3.1 Color Range

The TPS62260LED-338 EVM with the default software does not support the entire range of colors described by the CIE chromaticity diagram, but instead supports a reduced subset. This approach greatly reduces the design effort while simultaneously providing a range of possible colors spanning the spectrum. Figure 3-1 shows the CIE chromaticity diagram representing the range of possible colors; the inner triangle represents the reduced range of colors supported by the EVM with the default software.

When the EVM scrolls through its range of colors, it effectively traces the edges of the inner triangle shown in Figure 3-1. As can be seen from this triangle, when tracing the edges clockwise this color transitions from blue to green, through yellow and orange to red, and then from red through purple back to blue.