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Vicor Corporation
Vicor Corporation

V048F040M050 Datasheet Preview

V048F040M050 Datasheet

(V048F040x050) Voltage Transformation Module

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VTM
PRELIMINARY
V048F040T050
V•I ChipTM – VTM
Voltage Transformation Module
• 48 V to 4 V V•I Chip Converter
• 50 A (75 A for 1 ms)
• High density – 182 A/in3
• Small footprint – 45 A/in2
• Low weight – 0.5 oz (14 g)
• Pick & Place / SMD
• 125°C operation
• 1 µs transient response
• 3.5 million hours MTBF
• Typical efficiency 94%
• No output filtering required
Vf = 26 - 55 V
VOUT = 2.17 - 4.58 V
IOUT = 50 A
K = 1/12
ROUT = 3.9 mΩ max
©
Actual size
Product Description
The V048F040T050 V•I Chip Voltage Transformation
Module (VTM) 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 50 A in a volume of less than 0.274 in3 with
unprecedented efficiency. It may be paralleled to deliver
higher power levels at an output voltage settable from
2.17 to 4.58 Vdc.
The VTM V048F040T050’s nominal output voltage is 4
Vdc from a 48 Vdc input Factorized Bus, Vf, and is
controllable from 2.17 to 4.58 Vdc at no load, and from
1.98 to 4.40 Vdc at full load, over a Vf input range of 26
to 55 Vdc. It can be operated either open- or closed-loop
depending on the output regulation needs of the
application. Operating open-loop, the output voltage
tracks its Vf input voltage with a transformation ratio,
K = 1/12, for applications requiring an isolated output
voltage with high efficiency. Closing the loop back to an
input Pre-Regulation Module (PRM) or DC-DC converter
enables tight load regulation.
The 4 V VTM achieves a current density of 182 A/in3 in
a V•I Chip package compatible with standard pick-and-
place and surface mount assembly processes. The VTM’s
fast dynamic response and low noise eliminate the
need for bulk capacitance at the load, substantially
increasing system density while improving reliability
and decreasing cost.
Absolute Maximum Ratings
Parameter
+In to -In
+In to -In
PC to -In
VC to -In
+Out to -Out
Isolation voltage
Output current
Peak output current
Output power
Peak output power
Case temperature
Values
-1.0 to 60
100
-0.3 to 7.0
-0.3 to 19.0
-0.5 to 12
2,250
50
75
220
330
208
Operating junction temperature(1)
-40 to 125
-55 to 125
Storage temperature
-40 to 150
-65 to 150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
A
W
W
°C
°C
°C
°C
°C
Notes
For 100 ms
Input to Output
Continuous
For 1 ms
Continuous
For 1 ms
During reflow
T - Grade
M - Grade
T - Grade
M - Grade
Note:
(1) The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by a shutdown comparator.
Part Numbering
V 048
Voltage
Transformation
Module
Input Voltage
Designator
F
Configuration Options
F = On-board (Figure 10)
040
Output Voltage
Designator
(=VOUT x10)
T
050
Output Current
Designator
(=IOUT)
Product Grade Temperatures (°C)
Grade Storage Operating
T -40 to150 -40 to125
M -65 to150 -55 to125
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 1 of 13



Vicor Corporation
Vicor Corporation

V048F040M050 Datasheet Preview

V048F040M050 Datasheet

(V048F040x050) Voltage Transformation Module

No Preview Available !

V048F040M050 pdf
Electrical Specifications
PRELIMINARY
V•I Chip Voltage Transformation Module
Input Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Input voltage range
Input dV/dt
Input overvoltage turn-on
Input overvoltage turn-off
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
Min Typ Max Unit
Note
26 48 55 Vdc Operable down to zero V with VC voltage applied
1 V/µs
55.0 Vdc
59.0 Vdc
4.6 Adc
114
mA p-p
Using test circuit in Figure 14; See Figure 1
4.10 5.10
W
1.9 µF
5 nH
Output Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Output voltage
Rated DC current
Peak repetitive current
Short circuit protection set point
Current share accuracy
Efficiency
Half load
Full load
Internal output inductance
Internal output capacitance
Output overvoltage setpoint
Output ripple voltage
No external bypass
47 µF bypass capacitor
Effective switching frequency
Line regulation
K
Load regulation
ROUT
Transient response
Voltage overshoot
Response time
Recovery time
Min
2.17
1.98
0
59.8
93.4
93.1
4.6
2.40
0.0825
Typ Max
4.58
4.40
50
75
5 10
94.8
94.4
1.1
255
216
8
2.55
1/12
3.3
110
200
1
290
2.70
0.0842
3.9
Unit
Vdc
Vdc
Adc
A
Adc
%
%
%
nH
µF
Vdc
mV
mV
MHz
mΩ
mV
ns
µs
Note
No load
Full load
26 - 55 VIN
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
Module will shut down
See Parallel Operation on Page 8
See Figure 3
See Figure 3
Effective value
Module will shut down
See Figures 2 and 5
See Figure 6
Fixed, 1.3 MHz per phase
VOUT = K•VIN at no load
See Figure 17
50 A load step with 100 µF CIN; See Figures 7 and 8
See Figures 7 and 8
See Figures 7 and 8
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 2 of 13


Part Number V048F040M050
Description (V048F040x050) Voltage Transformation Module
Maker Vicor Corporation
Total Page 13 Pages
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