CISPR 25 Class-5 2.2-MHz rated 30-W automotive dual USB Type-C® charger reference design


Design files


This reference design is an EMI-optimized design for automotive USB Type-C®  charger with dual 15-W output. The TPS25850-Q1 is used as DC/DC regulator and port controller. The switching frequency is 2.2 MHz. The front-end filter is designed and PCB layout is optimized to pass stringent CISPR 25 Class-5 conducted Electromagnetic Interference (EMI) standards. This reference design has already been tested to CISPR 25 Class-5 conducted EMI standards, which accelerates customer design time.

  • Pass stringent CISPR 25 Class-5 conducted EMI standards
  • Dual USB Type-C® charger
  • 2.2-MHz switching frequency
Output voltage options PMP40723.1 PMP40723.2
Vin (Min) (V) 6 6
Vin (Max) (V) 26 26
Vout (Nom) (V) 5.17 5.17
Iout (Max) (A) 3 3
Output Power (W) 15.51 15.51
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology USB Switch USB Switch
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDT203.PDF (3973 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDM784.PDF (281 K)

Detailed schematic diagram for design layout and components

TIDM785.PDF (172 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDM787.ZIP (1249 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDM786.PDF (1005 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

USB Type-C & USB Power Delivery ICs

TPS25850-Q12.2-MHz, low-EMI, dual, 3-A USB Type-C charging ports converter with thermal management

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report CISPR 25 Class-5 2.2-MHz Rated 30-W Automotive Dual USB Type-C® Charger Ref. Jan. 07, 2021

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