CISPR 25 Class 4 Rated Design for Dual Automotive USB Charger Reference Design

(ACTIVE) PMP20249

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

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.

Features
  • Wide-Vin front end power supply for automotive USB charger system with dual 12.5W outputs
  • Off-battery operation with positive and negative over-voltage transient protection
  • Passed CISPR25 Class 4 conducted EMI test
  • All devices have an AEC-Q100 qualified version available
  • All devices switch outside of the AM and FM bands

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP20249.1
(Output Voltage 1)
Vin (Min) (V)6
Vin (Max) (V)18
Vout (Max) (V)5
Vout (Nom) (V)3.5
Iout (Max) (A)2.5
Output Power (W)8.75
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMS3635-Q1  3.5A /5.5A, 36V Synchronous, 400kHz, Step-Down Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LMS3655  5.5A, 36V Synchronous, 400kHz, Step-Down Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LMS3655-Q1  3.5A /5.5A, 36V Synchronous, 400kHz, Step-Down Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS2549-Q1  USB Charging Port Controller  USB Power and Charging Port Controllers  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 2761 01 Sep 2017
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1165 13 Jan 2017 68
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 400 11 Sep 2017 12
ZIP 5418 11 Sep 2017 20
PDF 1023 11 Sep 2017 18
PDF 104 11 Sep 2017 12
PDF 101 11 Sep 2017 22
PDF 152 11 Sep 2017 74


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki