Specifications
(continued)
Output (Conditions are at 352 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Output voltage
Output power
Rated DC current
Peak repetitive power
Current share accuracy
Min
10.3
9.97
0
0
Typ
5
Max
11.4
11.1
300
28
450
10
Unit
Vdc
Vdc
W
Adc
W
%
Note
No load
Full load
354 - 365 V IN
P OUT ≤ 300 W
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
See Parallel Operation on Page 10
Efficiency
Half load
Full load
Internal output inductance
Internal output capacitance
94.0
94.5
94.8
95.5
1.1
37
%
%
nH
μF
See Figure 5
See Figure 5
Effective value
Load capacitance
Output overvoltage setpoint
Output ripple voltage
11.4
1,200
μF
Vdc
No external bypass
10 μF bypass capacitor
Short circuit protection set point
Average short circuit current
45.0
270
10.2
13.7
400
mV p-p
mV p-p
Adc
mA
See Figures 7 and 9
See Figure 8
Module will shut down
Effective switching frequency
3.7
3.9
4.1
MHz
Fixed, 2.0 MHz per phase
Line regulation
K
0.0309
1/32
0.0316
VOUT = K?V IN at no load
Load regulation
R OUT
9.8
12.5
m Ω
Transient response
Voltage overshoot
Response time
Recovery time
72
200
1
mV
ns
μs
100% load step; See Figures 10 and 11
See Figures 10 and 11
See Figures 10 and 11
Output overshoot
Input turn-on
PC enable
0
0
mV
mV
No output filter; See Figure 3
No output filter; See Figure 2
Output turn-on delay
From application of power
From release of PC pin
428
37
ms
μs
No output filter; See Figure 3
No output filter
Output Waveforms
96
94
92
Efficiency vs. Output Power
16
14
12
Power Dissipation
90
10
88
86
84
82
8
6
4
0
30
60
90
120
150
180
210
240
270
300
0
30
60
90
120
150
180
210
240
270
300
Output Power (W)
Figure 5 — Efficiency vs. output power at 352 Vin
Output Power (W)
Figure 6 — Power dissipation as a function of output power
vicorpower.com
800-735-6200
V?I Chip Bus Converter
BCM352F110T300A00 & BCM352T110T300A00
Rev. 1.6
Page 3 of 11
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