PMP20249 is an EMI optimized design for dual automotive USB charger system utilizing the LMS3635 and LMS3655 regulator ICs (400kHz fully-integrated synchronous buck for automotive application) and TPS2549 USB switch (TPS2549-Q1 automotive USB charging port controller with integrated power switch & cable compensation). The design accepts an input voltage range of 6V to 18V and provides the outputs of 5V@3.5A and 5V@2.5A. The design has a differential EMI filter, and has been tested for and passed CISPR25 Class 4 conducted EMI limits without shileding, a common mode choke, or a ferrite bead.
| Output voltage options | PMP20249.1 |
|---|---|
| Vin (Min) (V) | 6 |
| Vin (Max) (V) | 18 |
| Vout (Nom) (V) | 3.5 |
| Iout (Max) (A) | 2.5 |
| Output Power (W) | 8.75 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Buck- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
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 | CISPR 25 Class 4 Rated Design for Dual Automotive USB Charger Reference Design | Sep. 11, 2017 |
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