BCM
®
in a VIA Package
Bus Converter
BCM3814x60E10A5yzz
Isolated, Fixed-Ratio DC-DC Converter
Features & Benefits
•
Up to 150A continuous low voltage side current
•
Fixed transformation ratio(K) of 1/6
•
Up to
769
W/in
3
power density
V
HI
= 54V (36 – 60V)
V
LO
= 9V (6 – 10V)
(
no load
)
Product Ratings
I
LO
= up to 150A
K = 1/6
•
97.2% peak efficiency
•
Integrated ceramic capacitance filtering
•
Parallel operation for multi-kW arrays
•
OV, OC, UV, short circuit and thermal protection
•
3814 package
•
High MTBF
•
Thermally enhanced VIA™ package
•
PMBus
TM
management interface
Product Description
The BCM in a VIA package is a high efficiency Bus Converter,
operating from a 36 to 60V
DC
high voltage bus to deliver an
isolated 6 to 10V
DC
unregulated, low voltage.
This unique ultra-low profile module incorporates DC-DC
conversion, integrated filtering and PMBus™ commands and
controls in a chassis or PCB mount form factor.
The BCM offers low noise, fast transient response and industry
leading efficiency and power density. A low voltage side referenced
PMBus™ compatible telemetry and control interface provides
access to the BCM’s internal controller configuration, fault
monitoring, and other telemetry functions.
Leveraging the thermal and density benefits of Vicor’s VIA
packaging technology, the BCM module offers flexible thermal
management options with very low top and bottom side thermal
impedances.
When combined with downstream Vicor DC-DC conversion
components and regulators, the BCM allows the Power Design
Engineer to employ a simple, low-profile design which will
differentiate the end system without compromising on cost or
performance metrics.
Typical Applications
•
DC Power Distribution
•
Information and Communication
Technology (ICT) Equipment
•
High End Computing Systems
•
Automated Test Equipment
•
Industrial Systems
•
High Density Energy Systems
•
Transportation
Part Ordering Information
Max
High
Side
Voltage
60
High
Max
Side
Low
Voltage
Side
Range
Voltage
Ratio
E
10
Size:
3.76 x 1.40 x 0.37 in
95.59 x 35.54 x 9.40 mm
Max
Low
Product Grade
Side
(Case Temperature)
Current
A5
y
C = -20 to 100°C
[1]
T = -40 to 100°C
[1]
Product
Function
BCM
BCM =
Bus Converter
Module
[1]
Package
Length
38
Length in
Inches x 10
Package
Width
14
Width in
Inches x 10
Package
Type
x
B = Board VIA
V = Chassis VIA
Option Field
zz
02 = Chassis/PMBus
06 = Short Pin/PMBus
10 = Long Pin/PMBus
Internal Reference
High Temperature Current Derating may apply; See Figure 1, specified thermal operating area.
BCM
®
in a VIA Package
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BCM3814x60E10A5yzz
Typical Application
Host µC
PMBus
V
EXT
+
–
BCA_SGND
SGND
BCM in a VIA Package
EXT_BIAS
SCL
SDA
SGND
ADDR
FUSE
V
HI
BCA_SGND
}
3
BCA_SGND
+HI
C
HI
+LO
–HI
SOURCE_RTN
HV
LV
ISOLATION BOUNDRY
–LO
Non-Isolated
Point of Load
Regulators
LOAD
BCM3814x60E10A5yzz at point of load
Host µC
PMBus
V
EXT
+
–
SGND
BCA_SGND
BCA_SGND
BCM in a VIA Package
EXT_BIAS
SCL
SDA
SGND
ADDR
FUSE
V
HI
}
3
BCA_SGND
+HI
C
HI
+LO
LOAD
–HI
–LO
HV
LV
ISOLATION BOUNDRY
SOURCE_RTN
BCM3814x60E10A5yzz direct to load
BCM
®
in a VIA Package
Page 2 of 38
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800 927.9474
BCM3814x60E10A5yzz
Pin Configuration
1
+HI
10
–LO
TOP VIEW
12
–LO
3
+LO
5
6
7
8
9
+LO
4
EXT BIAS
SCL
SDA
SGND
ADDR
PMBus™
–HI
2
–LO
11
–LO
13
BCM in a 3814 VIA Package - Chassis (Lug) Mount
2
–HI
11
–LO
TOP VIEW
13
–LO
4
+LO
9
8
7
6
5
+LO
3
ADDR
SGND
SDA
SCL
EXT BIAS
PMBus™
+HI
1
–LO
10
–LO
12
BCM in a 3814 VIA Package - Board (PCB) Mount
Note:
The dot on the VIA housing indicates the location of the signal pin 9.
Pin Descriptions
Pin Number
1
2
3, 4
5
6
7
8
9
10, 11, 12, 13
Signal Name
+HI
–HI
+LO
EXT BIAS
SCL
SDA
SGND
ADDR
–LO
Type
HIGH SIDE POWER
HIGH SIDE POWER
RETURN
LOW SIDE
POWER
INPUT
INPUT
INPUT/OUTPUT
LOW SIDE
SIGNAL RETURN
INPUT
LOW SIDE
POWER RETURN
Function
Positive transformer power terminal on high voltage side
Negative transformer power terminal on high voltage side
Positive transformer power terminal on low voltage side
5V supply input
I
2
C Clock, PMBus™ Compatible
I
2
C Data, PMBus™ Compatible
Signal Ground
Address assignment - Resistor based
Negative transformer power terminal on low voltage side
Note:
All signal pins (5, 6, 7, 8, 9) are referenced to low voltage side and isolated from the high voltage side.
BCM
®
in a VIA Package
Page 3 of 38
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800 927.9474
BCM3814x60E10A5yzz
Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device.
Parameter
+HI to –HI
HI_DC or LO_DC slew rate
+LO to –LO
EXT BIAS to SGND
SCL to SGND
SDA to SGND
ADDR to SGND
Dielectric Withstand*
High Voltage Side to Case
High Voltage Side to
Low voltage Side
Low Voltage Side to Case
See note below
Basic Insulation
Basic Insulation
Functional Insulation
1500
1500
N/A
V
DC
V
DC
V
DC
-1
-0.3
Comments
Min
-1
Max
80
1
15
10
0.15
-0.3
-0.3
-0.3
5.5
5.5
3.6
Unit
V
V/µs
V
V
A
V
V
V
* The SELV side (-LO) is directly connected to the case of the BCM in a VIA package.
BCM
®
in a VIA Package
Page 4 of 38
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Electrical Specifications
Specifications apply over all line and load conditions, unless otherwise noted;
Boldface
specifications apply over the temperature range of -40°C
≤
T
CASE
≤100°C
(T-Grade); All other specifications are at T
CASE
= 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
General Powertrain High Voltage Side to Low Voltage Side Specification (Forward Direction)
High Side Input Voltage range,
continuous
V
HI
µController
HI to LO Input Quiescent Current
V
HI_DC
V
µC_ACTIVE
I
HI_Q
V
HI_DC
voltage where µC is initialized,
(powertrain inactive)
Disabled, V
HI_DC
= 54V
T
CASE
≤
100ºC
V
HI_DC
= 54V, T
CASE
= 25ºC
HI to LO No Load Power Dissipation
P
HI_NL
V
HI_DC
= 54V
V
HI_DC
= 36V to 60V, T
CASE
= 25 ºC
V
HI_DC
= 36V to 60V
HI to LO Inrush Current Peak
DC High Side Input Current
Transformation Ratio
Low Side Output Current
(continuous)
Low Side Output Current (pulsed)
I
HI_INR_PK
I
HI_IN_DC
K
I
LO_OUT_DC
I
LO_OUT_PULSE
V
HI_DC
= 60V, C
LO_EXT
= 4000 µF, R
LOAD_LO
= 20% of full
load current
T
CASE
≤
100ºC
At I
LO_OUT_DC
= 150A, T
CASE
≤
85ºC
High voltage to low voltage, K = V
LO_DC
/ V
HI_DC
, at no
load
T
CASE
≤
85°C
10 ms pulse, 25% Duty cycle, I
LO_OUT_AVG
≤
50% rated
I
LO_OUT_DC
V
HI_DC
= 54V, I
LO_OUT_DC
= 150A
HI to LO Efficiency (ambient)
ηh
AMB
ηh
HOT
ηh
20%
R
LO_COLD
HI to LO Output Resistance
R
LO_AMB
R
LO_HOT
Switching Frequency
Low Side Output Voltage Ripple
F
SW
V
LO_OUT_PP
V
HI_DC
= 36V to 60V, I
LO_OUT_DC
= 150A
V
HI_DC
= 54V, I
LO_OUT_DC
= 75A
HI to LO Efficiency (hot)
HI to LO Efficiency
(over load range)
V
HI_DC
= 54V, I
LO_OUT_DC
= 150A, T
CASE
= 85°C
30 A < I
LO_OUT_DC
< 150A
V
HI_DC
= 54V, I
LO_OUT_DC
= 150A, T
CASE
= -40°C
V
HI_DC
= 54V, I
LO_OUT_DC
= 150A
V
HI_DC
= 54V, I
LO_OUT_DC
= 150A, T
CASE
= 85°C
Frequency of the LO Side Voltage Ripple = 2x F
SW
C
LO_EXT
= 0µF, I
LO_OUT_DC
= 150A, V
HI_DC
= 54V,
20 MHz BW
T
CASE
≤
100ºC
95.2
93.6
96.7
95.4
93
0.9
2
1.6
0.85
1.7
2.1
2.3
0.90
120
200
2.1
2.4
2.6
0.95
MHz
mV
mΩ
97.2
95.6
%
%
95.8
%
1/6
150
180
30
35
25.5
A
V/V
A
A
5
7.2
5
10
9
14
12
17
A
W
36
60
14
V
V
mA
BCM
®
in a VIA Package
Page 5 of 38
Rev 1.1
05/2016
vicorpower.com
800 927.9474
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