Datasheet

LTC3883/LTC3883-1
95
3883fa
For more information www.linear.com/LTC3883
PMBus COMMAND DETAILS
MFR_PADS
This command provides the user a means of directly reading the digital status of the I/O pins of the device. The bit
assignments of this command are as follows:
BIT ASSIGNED DIGITAL PIN
15 V
DD33
OV Fault
14 V
DD33
UV Fault
13 Reserved
12 Reserved
11 ADC Values Invalid, Occurs During Start-Up
10 Device Driving ALERT Low
9 Reserved
8 Power Good
7 Reserved
6 Device Driving RUN Low
5 Reserved
4 RUN
3 Reserved
2 Device Driving GPIO Low
1 Reserved
0 GPIO
A 1 indicates the condition is true.
This read-only command has two data bytes.
MFR_COMMON
The MFR_COMMON command contains bits that are common to all LT C digital power and telemetry products.
BIT MEANING
7 Chip Not Driving ALERT Low
6 Busy when Low
5 Calculations Not Pending
4 Output in Transition when Low
3 NVM Initialized
2 Reserved
1 SHARE_CLK Timeout
0 WP Pin Status
This read-only command has one data byte.
TELEMETRY
COMMAND NAME
CMD
CODE DESCRIPTION TYPE FORMAT UNITS NVM
DEFAULT
VALUE
READ_VIN 0x88 Measured input supply voltage. R Word L11 V NA
READ_IIN 0x89 Measured input supply current. R Word L11 A NA
READ_VOUT 0x8B Measured output voltage. R Word L16 V NA