Summary

UM0425

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The brightness mode setting (red circle in Figure 10) can be changed to variable. Variable

brightness mode means that each 7-segment digit and discrete LED brightness can be

controlled individually and independently of each other. The default variable brightness level

for all the digit and discrete LEDs is 1/16.

Modify the variable brightness level (red circle in Figure 10) for each individual 7-segment

digit and discrete LED, and the 7-segment display and discrete LED brightness change

accordingly.

Segments for 7-segment display can also be used for discrete LED and vice versa.

Segments for 7-segment display and discrete LED operate in the same way. The only

difference is that in variable brightness mode, the brightness of segments for 7-segment

displays are controlled in groups of eight, which is per digit, whereas discrete LED segment

brightness is controlled individually.

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Summary

The STLED316S is the right solution for front panel LED controller/drivers. With its

adjustable brightness level, 3% current matching, integrated front panel key detection, and

low stand-by current, it enhances performance and at the same time simplifies front panel

design.

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Revision history

Table 1.

Revision history

Date

Revision

Changes

05-Jun-2007

1

First issue