V048K015T80 Datasheet, PDF (3/20 Pages) Vicor Corporation – VI Chip - VTM Voltage Transformation Module

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
P R E L I M I N A RY Outputripplevoltage
No external bypass
200µF bypass capacitor
Average short circuit current
Effective switching frequency
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
mΩ
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 80
Output Current (A)
Figure 5— Efficiency vs. output current at 1.5V VOUT
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: [phone] vicorpower.com}
V•I Chip Voltage Transformation Module Rev. 1.6
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