Datasheet

LM5066
www.ti.com SNVS655G –JUNE 2011–REVISED FEBRUARY 2013
PMBUS
™
COMMAND SUPPORT
The device features an SMBus interface that allows the use of PMBus commands to set warn levels, error
masks, and get telemetry on V
IN
, V
OUT
, I
IN
, V
AUX
, and P
IN
. The supported PMBus commands are shown in
Table 1.
Table 1. Supported PMBus Commands
Number
Default
Code Name Function R/W Of Data
Value
Bytes
01h OPERATION Retrieves or stores the operation status. R/W 1 80h
03h CLEAR_FAULTS Clears the status registers and re-arms the Black Box Send 0
registers for updating. Byte
19h CAPABILITY Retrieves the device capability. R 1 B0h
43h VOUT_UV_WARN_LIMIT Retrieves or stores output under-voltage warn limit threshold. R/W 2 0000h
4Fh OT_FAULT_LIMIT Retrieves or stores over temperature fault limit threshold. R/W 2 0960h
(150°C)
51h OT_WARN_LIMIT Retrieves or stores over temperature warn limit threshold. R/W 2 07D0h
(125°C)
57h VIN_OV_WARN_LIMIT Retrieves or stores input over-voltage warn limit threshold. R/W 2 0FFFh
58h VIN_UV_WARN_LIMIT Retrieves or stores input under-voltage warn limit threshold. R/W 2 0000h
78h STATUS_BYTE Retrieves information about the parts operating status. R 1 49h
79h STATUS_WORD Retrieves information about the parts operating status. R 2 3849h
7Ah STATUS_VOUT Retrieves information about output voltage status. R 1 00h
7Ch STATUS_INPUT Retrieves information about input status. R 1 10h
7Dh STATUS_TEMPERATURE Retrieves information about temperature status. R 1 00h
7Eh STATUS_CML Retrieves information about communications status. R 1 00h
80h STATUS_MFR_SPECIFIC Retrieves information about circuit breaker and MOSFET R 1 10h
shorted status.
88h READ_VIN Retrieves input voltage measurement. R 2 0000h
8Bh READ_VOUT Retrieves output voltage measurement. R 2 0000h
8Dh READ_TEMPERATURE_1 Retrieves temperature measurement. R 2 0190h
99h MFR_ID Retrieves manufacturer ID in ASCII characters (NSC). R 3 4Eh
53h
43h
9Ah MFR_MODEL Retrieves Part number in ASCII characters. (LM5066\0\0). R 8 4Ch
4Dh
35h
30h
36h
36h
0h
0h
9Bh MFR_REVISION Retrieves part revision letter/number in ASCII (for example, R 2 41h
AA). 41h
D0h MFR_SPECIFIC_00 Retrieves auxiliary voltage measurement. R 2 0000h
READ_VAUX
D1h MFR_SPECIFIC_01 Retrieves input current measurement. R 2 0000h
MFR_READ_IIN
D2h MFR_SPECIFIC_02 Retrieves input power measurement. R 2 0000h
MFR_READ_PIN
D3h MFR_SPECIFIC_03 Retrieves or stores input current limit warn threshold. R/W 2 0FFFh
MFR_IIN_OC_WARN_LIMIT
D4h MFR_SPECIFIC_04 Retrieves or stores input power limit warn threshold. R/W 2 0FFFh
MFR_PIN_OP_WARN_LIMIT
D5h MFR_SPECIFIC_05 Retrieves measured peak input power measurement. R 2 0000h
READ_PIN_PEAK
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