BCM384x120y1K5ACz
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of -40°C ≤ TINTERNAL
≤ 125°C (T-Grade); All other specifications are at TINTERNAL = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
General Powetrain SECONDARY to PRIMARY Specification (Reverse Direction)
Secondary Input Voltage range,
continuous
VSEC_DC
8.1
12.8
V
VSEC_DC = 12 V, TINTERNAL = 25ºC
VSEC_DC = 12 V
11
17
25
5.9
SEC to PRI No Load Power
Dissipation
PSEC_NL
W
VSEC_DC = 8.1 V to 12.8 V, TINTERNAL = 25ºC
VSEC_DC = 8.1 V to 12.8 V
19
20
DC Secondary Input Current
ISEC_IN_DC
At IPRI_DC = 3.9 A, TINTERNAL ≤ 100ºC
Specified at VSEC_DC = 12.8 V
127
1500
A
Primary Ouptut Power (continuous)
PPRI_OUT_DC
W
Specified at VSEC_DC = 12.8 V; 10 ms pulse,
25% Duty cycle, PPRI_AVG = 50% rated PPRI_OUT_DC
Primary Output Power (pulsed)
Primary Output Current (continuous)
Primary Output Current (pulsed)
PPRI_OUT_PULSE
IPRI_OUT_DC
2000
3.9
W
A
10 ms pulse, 25% Duty cycle,
IPRI_OUT_AVG = 50% rated IPRI_OUT_DC
IPRI_OUT_PULSE
5.2
A
VSEC_DC = 12 V, IPRI_OUT_DC = 3.9 A
VSEC_DC = 8.1 V to 12.8 V, IPRI_OUT_DC= 3.9 A
VSEC_DC = 12 V, IPRI_OUT_DC = 1.95 A
VSEC_DC = 12 V, IPRI_OUT_DC = 3.9 A
96.2
95.2
96.5
96.2
97
SEC to PRI Efficiency (ambient)
SEC to PRI Efficiency (hot)
ηAMB
%
97.4
97
ηHOT
η20%
%
%
SEC to PRI Efficiency (over load
range)
0.78 A < IPRI_OUT_DC < 3.9 A
90
RPRI_COLD
RPRI_AMB
RPRI_HOT
VSEC_DC = 12 V, IPRI_OUT_DC = 3.9 A, TINTERNAL = -40°C
VSEC_DC = 12 V, IPRI_OUT_DC = 3.9 A
2100
2500
2900
2400
2700
3150
2700
2900
3400
SEC to PRI Output Resistance
Primary Output Voltage Ripple
mΩ
VSEC_DC = 12 V, IPRI_OUT_DC = 3.9 A, TINTERNAL = 100°C
CPRI_OUT_EXT = 0 µF, IPRI_OUT_DC = 3.9 A,
6250
VSEC_DC = 12 V, 20 MHz BW
VPRI_OUT_PP
mV
TINTERNAL ≤ 100ºC
9600
BCM® Bus Converter
Page 7 of 25
Rev 1.5
vicorpower.com
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07/2015
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