LTP8800-1A

10

Rev. B

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Table 1. LTP8800-1A Summary of Customizable Commands and Features

PMBus COMMAND

NAME, OR FEATURE

CMD CODE

REGISTER

COMMAND OR FEATURE

DESCRIPTION

TYPE

DATA

UNITS

DATA

FORMAT

NVM

ATTRIBUTES

WRITE_PROTECT

0x10

Protect the PMBus device against accidental writes.

R/W Byte

NA

Bit Field Stored in user-

editable NVM.

VIN_ON

0x35

Sets the value of the input voltage (VRMS) at which

the device starts power conversion.

R/W Word

Volts

Linear 11 Stored in user-

editable NVM.

VIN_OFF

0x36

Sets the value of the input voltage (VRMS) at which

the device stops power conversion.

R/W word

Volts

Linear 11 Stored in user-

editable NVM.

VIN_OV_FAULT_LIMIT

0x55

Sets the upper voltage threshold (in volts) measured

at the sense/input pin that causes an overvoltage

fault condition.

R/W Word

Volts

Linear 11 Stored in user-

editable NVM.

VIN_UV_FAULT_LIMIT

0x59

Sets the lower voltage threshold (in volts) measured

at the sense/input pin that causes an undervoltage

fault condition.

R/W Word

Volts

Linear 11 Stored in user-

editable NVM.

IIN_OC_FAULT_LIMIT

0x5B

Sets the threshold value (in amperes) measured

at the sense/input pin that causes an overcurrent

fault condition.

R/W Word

Amps Linear 11 Stored in user-

editable NVM.

POUT_OP_FAULT_LIMIT

0x68

Sets the upper power threshold (in watts) measured

at the sense/output pin that causes an output

overpower fault condition.

R/W Word

Watts Linear 11 Stored in user-

editable NVM.

NM_DIGFILT_LF_GAIN_SETTING

0xFE01

Determines the low frequency gain of the loop

response in normal mode.

R/W Byte

NA

NA

Stored in user-

editable NVM.

NM_DIGFILT_ZERO_SETTING

0xFE02

Determines the position of the final zero in

normal mode.

R/W Byte

NA

NA

Stored in user-

editable NVM.

NM_DIGFILT_POLE_SETTING

0xFE03

Determines the position of the final pole in

normal mode.

R/W Byte

NA

NA

Stored in user-

editable NVM.

NM_DIGFILT_HF_GAIN_SETTING

0xFE04

Determines the high frequency gain of the loop

response in normal mode.

R/W Byte

NA

NA

Stored in user-

editable NVM.

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