Ericsson Internal
E
SECSUND
PRODUCT SPECIFICATION
2 (4)
Prepared (also subject responsible if other)
No.
31/1301-BMR 456+ Uen
41
Technical Specification
BMR456 series Fully regulated AdvCahneckceed d Bus Converters
Approved
Date
Rev
Reference
1/28701-FGC 101 1823 revD February 2013
SEC/D (Julia You)
EMAOLII
2012-06-25
B
© Ericsson AB
Input 36-75 V, Output up to 39 A / 468 W
stretching. Additionally, a bus-free time delay between every
SMBus transmission (between every stop & start condition)
must occur. Refer to the SMBus specification, for SMBus
electrical and timing requirements. Note that an additional
delay of 5 ms has to be inserted in case of storing the RAM
content into the internal non-volatile memory.
Designation
Cmd Prot
IOUT_OC_FAULT_RESPONSE
IOUT_OC_LV_FAULT_LIMIT
IOUT_OC_WARN_LIMIT
OT_FAULT_LIMIT
47h
48h
4Ah
4Fh
50h
51h
52h
53h
54h
55h
56h
57h
58h
59h
5Ah
5Eh
5Fh
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
OT_FAULT_RESPONSE
OT_WARN_LIMIT
PMBus Commands
The products are PMBus compliant. The following table lists
the implemented PMBus read commands. For more detailed
information see PMBus Power System Management Protocol
Specification; Part I – General Requirements, Transport and
Electrical Interface and PMBus Power System Management
Protocol; Part II – Command Language.
UT_WARN_LIMIT
UT_FAULT_LIMIT
UT_FAULT_RESPONSE
VIN_OV_FAULT_LIMIT
VIN_OV_FAULT_RESPONSE
VIN_OV_WARN_LIMIT
VIN_UV_WARN_LIMIT
VIN_UV_FAULT_LIMIT
VIN_UV_FAULT_RESPONSE
POWER_GOOD_ON
POWER_GOOD_OFF
Time setting Commands
TON_DELAY
Designation
Cmd Prot
Standard PMBus Commands
Control Commands
OPERATION
01h
02h
10h
No
No
No
ON_OFF_CONFIG
WRITE_PROTECT
Output Commands
60h
61h
62h
63h
64h
65h
66h
No
No
No
No
No
No
No
VOUT_MODE
20h
21h
22h
23h
24h
25h
26h
27h
29h
2Ah
32h
33h
35h
36h
38h
39h
No
TON_RISE
VOUT_COMMAND
VOUT_TRIM
No
TON_MAX_FAULT_LIMIT
TON_MAX_FAULT_RESPONSE
TOFF_DELAY
No
VOUT_CAL_OFFSET
VOUT_MAX
Yes
No
TOFF_FALL
VOUT_MARGIN_HIGH
VOUT_MARGIN_LOW
VOUT_TRANSITION_RATE
VOUT_SCALE_LOOP
VOUT_SCALE_MONITOR
MAX_DUTY
No
TOFF_MAX_WARN_LIMIT
Status Commands (Read Only)
CLEAR_FAULTS
No
No
03h
78h
79h
7Ah
7Bh
No
No
No
No
No
Yes
Yes
No
STATUS_BYTES
STATUS_WORD
STATUS_VOUT
FREQUENCY_SWITCH
VIN_ON
No
STATUS_IOUT
No
STATUS_INPUT
7Ch No
7Dh No
VIN_OFF
No
STATUS_TEMPERATURE
STATUS_CML
IOUT_CAL_GAIN
Yes
Yes
7Eh
7Fh
No
No
IOUT_CAL_OFFSET
Fault Commands
STATUS_OTHER
Monitior Commands (Read Only)
READ_VIN
VOUT_OV_FAULT_LIMIT
VOUT_OV_FAULT_RESPONSE
VOUT_OV_WARN_LIMIT
VOUT_UV_WARN_LIMIT
VOUT_UV_FAULT_LIMIT
VOUT_UV_FAULT_RESPONSE
IOUT_OC_FAULT_LIMIT
40h
41h
42h
43h
44h
45h
46h
No
No
No
No
No
No
No
88h
8Bh
No
No
READ_VOUT
READ_IOUT
8Ch No
8Dh No
READ_TEMPERATURE_1
READ_TEMPERATURE_2
READ_DUTY_CYCLE
8Eh
94h
No
No
ERICSSON [ ERICSSON ]
