This reference design uses a TPS25730S sink-only USB Type-C® power delivery (PD) controller in collaboration with a BQ25638 interintegrated circuit (I2C) controlled single-cell buck charger configured as a USB Type-C single-cell battery charger design targeted at portable personal electronic devices. The PD controller negotiates either a 5V and 3A or 9V and 3A contract from the USB-C input, and delivers this to the buck charger which generates a regulated 4.8V maximum to the system output and the battery output. The maximum output load is designed for 3A total, which can be split between the system and battery outputs with charge enabled or disabled.
A graphical user interface (GUI) is needed to configure certain setting in this design. The GUI can be downloaded through the BQSTUDIO page.
| Output voltage options | PMP23456.1 |
|---|---|
| Vin (Min) (V) | 5 |
| Vin (Max) (V) | 9 |
| Vout (Nom) (V) | 4.2 |
| Iout (Max) (A) | 3 |
| Output Power (W) | 12.6 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck- Integrated Switch |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | USB Type-C® and USB Power Delivery for 1S Li-Ion Battery Charger Reference Design | PDF | HTML | Nov. 06, 2024 |
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