MAX16031 Evaluation Kit

4

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The Settings dialog (Figure 3) can set the IN input-volt-

age range to one of three settings: 1.4V, 2.8V, and

5.6V. To enable channel monitoring, make sure the

Enable Fault Detection checkbox is selected. The

Disable Interrupts and Outputs for group box allows

faults on the primary or secondary thresholds to be

“masked,” which prevents them from triggering an

SMBus™ interrupt or asserting a fault output. The Save

State to EEPROM on group box selects which type of

fault can trigger a nonvolatile fault save operation.

Each IN_ input can be connected to the on-board

MAX5306 DAC using switch bank S1. This allows the

voltage at the IN_ input to be manually controlled through

the EV kit software. Click the link next to DAC Voltage to

set the voltage of the DAC in the 0 to 2.5V range. The

DAC voltage can also be changed by dragging the dot-

ted green line, shown in the chart-recorder view.

To set the primary or secondary overvoltage or under-

voltage thresholds for a particular channel, click the

appropriate underlined number next to that parameter.

The primary thresholds can also be modified by drag-

ging the dotted red lines in the chart-recorder view. The

secondary thresholds can be changed the same way;

both appear as dotted yellow lines.

Two fault flag indicators are associated with each chan-

nel. The upper one corresponds to the primary fault

thresholds; the lower one corresponds with the sec-

ondary fault thresholds. If an undervoltage or overvolt-

age fault occurs, one or both these indicators will turn

red and remain so even after the original fault condition

is removed. To clear a fault indicator, click the indicator

and select Clear Fault or Clear All Faults on the menu

that appears.

Each chart-recorder view shows the voltage on the cor-

responding IN_ input with a solid green line. To zoom in

and zoom out, click the magnifying glass icons in the

upper right of the chart-recorder view. Another way to

zoom in and out is to click and “drag” a selection rec-

tangle. Drag from upper left to lower right to zoom in,

and from lower right to upper left to zoom out.

Two IN inputs can be paired to form a combined differ-

ential input. Click any of the Single Ended links in the

center of the window to pair two inputs together, or to

separate two paired inputs.

Figure 3. Settings Dialog

SMBus is a trademark of Intel Corp.