LM25066APSQE/NOPB National Semiconductor, LM25066APSQE/NOPB Datasheet - Page 37

• 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

shown in the Telemetry and Warning Conversion Coefficients
Table.
MFR_SPECIFIC_15: READ_AVG_PIN
The READ_AVG_PIN command will report the upper 12 bits
of the average VIN x IIN product as measured by the 12-bit
ADC. You will read the default value (0000h) or previous data
when the average data is not ready. This data is read with the
PMBus™ Read Word protocol. This register should use the
coefficients shown in the Telemetry and Warning Conversion
Coefficients Table.
MFR_SPECIFIC_18: AVG_BLOCK_READ (E2h)
The AVG_BLOCK_READ command concatenates the
DIAGNOSTIC_WORD with input and output average teleme-
try information (IIN, VOUT, VIN, PIN) as well as TEMPERA-
TURE to capture all of the operating information of the part in
a single PMBus™ transaction. The block is 12 bytes long with
telemetry information being sent out in the same manner as
if an individual READ_AVG_XXX command had been issued
(shown below). AVG_BLOCK_READ also guarantees that
the VIN, VOUT, PIN, and IIN measurements are all time-
aligned whereas there is a chance they may not be if read
with individual PMBus™ commands. To read data from the
Value
0h – 0FFFh
Value
0h – 0FFFh
TABLE 37. READ_AVG_PIN Register
TABLE 36. READ_AVG_IIN Register
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Meaning
Average of
measured values
for current sense
voltage
Meaning
Average of
measured value
for input voltage x
input current sense
voltage
Default
0000h
Default
0000h
TABLE 38. DIAGNOSTIC_WORD Format
VOUT_UNDERVOLTAGE_WARN
OVER_TEMPERATURE_FAULT
OVER_TEMPERATURE_WARN
VIN_UNDERVOLTAGE_FAULT
VIN_UNDERVOLTAGE_WARN
VIN_OVERVOLTAGE_FAULT
VIN_OVERVOLTAGE_WARN
CIRCUIT_BREAKER_FAULT
EXT_MOSFET_SHORTED
IIN_OC/PFET_OP_FAULT
TIMER_LATCHED_OFF
CONFIG_PRESET
POWER GOOD
IIN_OP_WARN
DEVICE_OFF
CML_FAULT
Meaning
37
MFR_SPECIFIC_16: BLACK_BOX_READ (E0h)
The
BLOCK_READ data which was latched in at the first assertion
of SMBA. It is re-armed with the CLEAR_FAULTS command.
It is the same format as the BLOCK_READ registers, the only
difference being that its contents are updated with the SM-
BA edge rather than the internal clock edge. This command
is read with the PMBus™ Block Read protocol.
MFR_SPECIFIC_17: READ_DIAGNOSTIC_WORD (E1h)
The READ_DIAGNOSTIC_WORD PMBus™ command will
report all of the LM25066A faults and warnings in a single read
operation. The standard response to the assertion of the SM-
BA signal of issuing multiple read requests to various status
registers can be replaced by a single word read to the
DIAGNOSTIC_WORD
READ_DIAGNOSTIC_WORD command should be read with
the
DIAGNOSTIC_WORD is also returned in the BLOCK_READ,
BLACK_BOX_READ, and AVG_BLOCK_READ operations.
AVG_BLOCK_READ command, use the SMBus Block Read
protocol.
TABLE 39. AVG_BLOCK_READ Register Format
BLACK_BOX_READ
PMBus™
Byte Count (always 12)
DIAGNOSTIC_WORD
TEMPERATURE
AVG_VOUT
AVG_VIN
AVG_PIN
AVG_IIN
Read
command
Word
register.
Default
0
0
0
0
1
0
0
0
1
1
1
0
0
0
0
0
protocol.
retrieves
(1 word)
(1 word)
(1 word)
(1 word)
(1 word)
(1 word)
(1 byte)
www.national.com
The
The
the