bulk capacitance at the
Notes:
[a] 245°C reflow capability applies to product with manufacturing date code 1001 and greater.
[b] The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by a shutdown comparator.
Part Numbering
load, substantially increasing system density while
improving reliability and decreasing cost.
V
048
F
240
T
012
VTM?
Module
Input Voltage
Designator
Output Voltage
Designator
(=V OUT x10)
Output Current
Designator
(=I OUT )
Configuration
Product Grade Temperatures (°C)
F = J-lead
T = Through hole
Grade
T
M
Storage Operating (T J )
-40 to125 -40 to125
-65 to125 -55 to125
VTM ? Current Multiplier
Page 1 of 11
Rev 2.9
01/2014
vicorpower.com
800 927.9474
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