LM3444-230VAC NSC [National Semiconductor], LM3444-230VAC Datasheet - Page 14

• Manufacturer Part Number: LM3444-230VAC
• Description: 8W Isolated Flyback LED Driver Industrial and Commercial Lighting
• Manufacturer: NSC [National Semiconductor]

www.national.com
Electromagnetic Interference (EMI)
The EMI input filter of this evaluation board is configured as
shown in the following circuit diagram.
In order to get a quick estimate of the EMI filter performance,
only the PEAK conductive EMI scan was measured and the
Note 4: CISPR 15 compliance pending
FIGURE 2. Peak Conductive EMI scan per CISPR-22, Class B Limits
FIGURE 1. Input EMI Filter and Rectifier Circuit
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data was compared to the Class B conducted EMI limits pub-
lished in FCC – 47, section
15.(Note
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