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1 Ps/DIV
VA
500 mV/Div
ILED
5 mA/Div
VC1
1V/Div
SW
10V/Div
4 Ps/DIV
VC1
2V/Div
VA
500 mV/Div
ILED
50 mA/Div
Typical Evaluation Board Performance www.ti.com
Figure 7. Typical Dimming Waveforms Figure 8. Boost Switching Waveforms
(1kHz at 1% duty)
8
AN-1764 LM3431 Evaluation Board SNVA309A–January 2008–Revised May 2013
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