2 LED Driver Key Parameters

Figure 8 shows the specific characteristics of a waveform that detail the performance of any LED driver. A LED driver should be both consistent and repeatable, meaning that the light output should reach the same no matter the driver level. Referring back to the figure, we can divide a LED driver waveform to 5 main areas. The five (5) Key Parameters include the following:

• Enable Delay [A]
• Rise Time [B]
• Disable Delay [C]
• Fall Time [D]
• Ripple [E]

Figure 8. 5 Key Parameters