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V048K015T80 Datasheet(PDF) 3 Page - Vicor Corporation

Part No. V048K015T80
Description  VI Chip - VTM Voltage Transformation Module
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Maker  VICOR [Vicor Corporation]
Homepage  http://www.vicorpower.com
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V048K015T80 Datasheet(HTML) 3 Page - Vicor Corporation

 
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Vicor Corporation Tel: 800-735-6200 vicorpower.com
V•I Chip Voltage Transformation Module
Rev. 1.6
Page 3 of 20
45
PRELIMIN
ARY
Specifications, continued
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
47
70
mV
See Figs.7 and 10
200µF bypass capacitor
2
mV
See Fig.8
Average short circuit current
200
mA
Effective switching frequency
2.5
3.0
3.6
MHz
Fixed, 1.5 MHz per phase
Line regulation
K
0.0309
1/32
0.0316
VOUT=K•VIN at no load
Load regulation
ROUT
1.3
1.5
m
See Figs.9 and 27
Transient response
Voltage undershoot
10
mV
0-80A load step with 100µF CIN; See Figs.11 and 12
Voltage overshoot
26
mV
80-0A load step with 100µF CIN
Response time
200
ns
See Figs.11 and 12
Recovery time
1
µs
See Figs.11 and 12
Output overshoot
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 (Conditions are at nominal line, full load, and 25°C ambient unless otherwise specified)
Efficiency vs. Output Current
Output Current (A)
85
86
87
88
89
90
91
92
93
94
95
816
24
32404856
647280
Figure 5— Efficiency vs. output current at 1.5V VOUT
Power Dissipation vs. Output Current
Output Current (A)
0
2
4
6
8
10
12
816
24
32
40
485664
7280
Figure 6—Power dissipation as a function of output current at
1.5V VOUT
OUTPUT WAVEFORMS


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