BCM
®
Bus Converter
BCM6123x60E15A3yzz
®
S
C
US
C
NRTL
US
Isolated Fixed-Ratio DC-DC Converter
Features & Benefits
•
Up to 130A continuous secondary current
•
Up to 2867W/in
3
power density
•
97.4% peak efficiency
•
2,250V
DC
isolation
•
Parallel operation for multi-kW arrays
•
OV, OC, UV, short circuit and thermal protection
•
BCM6123 through-hole ChiP package
2.402 x 0.990 x 0.284in
[61.00 x 25.14 x 7.21mm]
•
PMBus™ management interface
[a]
V
PRI
= 54V (36 – 60V)
V
SEC
= 13.5V (9 – 15V)
(
no load
)
Product Ratings
I
SEC
= up to 130A
K = 1/4
Product Description
The BCM6123x60E15A3yzz is a high-efficiency Bus Converter,
operating from a 36 to 60V
DC
primary bus to deliver an isolated,
ratiometric secondary voltage from 9 to 15V
DC
.
The BCM6123x60E15A3yzz 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 1/4, that
capacitance value can be reduced by a factor of 16x, 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.
Typical Applications
•
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 29
Rev 1.4
07/2018
BCM6123x60E15A3yzz
Typical Applications
BCM
TM
EN
enable/disable
switch
F1
V
PRI
SW1
VAUX
+V
PRI
C
PRI
–V
PRI
+V
SEC
PoL
–V
SEC
SECONDARY
GND
PRIMARY
ISOLATION BOUNDARY
BCM6123x60E15A3y00 at point-of-load
BCM
SER-OUT
SER-OUT
EN
SER-IN
SER-IN
enable/disable
switch
FUSE
+V
PRI
C
I_BCM_ELEC
+V
SEC
PoL
V
PRI
–V
PRI
SOURCE_RTN
PRIMARY
–V
SEC
SECONDARY
ISOLATION BOUNDARY
Digital Isolator
I13TL1A0
NC
SER-IN
PRI_OUT_B
SER-OUT
PRI_IN_C
SEC_OUT_C
RXD
SEC_IN_B
TXD
PRI_OUT_A
SEC_IN_A
Digital
Supervisor
D44TL1A0
Host µC
VDDB
t
+
–
V
VDD
EXT
SGND
PRI_COM
SEC_COM
SGND
PMBus
PMBus
SGND
SGND
SGND
BCM6123x60E15A3y01 at point-of-load
BCM
®
Bus Converter
Page 2 of 29
Rev 1.4
07/2018
BCM6123x60E15A3yzz
Pin Configuration
1
+V
SEC
–V
SEC
1
–V
SEC
1
+V
SEC
+V
SEC
–V
SEC
1
–V
SEC
1
+V
SEC
+V
PRI
+V
PRI
+V
PRI
+V
PRI
A
B
C
D
E
F
G
H
I
J
K
L
TOP VIEW
2
A’
+V
SEC
B’
–V
SEC
2
C’
–V
SEC
2
D’
+V
SEC
E’
F’
+V
SEC
–V
SEC
2
G’
–V
SEC
2
H’
+V
SEC
I’
J’
TM/SER-OUT
EN
K’
VAUX/SER-IN
L’
–V
PRI
BCM6123 ChiP™
Pin Descriptions
Power Pins
Pin Number
I1, J1, K1, L1
L’2
A1, D1, E1, H1, A’2,
D’2, E’2, H’2
B1, C1, F1, G1
B’2, C’2, F’2, G’2
Signal Name
+V
PRI
–V
PRI
+V
SEC
–V
SEC [b]
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
I’2
J’2
K’2
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
I’2
J’2
K’2
[b]
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
For proper operation an external low impedance connection must be made between listed –V
SEC
1 and –V
SEC
2 terminals.
BCM
®
Bus Converter
Page 3 of 29
Rev 1.4
07/2018
BCM6123x60E15A3yzz
Part Ordering Information
Product
Function
BCM
Package
Size
6123
Package
Mounting
x
Max Primary
Input Voltage
60
Range
Identifier
E
Max
Secondary
Voltage
15
Secondary
Output
Current
A3
Temperature
Grade
y
Option
zz
00
= Analog Ctrl
Bus Converter
Module
61 = L
23 = W
T
= TH
60V
36 – 60V
15V
No Load
130A
T
= –40 to 125°C
M
= –55 to 125°C
01
= PMBus Ctrl
0R
= Reversible Analog Ctrl
0P
= Reversible PMBus Ctrl
All products shipped in JEDEC standard high profile (0.400” thick) trays (JEDEC Publication 95, Design Guide 4.10).
Standard Models
Product
Function
BCM
BCM
Package
Size
6123
6123
Package
Mounting
T
T
Max Primary
Input Voltage
60
60
Range
Identifier
E
E
Max
Secondary
Voltage
15
15
Secondary
Output
Current
A3
A3
Temperature
Grade
T
T
Option
00
01
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
+V
PRI_DC
to –V
PRI_DC
V
PRI_DC
or V
SEC_DC
Slew Rate
(Operational)
+V
SEC_DC
to –V
SEC_DC
TM/SER-OUT to –V
PRI_DC
EN to –V
PRI_DC
VAUX/SER-IN to –V
PRI_DC
–0.3
–1
Comments
Min
–1
Max
80
1
20
4.6
5.5
4.6
Unit
V
V/µs
V
V
V
V
BCM
®
Bus Converter
Page 4 of 29
Rev 1.4
07/2018
BCM6123x60E15A3yzz
Electrical Specifications
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 Powertrain PRIMARY to SECONDARY Specification (Forward Direction)
Primary Input Voltage Range
(Continuous)
V
PRI
µController
PRI to SEC Input Quiescent Current
V
PRI_DC
V
µC_ACTIVE
I
PRI_Q
V
PRI_DC
voltage where µC is initialized,
(i.e., VAUX = Low, powertrain inactive)
Disabled, EN Low, V
PRI_DC
= 54V
T
INTERNAL
≤ 100ºC
V
PRI_DC
= 54V, T
INTERNAL
= 25ºC
PRI to SEC No-Load
Power Dissipation
P
PRI_NL
V
PRI_DC
= 54V
V
PRI_DC
= 36 – 60V, T
INTERNAL
= 25ºC
V
PRI_DC
= 36 – 60V
PRI to SEC Inrush Current Peak
DC Primary Input Current
Transformation Ratio
Secondary Output Current
(Continuous)
Secondary Output Current (Pulsed)
I
PRI_INR_PK
I
PRI_IN_DC
K
I
SEC_OUT_DC
I
SEC_OUT_PULSE
10ms pulse, 25% duty cycle,
I
SEC_OUT_AVG
≤ 50% of rated I
SEC_OUT_DC
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 130A
PRI to SEC Efficiency (Ambient)
η
AMB
η
HOT
η
20%
R
SEC_COLD
PRI to SEC Output Resistance
R
SEC_AMB
R
SEC_HOT
Switching Frequency
Secondary Output Voltage Ripple
Primary Input Leads Inductance
(Parasitic)
Secondary Output Leads Inductance
(Parasitic)
F
SW
V
SEC_OUT_PP
V
PRI_DC
= 36 – 60V, I
SEC_OUT_DC
= 130A
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 65A
PRI to SEC Efficiency (Hot)
PRI to SEC Efficiency
(Over Load Range)
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 130A
26A < I
SEC_OUT_DC
< 130A
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 130A, T
INTERNAL
= –40°C
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 130A
V
PRI_DC
= 54V, I
SEC_OUT_DC
= 130A, T
INTERNAL
= 100°C
Frequency of the output voltage ripple = 2x F
SW
C
SEC_EXT
= 0μF, I
SEC_OUT_DC
=130A, V
PRI_DC
= 54V,
20MHz BW
T
INTERNAL
≤ 100ºC
L
PRI_IN_LEADS
L
SEC_OUT_LEADS
Frequency 2.5MHz (double switching frequency),
simulated lead model
Frequency 2.5MHz (double switching frequency),
simulated lead model
6.7
0.64
96.2
95.2
96.5
95.8
90
1.2
1.6
2.2
0.9
1.5
1.95
2.5
0.95
120
250
nH
nH
1.8
2.3
2.8
1.0
MHz
mV
mΩ
97.4
96.5
%
%
97
%
V
PRI_DC
= 60V, C
SEC_EXT
= 3000μF,
R
LOAD_SEC
= 20% of full-load current
T
INTERNAL
≤ 100ºC
At I
SEC_OUT_DC
= 130A, T
INTERNAL
≤ 100ºC
Primary to secondary, K = V
SEC_DC
/ V
PRI_DC
, at no load
1/4
130
145
40
45
33
A
V/V
A
A
7
14.7
5
10
21.6
35.2
25
38
A
W
36
60
14
V
V
mA
BCM
®
Bus Converter
Page 5 of 29
Rev 1.4
07/2018
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