System Level Power Reference Design for A13 Automotive Wireless Charger Transmitter

(ACTIVE) PMP10709

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Key Document

Description

PMP10709 is a system optimized 50 W power designs for A13 Wireless Charger Transmitter used in automotive system. The design has various front end automotive protections such as Load dump through TVS (ISO pulse testing), Reverse Voltage (Through PFET’s body diode), Battery Disconnect Switch with OVP protection (PFET). PMP10709 is primarily four Switch synchronous Buck – Boost design, which supports wide Input voltage range (7V-20V) and delivers any output from 1V-10V based on DAC output of the A13 Wireless Charger. The DAC output changes from 1V to 3.3V which in turn changes the output voltage from 10V to 1V (on the fly) as needed by the algorithm of A13 wireless charger’s transmitter. This design utilizes best in Class Synchronous four Switch Buck Boost Controller LM5175. The design accepts an input voltage of 7Vin to 20Vin and provides the output of 1V- 10V@5 A. Output current never exceeds 5A to protect the charging Coil. The average current regulation loop of the IC at the output is used for this protection.

Features
  • Designed for Wide Vin Automotive condition
  • In compliance with the ISO pulse test using TVS
  • Switching frequency at 400kHz
  • Reverse Protection through PFET
  • Series Fault protection FET with OVP
  • Tested on Actual A13 Wireless Charger Transmitter

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


      



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    Bill of Materials (BOM)

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    Parametrics
     PMP10709.1
    (Output Voltage 1)
    Vin (Min) (V)7
    Vin (Max) (V)20
    Vout (Nom) (V)10
    Iout (Max) (A)5
    Output Power (W)50
    Isolated/Non-IsolatedNon-Isolated
    Input TypeDC
    TopologyBuck Boost- 4 Switch

    TI Devices (4)

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    Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
    CSD17573Q5B  CSD17573Q5B 30 V, N-Channel NexFET Power MOSFET   MOSFETs  Sample & Buy Not Available
    CSD18531Q5A  60V N-Channel NexFET Power MOSFETs, CSD18531Q5A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
    LM5175  42V Wide Vin 4-Switch Synchronous Buck-Boost Controller  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules
    TLVH431  1.5% Low-Voltage Wide-Operating Current Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available

    CAD/CAE symbols

    Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
    CSD18531Q5A VSONP (DQJ)| 8 Download
    LM5175 Download Download
    Download Download
    TLVH431 Download Download
    Download Download
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    Technical Documents

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

    User guides (1)
    Title Abstract Type Size (KB) Date Views TI Recommends
    PDF 12204 09 Sep 2015 19
    Design files (4)
    Title Abstract Type Size (KB) Date Views
    ZIP 1306 09 Sep 2015 9
    PDF 25 09 Sep 2015 8
    PDF 400 09 Sep 2015 23
    PDF 309 09 Sep 2015 16

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