BCM400x500y1K8A3z
Electrical Specifications
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 PRIMARY to SECONDARY Specification (Forward Direction)
Primary Input Voltage range,
continuous
VPRI_DC
260
410
V
V
VPRI_DC voltage where µC is initialized,
(ie VAUX = Low, powertrain inactive)
VPRI µController
VµC_ACTIVE
120
Disabled, EN Low, VPRI_DC = 400 V
TINTERNAL ≤ 100ºC
2
PRI to SEC Input Quiescent Current
IPRI_Q
mA
4
VPRI_DC = 400 V, TINTERNAL = 25ºC
VPRI_DC = 400 V
10
14
21
15
22
PRI to SEC No Load Power
Dissipation
6
PPRI_NL
W
VPRI_DC = 260 V to 410 V, TINTERNAL = 25 ºC
VPRI_DC = 260 V to 410 V
VPRI_DC = 410 V, CSEC_EXT = 100 µF, RLOAD_SEC = 50% of
6
full load current
PRI to SEC Inrush Current Peak
IPRI_INR_PK
A
TINTERNAL ≤ 100ºC
12
DC Primary Input Current
Transformation Ratio
IPRI_IN_DC
K
At ISEC_OUT_DC = 35 A, TINTERNAL ≤ 100ºC
Primary to secondary, K = VSEC_DC / VPRI_DC, at no load
4.5
A
1/8
V/V
Secondary Output Power
(continuous)
PSEC_OUT_DC
PSEC_OUT_PULSE
ISEC_OUT_DC
Specified at VPRI_DC = 410 V
1750
2000
35
W
W
A
Specified at VPRI_DC = 410 V; 10 ms pulse, 25% Duty
cycle, PSEC_AVG = 50% rated PSEC_OUT_DC
Secondary Output Power (pulsed)
Secondary Output Current
(continuous)
10 ms pulse, 25% Duty cycle, ISEC_OUT_AVG = 50% rated
ISEC_OUT_DC
Secondary Output Current (pulsed)
ISEC_OUT_PULSE
40
A
VPRI_DC = 400 V, ISEC_OUT_DC = 35 A
VPRI_DC = 260 V to 410 V, ISEC_OUT_DC = 35 A
VPRI_DC = 400 V, ISEC_OUT_DC = 17.5 A
VPRI_DC = 400 V, ISEC_OUT_DC = 35 A
96.9
95.7
97.5
96.3
97.4
PRI to SEC Efficiency (ambient)
PRI to SEC Efficiency (hot)
ηAMB
%
98
ηHOT
η20%
96.8
%
%
PRI to SEC Efficiency
(over load range)
7 A < ISEC_OUT_DC < 35 A
92
RSEC_COLD
RSEC_AMB
RSEC_HOT
FSW
VPRI_DC = 400 V, ISEC_OUT_DC = 35 A, TINTERNAL = -40°C
VPRI_DC = 400 V, ISEC_OUT_DC = 35 A
12
16
16
22.6
31
20
33
PRI to SEC Output Resistance
mΩ
VPRI_DC = 400 V, ISEC_OUT_DC = 400 A, TINTERNAL = 100°C
Frequency of the Output Voltage Ripple = 2x FSW
24
39
Switching Frequency
1.05
1.10
1.14
MHz
mV
CSEC_EXT = 0 µF, ISEC_OUT_DC = 35 A, VPRI_DC = 400 V,
250
20 MHz BW
Secondary Output Voltage Ripple
VSEC_OUT_PP
TINTERNAL ≤ 100ºC
350
Primary Input Leads Inductance
(Parasitic)
Frequency 2.5 MHz (double switching frequency),
Simulated lead model
LPRI_IN_LEADS
6.7
1.3
nH
nH
Secondary Output Leads Inductance
(Parasitic)
Frequency 2.5 MHz (double switching frequency),
Simulated lead model
LSEC_OUT_LEADS
BCM® Bus Converter
Page 5 of 25
Rev 1.4
vicorpower.com
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07/2015
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