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Knowledge Base Articles

Can DRP support sink and source concurrently?

Can DRP support sink and source concurrently? Can DRP support sink and source concurrently? Depending on what is connected to the port, only one role is selected at a single time by a DRP port.  What is the cost increase for Dual Port compared t...

LauraCx by ST Employee
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why is there an external ESD diode on the VBUS line

If TCPP01-M12 integrates ±8 kV ESD protection on VBUS, why is there an external ESD diode on the VBUS line in the reference schematic?Yes, the TCPP01-M12 integrates ESD protection on VBUS and CC lines. It is compliant with IEC 61000-4-2 Level 4 with ...

LauraCx by ST Employee
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What exactly is the VCONN pin?

What exactly is the VCONN pin?A USB Type-C™ connector has two Configuration Channel pins (CC1 and CC2) used for PDO (Power profile) negotiation.Only one of these two pins is active during the communication; the other one can be used to power a small ...

LauraCx by ST Employee
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When do I need 1 or 2 MOSFETS for my load switch on VBUS?

When do I need 1 or 2 MOSFETS for my load switch on VBUS?Everything is linked to the MOSFET's body diode that can let current flow if there is a voltage or a residual voltage.For example, in a provider path for DRP applications, you always need two M...

LauraCx by ST Employee
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What is the best location for the TCPP on a PCB?

What is the best location for the TCPP on a PCB?For efficient ESD protection, place the TCPP as close as possible to the USB-C connector.Also make sure that the ESD capacitor is as close as possible to the TCPP’s CBIAS pin. 

LauraCx by ST Employee
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