Fan Circuit Design Support
a fan using a 550 dcmotor and three lithuin battery with built in type c charger the ic ip2326
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You want a fan circuit using:
- 550 DC motor
- Three lithium batteries
- Built-in USB Type-C charger
- IP2326 charging IC
What remains to be done once ACUs are available:
- Confirm battery configuration: 3 cells in parallel 1S3P or 3 cells in series 3S. This is critical because the charger and motor driver design are completely different.
- Check the IP2326 datasheet to confirm whether it supports your battery arrangement and required charge current.
- Add the USB-C input, charger IC, battery protection/power path, motor switch or speed controller, 550 motor connector, fuse/protection, and decoupling.
- Run electrical checks and then proceed to PCB layout.
Important safety note: three lithium cells need proper charging, protection, and balancing if used in series. Do not connect them directly to a charger IC unless the IC is designed for that exact cell configuration.
Choose 1S3P pack
Choose 3S pack
Check IP2326 datasheet
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