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Cirrus Logic AN349 User Manual
An349
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Cirrus Logic AN349 User Manual | 14 pages
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Table of contents
Document Outline
1. Introduction
2. Description of Test Setup
2.1 Ballast Specifications & Requirements
3. Advantages of CS1601 over L6562
3.1 Smaller Boost Inductor
3.2 Lower Total Harmonic Distortion (THD)
3.3 Light Load Performance
3.4 Near Unity Power Factor
3.5 Lower Link Overshoot During Lamp Strike
4. Theory of Operation
4.1 Boost Inductor Size
5. Feature Set
5.1 Protection Feature Set
5.2 Performance Feature Set
5.3 Other Specifications
6. Migrating an Existing Design to Use the CS1601
6.1 Footprint Compatibility
6.2 BOM Changes Necessary to use CS1601
6.3 Boost Inductor Design
6.4 PCB Layout Changes
6.5 Auxiliary Supply Design
6.6 Noise Issues When Using CS1601 to replace L6562
6.6.1 IAC – PIN 3
6.6.2 IFB - Pin 1
7. Conclusion
8. Revision History
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