6

Application information

This chapter is aimed to provide some application hints. The reference schematic, the PCB layout guidelines, the

minimum components to properly run the application and other aspects.

6.1

Reference schematic

Figure 14 shows the typical application schematic for the STWLC68. The values reported in Table 7 and Table 8

refer to typical Wireless Power Receiver applications capable of an output power of 2.5 W and 5W respectively.

Componen

t

Value

Manufacturer

Part Number

Notes

L1

11.8 µH

Wurth

760308101219

Receiving coil (Ls)

C1, C2, C3

47nF/50V

Murata

GRM155R71H473KE14D

Series resonant capacitor (Cs)

C4

100nF/50V

Murata

GCM155R71H104KE02D

Series resonant capacitor (Cs)

C5

1.8nF/50V

Murata

GRM155R71H182JA01D

Detection capacitor (Cd)

C8, C11

47nF/50V

Murata

GRM155R71H473KE14D

Rectifier bootstrap capacitors

C12

4n7/50V

Murata

GCM155R71H472KA37D

Main LR bootstrap capacitor

C6, C9

22nF/50V

Murata

GRM155R71H223KA12D

ASK modulation capacitors

C7, C10

47nF/50V

Murata

GRM155R71H473KE14D

Auxiliary ASK modulation capacitors

STWLC68

Application information

DS13131 - Rev 3

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