DatasheetBay.com



V048F015T80 (Vicor Corporation) : Total 20 Pages

No Preview Available !

[ Download PDF for PC ]

www.DataSheet4U.com
V•I ChipTM – VTM
Voltage Transformation Module
• 48V to 1.5V V•I Chip Converter
• 80 A (120 A for 1 ms)
• High density – up to 320 A/in3
• Small footprint – 80 A/in2
• Low weight – 0.4 oz (12 g)
• Pick & Place / SMD
• >92% efficiency at 1.5V
• 125°C operation
• 1 µs transient response
• >3.5 million hours MTBF
• No output filtering required
• V•I Chip BGA package
V048K015T801
Vf = 32 - 57.6 V
VOUT = 1.0 - 1.8 V
IOUT = 80 A
K = 1/32
ROUT = 1.5 mmax
©
Actual size
Product Description
Absolute Maximum Ratings
The V048K015T80 VI Chip Voltage Transformation
Module (VTM) breaks records for speed, density and
Parameter
Values
Unit
Notes
efficiency to meet the demands of advanced DSP,
FPGA, ASIC, processor cores and microprocessor
applications at the point of load (POL) while providing
+In to -In
+In to -In
-1.0 to 60.0
Vdc
100 Vdc For 100 ms
isolation from input to output. It achieves a response
PC to -In
-0.3 to 7.0
Vdc
time of less than 1 µs and delivers up to 80A in a
TM to -In
-0.3 to 7.0
Vdc
volume of less than 0.25 in3 while converting 48 V to
1.5 V with unprecedented efficiency. It may be
paralleled to deliver hundreds of amps at an output
voltage settable from 1.0 to 1.8 Vdc.
P R E L I M I N A RYThe VTM V048K015T80’s nominal output voltage is
1.5 Vdc from a 48 Vdc input factorized bus, Vf, and is
controllable from 1.0 to 1.8 Vdc at no load, and from
0.9 V to 1.7 V at full load, over a Vf input range of 32 to
57.6 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=1/32, and an output resistance, ROUT =1.3 milliohm,
to enable applications requiring a programmable low
output voltage at high current and high efficiency.
SG to -In
+Out to -Out
Isolation voltage
Operating junction temperature
Output current
Peak output current
Case temperature during reflow
Storage temperature
Output power
Peak output power
Thermal Resistance
500
-0.5 to 5.0
1500
-40 to 125
80
120
208
-40 to 150
144
216
mA
Vdc
Vdc Input to Output
°C See note 2
A Continuous
A For 1 ms
°C
°C
W Continuous
W For 1 ms
Closing the loop back to an input Pre-Regulation
Module (PRM) or DC-DC converter may be used to
Symbol Parameter
Typ Max Units
compensate for ROUT.
RθJC
Junction-to-case
1.1 1.5 °C/W
The 1.5V VTM achieves break-through current density
of 320 A/in3 in a VI Chip package compatible with
standard pick-and-place and surface mount assembly
processes. The VI Chip BGA package supports in-board
mounting with a low profile of 0.16" (4mm) over the
board. A J-lead package option supports on-board
surface mounting with a profile of only 0.25" (6mm)
over the board. The VTM’s fast dynamic response and
low noise eliminate the need for bulk capacitance at the
load, substantially increasing the POL density while
improving reliability and decreasing cost.
RθJB
RθJA
RθJA
Junction-to-BGA
Junction-to-ambient 3
Junction-to-ambient 4
2.1 2.5 °C/W
6.5 7.2 °C/W
5.0 5.5 °C/W
Notes
1. For complete product matrix, see chart on page 10.
2. The referenced junction is defined as the semiconductor having the highest temperature. This
temperature is monitored by the temperature monitor (TM) signal and by a shutdown comparator.
3. V048K015T80 surface mounted in-board to a 2" x 2" FR4 board, 4 layers 2 oz Cu, 300 LFM.
4. V048L015T80 (0.25"H integral Pin Fins) surface mounted on FR4 board, 300 LFM.
45 Vicor Corporation Tel: 800-735-6200 vicorpower.com
V•I Chip Voltage Transformation Module Rev. 1.6
Page 1 of 20



No Preview Available !

[ Download PDF for PC ]

Specifications
INPUT (Conditions are at nominal line, full load, and 25°C ambient unless otherwise specified)
Parameter
Input voltage range
Input dV/dt
P R E L I M I N A RYInputundervoltageturn-on
Input undervoltage turn-off
Input overvoltage turn-on
Input overvoltage turn-off
Input quiescent current
Inrush current overshoot
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
Min Typ Max Unit
Note
32 48 57.6 V
10 V/µs
32 V
29.5 V
57.6 V
59.0 V
2.0 2.4 mA
PC low
0.7 A Using test circuit in Fig.24; See Fig.1
2.7 A
28
mA p-p
Using test circuit in Fig.24; See Fig.4
2.5 3.5
W
1 µF
20 nH
Recommended external input capacitance
8
100
µF 200 nH maximum source inductance; See Fig.24
INPUT WAVEFORMS
Figure 1— Inrush transient current at no load and nominal VIN
with PC enabled
Figure 2— Output voltage turn-on waveform with PC enabled
at full load and nominal VIN
Figure 3—Output voltage turn-on waveform with input turn-on
at full load and nominal VIN
Figure 4— Input reflected ripple current at full load and
nominal VIN
45 Vicor Corporation Tel: 800-735-6200 vicorpower.com
V•I Chip Voltage Transformation Module Rev. 1.6
Page 2 of 20



No Preview Available !

[ Download PDF for PC ]

Specifications, continued
OUTPUT (Conditions are at nominal line, full load, and 25°C ambient unless otherwise specified)
Parameter
Min Typ Max Unit
Note
Rated DC current
0 80 A
Peak repetitive current
120 A
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
DC current limit
80 95 120 A
Current share accuracy
5 10 % See Parallel Operation on page 11
Efficiency
Half load
93.0 93.8
% See Fig.5
Full load
90.8 91.7
% See Fig.5
Internal output inductance
1.6 nH
Internal output capacitance
300 µF Effective value
Load capacitance
100,000
µF
Output overvoltage setpoint
1.83 V
Output ripple voltage
No external bypass
200µF bypass capacitor
Average short circuit current
P R E L I M I N A RYEffectiveswitchingfrequency
Line regulation
K
Load regulation
ROUT
Transient response
Voltage undershoot
Voltage overshoot
Response time
Recovery time
Output overshoot
47 70 mV
2 mV
200 mA
2.5 3.0 3.6 MHz
0.0309 1/32 0.0316
1.3 1.5 m
10 mV
26 mV
200 ns
1 µs
See Figs.7 and 10
See Fig.8
Fixed, 1.5 MHz per phase
VOUT=K•VIN at no load
See Figs.9 and 27
0-80A load step with 100µF CIN; See Figs.11 and 12
80-0A load step with 100µF CIN
See Figs.11 and 12
See Figs.11 and 12
Input turn-on
0 mV
PC enable
0 mV
Output turn-on delay
From application of power
170 250
ms
No output filter; See Fig.3
From release of PC pin
300 µs No output filter; See Fig.2
OUTPUT WAVEFORMS
Efficiency vs. Output Current
95
94
93
92
91
90
89
88
87
86
85
8 16 24 32 40 48 56 64 72
Output Current (A)
Figure 5— Efficiency vs. output current at 1.5V VOUT
80
Power Dissipation vs. Output Current
12
10
8
6
4
2
0
8 16 24 32 40 48 56 64 72 80
Output Current (A)
Figure 6—Power dissipation as a function of output current at
1.5V VOUT
45 Vicor Corporation Tel: 800-735-6200 vicorpower.com
V•I Chip Voltage Transformation Module Rev. 1.6
Page 3 of 20



No Preview Available !

[ Download PDF for PC ]

Specifications, continued
PRELIMINARY
Figure 7— Output voltage ripple at full load and nominal VIN;
without any external bypass capacitor.
Figure 8—Output voltage ripple at full load and nominal VIN
with 200 µF ceramic external bypass capacitance.
TBD
Figure 9— Output impedance vs. frequency
Output Ripple vs. Load
50
45
40
35
30
25
20
15
10
5
0
8 16 24 32 40 48 56 64 72 80
Output Current (A)
Figure 10— Output voltage ripple vs. output current at nominal
line with no POL bypass capacitance.
Figure 11— 0-80A step load change with 100 µF input
capacitance and no output capacitance.
Figure 12— 0-80A step load change with 100 µF input
capacitance and 100 µF output capacitance.
45 Vicor Corporation Tel: 800-735-6200 vicorpower.com
V•I Chip Voltage Transformation Module Rev. 1.6
Page 4 of 20






[ Download PDF for PC ]






0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
* 2015 :: DatasheetBay.com :: DatasheetBay