B048K120T10 Datasheet, PDF (3/16 Pages) Vicor Corporation – VI Chip - BCM Bus Converter 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
8.3
A
Peak repetitive current
12.5
A
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
DC current limit
8.3
10.5
13.1
A
Current share accuracy
5
10
%
See Parallel Operation on page 11
Efficiency
Half load
95.0
95.5
%
See Fig.5
Full load
95.0
96.5
%
See Fig.5
Internal output inductance
1.6
nH
Internal output capacitance
7
µF
Effective value
Load capacitance
1000
µF
Output overvoltage setpoint
14.5
V
P R E L I M I N A RY Outputripplevoltage
No external bypass
1µF 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
70
135
mV
6
mV
200
mA
2.8
3.5
4.2
MHz
0.245
1/4
0.255
32
mΩ
140
mV
96
mV
200
ns
1
µs
See Figs.7 and 10
See Fig.8
Fixed, 1.75 MHz per phase
VOUT=K•VIN at no load
See Figs.9 and 28
0-8.3A load step, w/Cin =100µF, see Fig.11
8.3 -0A load step, w/Cin =100µF, see Fig.12
See Figs.11 and 12
See Figs.11 and 12
Input turn-on
0
mV
No output filter; See Fig.2
PC enable
0
mV
No output filter; See Fig.3
Output turn-on delay
From application of power
180
300
ms
See Fig.3
From release of PC pin
320
410
µs
See Fig.2
OUTPUT WAVEFORMS
Efficiency vs. Output Power
98
96
94
92
90
88
86
84
0
10
20
30
40
50
60
70
80
90
100
Output Power (W)
Figure 5— Efficiency vs. output power at nominal VIN
4
3.5
3
2.5
2
1.5
1
0.5
0
0
10
20
Power Dissipation
30
40
50
60
70
Output Power (W)
80
90
100
Figure 6—Power dissipation as a function of output power
45 Vicor Corporation
Tel: [phone]
vicorpower.com
V•I Chip Bus Converter
B048K120T10
Rev. 1.2
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