BCM380x475y1K2A3z
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted;
Boldface
specifications apply over the temperature range of -40°C
≤
T
INTERNAL
≤
125°C (T-Grade); All other specifications are at T
INTERNAL
= 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
V
SEC_DC
V
SEC_DC
= 47.5 V, T
INTERNAL
= 25ºC
SEC to PRI No Load Power
Dissipation
P
SEC_NL
V
SEC_DC
= 47.5 V
V
SEC_DC
= 32.5 V to 51.25 V, T
INTERNAL
= 25ºC
V
SEC_DC
= 32.5 V to 51.25 V
DC Secondary Input Current
Primary Ouptut Power (continuous)
Primary Output Power (pulsed)
Primary Output Current (continuous)
Primary Output Current (pulsed)
I
SEC_IN_DC
P
PRI_OUT_DC
P
PRI_OUT_PULSE
I
PRI_OUT_DC
I
PRI_OUT_PULSE
10 ms pulse, 25% Duty cycle,
I
PRI_OUT_AVG
= 50% rated I
PRI_OUT_DC
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 3.2 A
SEC to PRI Efficiency (ambient)
η
AMB
η
HOT
η
20%
R
PRI_COLD
SEC to PRI Output Resistance
R
PRI_AMB
R
PRI_HOT
Primary Output Voltage Ripple
V
PRI_OUT_PP
V
SEC_DC
= 32.5 V to 51.25 V, I
PRI_OUT_DC
= 3.2 A
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 1.6 A
SEC to PRI Efficiency (hot)
SEC to PRI Efficiency (over load
range)
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 3.2 A
0.64 A < I
PRI_OUT_DC
< 3.2 A
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 3.2 A, T
INTERNAL
= -40°C
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 3.2 A
V
SEC_DC
= 47.5 V, I
PRI_OUT_DC
= 3.2 A, T
INTERNAL
= 100°C
C
PRI_OUT_EXT
= 0
µF,
I
PRI_OUT_DC
= 3.2 A,
V
SEC_DC
= 47.5 V, 20 MHz BW
T
INTERNAL
≤
100ºC
97.1
96.4
97.2
96.5
92
1800
2200
2700
1950
2400
2950
1600
2400
2100
2600
3200
mV
mΩ
97.7
97
%
%
97.6
%
At I
PRI_DC
= 3.2 A, T
INTERNAL
≤
100ºC
Specified at V
SEC_DC
= 51.25 V
Specified at V
SEC_DC
= 51.25 V; 10 ms pulse,
25% Duty cycle, P
PRI_AVG
= 50% rated P
PRI_OUT_DC
5.9
32.5
9
51.25
12
16
15
20
26
1200
1500
3.2
4
A
W
W
A
A
W
V
BCM
®
Bus Converter
Page 7 of 25
Rev 1.7
07/2015
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