# RT9525 Reference Design ## Description This is a reference design project for a battery charger based on the RT9525 battery charger IC from Richtek. Some key components are the IC itself (U1), various capacitors (like C1, C2, C3, C4), resistors (R1, R2, R3, R4), LEDs, and connectors. The circuit connects via battery, system voltage and various enable signals. #project #Template #charger #referenceDesign #batterycharger #template #bms #monitor #RT9525 #richtek #reference-design #polygon ## Project Details - **Owner:** vasy_skral - **Created:** 2/8/2024 - **Last Updated:** 3/6/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Copies:** 4 ## Key Components ### J1 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### J2 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J3 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### LED1 — [LED-0402-Template](https://www.flux.ai/vasy_skral/led-0402-template~zvz.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED-0402-Template](https://www.flux.ai/vasy_skral/led-0402-template~zvz.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### U1 — [RT9525](https://www.flux.ai/vasy_skral/rt9525~uyf.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: RT9525GQW - Datasheet URL: https://www.richtek.com/SaveDownload.aspx?specid=RT9525 - Manufacturer Name: Richtek USA Inc. - Part Type: Integrated Circuit **Pins:** - ~CHG [pin 9] - ~EN [pin 4] - ~PGOOD [pin 7] - BAT [pin 3] - BAT [pin 2] - EN1 [pin 6] - EN2 [pin 5] - EP [pin 17] - GND [pin 8] - ISETA [pin 16] - NC [pin 12] - SYS [pin 11] - SYS [pin 10] - SYSOFF [pin 15] - TIMER [pin 14] - TS [pin 1] - VIN [pin 13] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasy_skral/rt9525-reference-design~7a](https://www.flux.ai/vasy_skral/rt9525-reference-design~7a).* --- *Generated from [https://www.flux.ai/vasy_skral/rt9525-reference-design~7a](https://www.flux.ai/vasy_skral/rt9525-reference-design~7a)*