Datasheet
LM25066I, LM25066IA
www.ti.com
SNVS824C –JUNE 2012–REVISED MARCH 2013
READ_VOUT (8Bh)
The READ_VOUT command is a standard PMBus
™
command that returns the 12-bit measured value of the
output voltage. Reading this register should use the coefficients shown in Table 44. Accesses to this command
should use the PMBus
™
read word protocol. This value is also used internally for the VOUT Under Voltage
Warning detection.
Table 18. READ_VOUT Register
Value Meaning Default
0h – 0FFFh Measured value for VOUT 0000h
READ_IIN (89h)
The READ_IIN command is a standard PMBus
™
command that returns the 12-bit measured value of the input
current. Returns instantaneous current. Reading this register should use the coefficients shown in Table 44.
Accesses to this command should use the PMBus
™
read word protocol. This value is also mirrored at (D1H)
Table 19. READ_IIN Register
Value Meaning Default
0h – 0FFFh Measured value for IIN 0000h
READ_PIN (97h)
The READ_IIN command is a standard PMBus
™
command that returns the 12-bit measured value of the input
current. Returns average power Reading this register should use the coefficients shown in Table 44. Accesses to
this command should use the PMBus
™
read word protocol. This value is also mirrored at (DFh)
Table 20. READ_PIN Register
Value Meaning Default
0h – 0FFFh Measured value for PIN 0000h
READ_TEMPERATURE_1 (8Dh)
The READ_TEMPERATURE _1 command is a standard PMBus
™
command that returns the signed value of the
temperature measured by the external temperature sense diode. Reading this register should use the coefficients
shown in Table 44. Accesses to this command should use the PMBus
™
read word protocol. This value is also
used internally for the Over Temperature Fault and Warning detection. This data has a range of -256°C to +
255°C after the coefficients are applied.
Table 21. READ_TEMPERATURE_1 Register
Value Meaning Default
0h – 0FFFh Measured value for TEMPERATURE 0000h
MFR_ID (99h)
The MFR_ID command is a standard PMBus
™
command that returns the identification of the manufacturer. To
read the MFR_ID, use the PMBus
™
block read protocol.
Table 22. MFR_ID Register
Byte Name Value
0 Number of bytes 02h
1 MFR ID-1 54h ‘T’
2 MFR ID-2 49h ‘I’
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