BCM3814B60E10A5C02 Datasheet, PDF (22/38 Pages) Vicor Corporation – Isolated, Fixed-Ratio DC-DC Converter

BCM3814x60E10A5yzz
PMBus™ Interface
Refer to “PMBus Power System Management Protocol Specification
Revision 1.2, Part I and II” for complete PMBus specifications details
visit http://pmbus.org.
Where:
X, is a “real world” value in units (A, V, °C, s)
Y, is a two’s complement integer received from the internal µC
m, b and R are two’s complement integers defined as follows:
Device Address
The PMBus address (ADDR Pin) should be set to one of a
predetermined 16 possible addresses shown in the table below
using a resistor between ADDR pin and SGND pin.
The BCM accepts only a fixed and persistent address and does not
support SMBus address resolution protocol. At initial power‐up, the
BCM internal µC will sample the address pin voltage, and will hold
this address until device power is removed.
ID
Slave
Address
1
1010 000b
2
1010 001b
3
1010 010b
4
1010 011b
5
1010 100b
6
1010 101b
7
1010 110b
8
1010 111b
9
1011 000b
10
1011 001b
11
1011 010b
12
1011 011b
13
1011 100b
14
1011 101b
15
1011 110b
16
1011 111b
HEX
50h
51h
52h
53h
54h
55h
56h
57h
58h
59h
5Ah
5Bh
5Ch
5Dh
5Eh
5Fh
Recommended
Resistor R_ADDR (Ω)
487
1050
1870
2800
3920
5230
6810
8870
11300
14700
19100
25500
35700
53600
97600
316000
Command
Code
m
R
b
TON_DELAY
60h
1
3
0
READ_VIN
88h
1
1
0
READ_IIN
89h
1
2
0
READ_VOUT
8Bh
1
1
0
READ_IOUT
8Ch
1
2
0
READ_TEMPERATURE_1
8Dh
1
0
0
READ_POUT
96h
1
0
0
MFR_VIN_MIN
A0h
1
0
0
MFR_VIN_MAX
A1h
1
0
0
MFR_VOUT_MIN
A4h
1
0
0
MFR_VOUT_MAX
A5h
1
0
0
MFR_IOUT_MAX
A6h
1
0
0
MFR_POUT_MAX
A7h
1
0
0
READ_K_FACTOR
D1h
65536
0
0
READ_BCM_ROUT
D4h
1
2
0
[1] _{Default READ LO side voltage returned when BCM unit is disabled = -300V.}
[2] _{Default READ Temperature returned when BCM unit is disabled = -273°C.}
No special formatting is required when lowering the supervisory
limits and warnings.
Reported DATA Formats
The BCM internal µC employs a direct data format where all
reported internal µC measurements are in Volts, Amperes,
Degrees Celsius, or Seconds. The host uses the following PMBus
specification to interpret received values metric prefixes. Note that
the Coefficients command is not supported:
X= (
1
m
) • (Y • 10^-R - b)
BCM^® in a VIA Package
Page 22 of 38
Rev 1.1
05/2016
vicorpower.com
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