LM25066APSQE/NOPB National Semiconductor, LM25066APSQE/NOPB Datasheet - Page 32

• Manufacturer Part Number: LM25066APSQE/NOPB
• Description: IC CTLR PM HOTSWAP 24-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM25066APSQE/NOPB

• Applications: Base Station-Networking Line Cards, Servers
• Current - Supply: 5.8mA
• Voltage - Supply: 2.9 V ~ 17 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Input Voltage: 17V
• Internal Switch: No
• Supply Voltage Range: 2.9V To 5.5V
• Rohs Compliant: Yes
• Digital Ic Case Style: LLP
• No. Of Pins: 24
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM25066APSQE/NOPBTR

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STATUS_CML (7Eh)
The STATUS_CML is a standard PMBus ™ command that
returns the value of a number of flags related to communica-
STATUS_MFR_SPECIFIC (80h)
The STATUS_MFR_SPECIFIC command is a standard PM-
Bus ™ command that contains manufacturer specific status
information. Accesses to this command should use the PM-
Bus ™ read byte protocol. To clear bits in this register, the
underlying fault should be removed and a CLEAR_FAULTS
command should be issued.
READ_VIN (88h)
The READ_VIN command is a standard PMBus ™ command
that returns the 12-bit measured value of the input voltage.
Reading this register should use the coefficients shown in the
Telemetry and Warning Conversion Coefficients Table. Ac-
cesses to this command should use the PMBus ™ read word
protocol. This value is also used internally for the VIN over-
and under-voltage warning detection.
READ_VOUT (8Bh)
The READ_VOUT command is a standard PMBus ™ com-
mand that returns the 12-bit measured value of the output
voltage. Reading this register should use the coefficients
shown in the Telemetry and Warning Conversion Coefficients
Table. Accesses to this command should use the PMBus ™
read word protocol. This value is also used internally for the
VOUT Under-voltage Warning detection.
Value
0h – 0FFFh
Bit
TABLE 15. STATUS_MFR_SPECIFIC Definitions
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
External MOSFET shorted fault
TABLE 16. READ_VIN Register
Not Supported, Always 0
Not supported: Always 0
Not supported: Always 0
Not supported: Always 0
Not supported: Always 0
Circuit breaker fault
Meaning
Measured value
for VIN
Defaults loaded
Meaning
Other memory or logic fault detected Not supported, always 0
Processor Fault Detected Not supported, always 0
Miscellaneous communications fault has occurred
Memory Fault Detected Not supported, always 0
Invalid or unsupported command received
Default
0000h
Invalid or unsupported data received
Reserved Not supported, always 0
TABLE 14. STATUS_CML Definitions
Packet Error Check failed
Default
0
0
0
1
0
0
0
0
NAME
32
tion faults. Accesses to this command should use the PM-
Bus ™ read byte protocol. To clear bits in this register, a
CLEAR_FAULTS command should be issued.
READ_TEMPERATURE_1 (8Dh)
The READ_TEMPERATURE_1 command is a standard PM-
Bus ™ command that returns the signed value of the temper-
ature measured by the external temperature sense diode.
Reading this register should use the coefficients shown in the
Telemetry and Warning Conversion Coefficients Table. Ac-
cesses to this command should use the PMBus ™ read word
protocol. This value is also used internally for the Over Tem-
perature Fault and Warning detection. This data has a range
of -256°C to + 255°C after the coefficients are applied.
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.
MFR_MODEL (9Ah)
The MFR_MODEL command is a standard PMBus ™ com-
mand that returns the part number of the chip. To read the
MFR_MODEL, use the PMBus ™ block read protocol.
Value
0h – 0FFFh
Value
0h – 0FFFh
Byte
TABLE 18. READ_TEMPERATURE_1 Register
0
1
2
3
TABLE 17. READ_VOUT Register
TABLE 19. MFR_ID Register
Number of bytes
Meaning
Measured value
for VOUT
Meaning
Measured value
for
TEMPERATURE
MFR ID-1
MFR ID-2
MFR ID-3
Name
Default
0000h
Default
0000h
Default
4Eh ‘N’
53h ‘S’
43h ‘C’
Value
0
0
0
0
0
0
0
0
03h