120V AC 200W, 90% Efficiency, Interleaved Flyback for Battery Charging Applications Reference Design
TIDA-00200
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Key Document
- 120-V AC, 200-W, 90% Efficiency, Interleaved Flyback for Battery Charging (Rev. A)
(PDF 4176 KB)
12 May 2016
Description
The TI Design TIDA-00200 proposes an interleaved flyback topology for battery charger applications that require an output power level of ~200W with a minimized bill of material. Besides the actual electronic components the efforts for cooling are a major contributor to the overall design cost. By taking advantage of the LM5032 High Voltage Dual Interleaved Current Mode Controller the design accomplishes great efficiency of 90% at full load and at the same time spreads out the heat for greatly reduced cooling efforts. A fan is typically not needed; the need for smaller form factor heat sinks provides additional design flexibility.
Features
• Input: 100V-120V +/- 10% AC 50/60Hz
• Output Voltage 21V (5 Li-Ion battery cells), up-to 9.5 A charge current
• 90% Efficiency
• Interleaved Flyback Topology based on LM5032 High Voltage Dual Interleaved Current Mode Controller
• Programmable Line Under-Voltage Lockout & Cycle-by-cycle Current Limit
• Feedback based on TLC272 Dual Single Supply Operational Amplifier
See the Important Notice and Disclaimer covering reference designs and other TI resources.