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Knowledge Base Articles

What is the maximum distance between RX and TX coils?

What is the maximum distance between RX and TX coils?This depends on the coil design. Common designs are using 3mm to 5mm of gap. However, we have designed coils for 100W application with 2cm coil distance and with very good efficiency. In general, l...

LauraCx by ST Employee
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Are the ST wireless charging ICs Qi certified?

Are the ST wireless charging ICs Qi certified? What are the steps and costs involved in Qi certification?The Qi certification is for the end application and not the IC. The Qi certification mainly consists of compliance tests and interoperability tes...

LauraCx by ST Employee
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What is the best location to place an ECMF on PCB?

What is the best location to place an ECMF on PCB?What is the best location to place an ECMF on PCB? Our best recommendation is to put our ECMF close to the connector, however for some application we are open to discuss with customers about possible ...

LauraCx by ST Employee
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How does ECMF behave with external magnetic field?

How does ECMF behave with external magnetic field?How does ECMF behave with external magnetic field?, In an industrial environment, we can have in fact some strong magnetic field.There is no saturation of our ECMF happening because there is no magne...

LauraCx by ST Employee
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Is ECMF connected to both Tx and Rx lines of both sides?

Is ECMF connected to both Tx and Rx lines of both sides?You showed in the demo that ECMF is connected on both sides of a USB cable for example. Is ECMF connected to both Tx and Rx lines of both sides? I mean, does it filter Tx lines before signal tr...

LauraCx by ST Employee
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What is the purpose of Capacitor C3 in the block diagram?

What is the purpose of Capacitor C3 in the block diagram?Capacitor C3 is the bulk capacitor defined in the USB-C PD specification used to limit the min/max inrush current amplitude.The USB-C power delivery specification defines cSnkBulk and cSrcBulk ...

LauraCx by ST Employee
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Does the DRD (data switch) require DRP (power switch)?

Does the DRD (data switch) require DRP (power switch)? Does the DRD (data switch) require DRP (power switch)? Yes. It is mandatory by the standard.However, with TCPP02, although the product is SRC only and not DRP, it is possible to use DRD (Devic...

LauraCx by ST Employee
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