Ericsson Internal
E
EGUHAIL
PRODUCT SPECIFICATION
2 (4)
Prepared (also subject responsible if other)
No.
31/1301-BMR 451 00/02 Uen
19
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 401 R4A May 2015
BMR 451 Digital PoL Regulators
Input 4.5-14 V, Output up to 40 A / 132 W
SEC/D (Julia You)
EZIWSON
2011-12-20
D
© Ericsson AB
PMBus Commands
VIN_UV_WARN_LIMIT
VIN_UV_FAULT_LIMIT
VOUT_OV_WARN_LIMIT
VOUT_UV_WARN_LIMIT
IOUT_OC_WARN_LIMIT
Fault Response Commands
VOUT_OV_FAULT_RESPONSE
VOUT_UV_FAULT_RESPONSE
OT_FAULT_RESPONSE
UT_FAULT_RESPONSE
VIN_OV_FAULT_RESPONSE
VIN_UV_FAULT_RESPONSE
IOUT_OC_FAULT_RESPONSE
IOUT_UC_FAULT_RESPONSE
Time setting Commands
TON_DELAY
TON_RISE
TOFF_DELAY
TOFF_FALL
TON_MAX_FAULT_LIMIT
Status Commands (Read Only)
CLEAR_FAULTS
STATUS_BYTE
STATUS_WORD
58h
59h
42h
43h
4Ah
Yes
The DC/DC regulators are PMBus compliant. The following table
lists the implemented PMBus 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.
Yes
No
No
No
Designation
Cmd
Impl
41h
45h
50h
54h
56h
5Ah
47h
4Ch
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Standard PMBus Commands
Control Commands
PAGE
OPERATION
ON_OFF_CONFIG
WRITE_PROTECT
Output Commands
VOUT_MODE (Read Only)
VOUT_COMMAND
VOUT_TRIM
VOUT_CAL_GAIN
VOUT_MAX
VOUT_MARGIN_HIGH
VOUT_MARGIN_LOW
VOUT_TRANSITION_RATE
VOUT_DROOP
MAX_DUTY
FREQUENCY_SWITCH
IOUT_CAL_GAIN
IOUT_CAL_OFFSET
VOUT_SCALE_LOOP
VOUT_SCALE_MONITOR
COEFFICIENTS
Fault Limit Commands
POWER_GOOD_ON
VOUT_OV_FAULT_LIMIT
VOUT_UV_FAULT_LIMIT
IOUT_OC_FAULT_LIMIT
IOUT_UC_FAULT_LIMIT
OT_FAULT_LIMIT
00h
01h
02h
10h
No
Yes
Yes
No
60h
61h
64h
65h
62h
Yes
Yes
Yes
Yes
No
20h
21h
22h
23h
24h
25h
26h
27h
28h
32h
33h
38h
39h
29h
2Ah
30h
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
03h
78h
79h
7Ah
7Bh
7Ch
7Dh
7Eh
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
STATUS_VOUT
STATUS_IOUT
STATUS_INPUT
STATUS_TEMPERATURE
STATUS_CML
Monitor Commands (Read Only)
READ_VIN
READ_VOUT
88h
8Bh
8Ch
8Dh
8Eh
90h
94h
95h
Yes
Yes
Yes
Yes
No
No
Yes
Yes
READ_IOUT
5Eh
40h
44h
46h
4Bh
4Fh
51h
52h
53h
55h
57h
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
READ_TEMPERATURE_1
READ_TEMPERATURE_2
READ_FAN_SPEED_1
READ_DUTY_CYCLE
READ_FREQUENCY
Identification Commands (Read Only)
PMBUS_REVISION
MFR_ID
MFR_MODEL
MFR_REVISION
OT_WARN_LIMIT
UT_WARN_LIMIT
UT_FAULT_LIMIT
VIN_OV_FAULT_LIMIT
VIN_OV_WARN_LIMIT
98h
99h
9Ah
9Bh
Yes
Yes
Yes
Yes
ERICSSON [ ERICSSON ]
