Datasheet

ADP1048-600-EVALZ PRD 1363

Rev. 1.3 | Page 5 of 26

SETTING FILES AND EEPROM

The ADP1048 communicates with the GUI software using the I2C bus.

Digital

Block

I2CRAMEEPROM

USB to I2C

Interfac e

Adapter

ADP1048

GUI

Board Setup

File

Settings File

Figure 3 - ADP1048 and GUI interaction

The register settings (having extension .48r) and the board settings (having extension .48b) are two files that are associated

with the ADP1048 software. The register settings file contains information that govern the functionality of the part such as the

over voltage and over current limits, softstart timing, PWM settings etc. The ADP1048 stores all its settings in the EEPROM.

When the ADP1048 is connected to the USB adapter the LDO powers the I.C. and the GUI downloads the settings from the

registers of the ADP1048 so that the state of the part is known. It is possible to save these settings in a file for later use. Older

The EEPROM on the ADP1048 can contain the information about the board, such as current sense resistor, output inductor

and capacitor values. This information is also stored in board setup file (extension .48b) and is necessary for the GUI to

display the correct information in the ‘Monitor’ tab as well as ‘Filter Settings’ window. Always make sure that the correct board

file has been loaded for the board currently in use.

Each ADP1048 chip has trim registers for the temperature, input current and the output voltage and input voltage. These can

be configured during production and are not overwritten whenever a new register settings file is loaded. This is done in order

to retain the trimming of all the ADCs for that corresponding environmental and circuit condition (component tolerances,

thermal drift, etc.).