Specifications (continued)
Output (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
7.60
7.30
0
Typ
Max
11.0
10.7
240
Unit
Vdc
Vdc
W
Note
No load
Output voltage
Full load
40 - 55 VIN
38 - 55 VIN
Output power
0
227
W
Rated DC current
0
31.5
Adc
POUT ≤ 240 W
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
Peak repetitive power
360
10
W
%
Current share accuracy
Efficiency
5
See Parallel Operation on Page 10
Half load
95.5
95.5
96.2
96.2
1.6
%
%
See Figure 5
See Figure 5
Full load
Internal output inductance
Internal output capacitance
Load capacitance
Output overvoltage set point
Output ripple voltage
No external bypass
10 µF bypass capacitor
Short circuit protection set point
Average short circuit current
Effective switching frequency
Line regulation
nH
µF
55
Effective value
1,600
200
µF
11.0
Vdc
Module will shut down
176
17
mVp-p
mVp-p
Adc
See Figures 7 and 9
See Figure 8
33
3.0
Module will shut down
0.43
3.1
A
3.4
MHz
Fixed, 1.6 MHz per phase
•
K
0.1980
1/5
8.9
0.2020
12.0.
VOUT = K VIN at no load
Load regulation
ROUT
mΩ
Transient response
Voltage overshoot
Response time
92
200
1
mV
ns
100% load step; See Figures 10 and 11
See Figures 10 and 11
Recovery time
µs
See Figures 10 and 11
Output overshoot
Input turn on
0
0
mV
mV
No output filter; See Figure 3
No output filter; See Figure 2
PC enable
Output turn on delay
From application of power
From release of PC pin
288
70
ms
ms
No output filter; See Figure 3
No output filter
Output Waveforms
Efficiency vs. Output Power
Power Dissipation
98
96
94
92
90
88
86
84
10
9
8
7
6
5
4
3
2
0
24
48
72
96
120 144 168 192 216 240
0
24
48
72
96 120 144 168 192 216 240
Output Power (W)
Output Power (W)
Figure 5 — Efficiency vs. output power
vicorpower.com
Figure 6 — Power dissipation as a function of output power
BCM™ Bus Converter B048F096T24
800-735-6200
Rev. 4.9
Page 3 of 12
VICOR [ VICOR CORPORATION ]
