BCM
®
Bus Converter
BCM6123xD1E5126yzz
®
S
C
US
C
NRTL
US
Isolated Fixed-Ratio DC-DC Converter
Features & Benefits
•
Up to 25.7A continuous secondary current
•
Up to 1876W/in
3
power density
•
97.9% peak efficiency
•
4,242V
DC
isolation
•
Parallel operation for multi-kW arrays
•
OV, OC, UV, short circuit and thermal protection
•
BCM6123 through-hole ChiP package
2.494 x 0.898 x 0.284in
[63.34 x 22.80 x 7.21mm]
•
PMBus™ management interface
[a]
Product Ratings
V
PRI
= 380V (260 – 410V)
V
SEC
= 47.5V (32.5 – 51.3V)
(
no load
)
I
SEC
= up to 25.7A
K = 1/8
Product Description
The BCM6123xD1E5126yzz is a high-efficiency Bus Converter,
operating from a 260 to 410V
DC
primary bus to deliver an isolated,
ratiometric secondary voltage from 32.5 to 51.3V
DC
.
The BCM6123xD1E5126yzz offers low noise, fast transient
response, and industry leading efficiency and power density. In
addition, it provides an AC impedance beyond the bandwidth of
most downstream regulators, allowing input capacitance normally
located at the input of a PoL regulator to be located at the primary
side of the BCM. With a primary to secondary K factor of 1/8, that
capacitance value can be reduced by a factor of 64x, resulting in
savings of board area, material and total system cost.
Leveraging the thermal and density benefits of Vicor ChiP
packaging technology, the BCM offers flexible thermal
management options with very low top and bottom side thermal
impedances. Thermally-adept ChiP-based power components
enable customers to achieve low cost power system solutions
with previously unattainable system size, weight and efficiency
attributes quickly and predictably.
This product can operate in the reverse direction, at full rated
current, after being previously started in the forward direction.
Typical Applications
•
380V
DC
Power Distribution
•
High-End Computing Systems
•
Automated Test Equipment
•
Industrial Systems
•
High-Density Power Supplies
•
Communications Systems
•
Transportation
[a]
When used with D44TL1A0 and I13TL1A0
BCM
®
Bus Converter
Page 1 of 30
Rev 1.4
07/2018
BCM6123xD1E5126yzz
Typical Applications (Cont.)
BCM
TM/SER-OUT
enable/disable
switch
ENABLE
TRIM
AL
PRM
VAUX
REF/
REF_EN
VT
VC
IFB
R
SGND
VTM
Adaptive Loop Temperature Feedback
VTM Start Up Pulse
V
TM
VC
PC
O_PRM_DAMP
EN
+OUT
OUT
enable/disable
switch
SGND
VAUX/SER-IN
R
I_PRM_DAMP
R
TRIM_PRM
R
SHARE/
CONTROL NODE
AL_PRM
C
+IN
O_VTM_CER
LOAD
FUSE
V
PRI
+V
PRI
C
I_BCM_ELEC
+V
SEC
L
+IN
R
I_PRM_CER
+OUT
I_PRM_FLT
L
O_PRM_FLT
C
O_PRM_CER
–V
PRI
SOURCE_RTN
PRIMARY
–V
SEC
SECONDARY
–IN
SGND
–OUT
–IN
PRIMARY
–OUT
SECONDARY
ISOLATION BOUNDARY
ISOLATION BOUNDARY
LOAD_RTN
SGND
BCM6123xD1E5126yzz + PRM™ + VTM™, Adaptive-Loop configuration
BCM
TM/SER-OUT
enable/disable
switch
SGND
V
REF
ENABLE
TRIM
VAUX
GND
Voltage Sense and Error Amplifier
(Differential)
EN
REF/
REF_EN
VT
VC
IFB
V+
VOUT
+IN
–IN
SGND
V–
VTM
TM
VC
PC
R
+OUT
VTM Start up Pulse
AL
SHARE/
CONTROL NODE
SGND
Voltage Reference with Soft Start
enable/disable
switch
VAUX/SER-IN
R
SGND
I_PRM_DAMP
L
+IN
O_PRM_DAMP
+IN
C
FUSE
O_VTM_CER
LOAD
V
PRI
SOURCE_RTN
+V
PRI
C
+V
SEC
–V
SEC
SECONDARY
+OUT
External Current Sense
I_BCM_ELEC
I_PRM_FLT
C
I_PRM_ELEC
–IN
L
O_PRM_FLT
C
–V
PRI
PRIMARY
O_PRM_CER
–IN
PRIMARY
ISOLATION BOUNDARY
SGND
–OUT
–OUT
SECONDARY
ISOLATION BOUNDARY
SGND
BCM6123xD1E5126yzz + PRM + VTM, Remote-Sense configuration
3-Phase AIM
BCM6123 ChiP™
+
L1
L2
L3
+V
PRI
TM / SER-OUT
EN
VAUX / SER-IN
+V
SEC
L
O
A
D
–
–V
PRI
ISOLATION BOUNDARY
–V
SEC
3-phase AC to point-of-load (3-phase AIM™ + BCM6123xD1E5126yzz)
BCM
®
Bus Converter
Page 3 of 30
Rev 1.4
07/2018
Voltage Sense
PRM
SGND
REF 3312
IN
OUT
SGND
BCM6123xD1E5126yzz
Pin Configuration
TOP VIEW
1
2
+V
PRI
A
A’
+V
SEC
TM/SER-OUT
B
B’
–V
SEC
EN
C
C’
+V
SEC
VAUX/SER-IN
D
–V
PRI
E
D’
–V
SEC
BCM6123 ChiP™
Pin Descriptions
Power Pins
Pin Number
A1
E1
A’2, C’2
B’2, D’2
Signal Name
+V
PRI
–V
PRI
+V
SEC
–V
SEC
Type
PRIMARY POWER
PRIMARY POWER
RETURN
SECONDARY
POWER
SECONDARY
POWER RETURN
Function
Positive primary transformer power terminal
Negative primary transformer power terminal
Positive secondary transformer power terminal
Negative secondary transformer power terminal
Analog Control Signal Pins
Pin Number
B1
C1
D1
Signal Name
TM
EN
VAUX
Type
OUTPUT
INPUT
OUTPUT
Function
Temperature Monitor; primary side referenced signals
Enables and disables power supply; primary side referenced signals
Auxiliary Voltage Source; primary side referenced signals
PMBus™ Control Signal Pins
Pin Number
B1
C1
D1
Signal Name
SER-OUT
EN
SER-IN
Type
OUTPUT
INPUT
INPUT
Function
UART transmit pin; Primary side referenced signals
Enables and disables power supply; Primary side referenced signals
UART receive pin; Primary side referenced signals
BCM
®
Bus Converter
Page 4 of 30
Rev 1.4
07/2018
ARM Technology
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