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TSWIRX-5V-EVM   

 

www.semtech.com

 

11 of 14 

User Guide 

 

 

Rev 1.00 

 

E. Board Layers 

The  TSWIRX-LI-EVM  PCB  is  based  on  a  four  layer  design  as  shown  below.  The  ground  plane  in  layer 
two is recommended to reduce noise and signal crosstalk. The EVM placed all components on the top of 
the  board  for  easier  evaluation  of  the  system.  End  product  versions  of  this  design  can  be  made 
significantly  smaller  by  distributing  components  on  both  sides  of  the  board.  The  Gerber  files  for  this 
artwork can be downloaded from the Semtech web page. 

 

 

   

                  

     

Top Layer 

 

 

 

 

      Ground Plane 

 

  

                  

       

Signal Layer 

 

 

 

 

      Bottom Layer 

Summary of Contents for TSWIRX-LI-EVM

Page 1: ...www semtech com WIRELESS CHARGING User Guide TSWIRX LI EVM Wireless Charging Receiver with Li ion Battery Charger Rev 2 00...

Page 2: ...of this User Guide is to provide a fast easy and thorough method to experiment with and evaluate the Semtech solutions for wireless charging systems Sufficient information is provided to support the e...

Page 3: ...d A transmitter will only provide power when a receiver is present and only produce the amount of power requested by the receiver The intelligent management of the wireless power transmission process...

Page 4: ...M is provided to make the process as efficient as possible The key technology in the EVM is the Semtech TS51223 which is a fully integrated wireless power receiver for low power wearable applications...

Page 5: ...itter and a transaction begins The transmitter provides a small amount of power to the newly discovered receiver so it can tell the transmitter what its power requirements are At the completion of thi...

Page 6: ...e voltage and a DC ammeter in series with the VOUT line to monitor the chaging current Set levels to allow for up to 10 volts and 1 amp to be observed The LED should be light green which indicate char...

Page 7: ...enna Transmit primary coil providing power to the receiver part of TSWITX G2 EVM Antenna Receive secondary coil in the flux field of the transmit antenna part of the 1 MHz resonant tank Rectifier conv...

Page 8: ...GND GND 4 7uH L1 GND 1nF 50V C6 1nF 50V C7 10K R3 46K R1 GND NP C1 PDC 1 FREQ 2 ALERT 3 MOD_CFG 5 MOD_EN 4 GND 6 J3 External MCU Optional 75K R2 4 7K R4 PDC GND 1 2 Out J2 BATTERY VAC1 A1 PDC A2 SW C2...

Page 9: ...B4 GND B1 PDC B2 SW C3 COMM1 A3 GND C1 SW C4 FREQ D3 FB A4 GND D1 PDC D2 ALERT B3 MOD_CFG D4 VAC2 E1 PDC E2 COMM2 E3 MOD_EN E4 U1 TS51223 GND GND 47nF C12 GND GND 60K R5 GND 22uF 10V C9 X5R capacitors...

Page 10: ...3 C3 0402 100nF 25V 0402 1 4 C4 0603 10nF 50V X7R 0603 1 5 C5 C12 0402 47nF 10V 0402 2 6 C6 C7 0402 1nF 50V 0402 2 7 C8 C9 C10 C11 0603 22uF 10V X5R 0603 4 8 C20 0603 2 2uF 10V X5R 0603 1 9 L1 0805 4...

Page 11: ...TSWIRX 5V EVM www semtech com 10 of 14 User Guide Rev 1 00 D Board Layout The diagram below shows the locations of the components used in the TSWIRX LI EVM PCB...

Page 12: ...nded to reduce noise and signal crosstalk The EVM placed all components on the top of the board for easier evaluation of the system End product versions of this design can be made significantly smalle...

Page 13: ...d As such the part number can be read as follows Prefix characters 1 2 Company TS Triune Semtech 3 4 Environment DM Dual Mode WI Wearable Infrastructure 5 6 Type TX Transmit RX Receive Mid section Dev...

Page 14: ...m power management wireless charging ics You may also scan the bar code to the right to go to the above web page There you can find the downloadable copies of the schematic BOM and board artwork as we...

Page 15: ...IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESULT IN PERSONAL INJURY LOSS OF LIFE OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD...

Page 16: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Semtech TSWIRX LI EVM...

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