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Known Limitations with CY4531/CY4541 EVKs Based on CCG EVK Baseboard Rev 04 or Earlier - KBA212600

Anonymous
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Known Limitations with CY4531/CY4541 EVKs Based on CCG EVK Baseboard Rev 04 or Earlier - KBA212600

Version: *A

Translation - Japanese: Rev 04 またはそれ以前の CCG EVK ベース基板をベースとした CY4531/CY4541 EVKで既知の制約について - KBA212600 - Community Translated ...

Question:

What are the known limitations with the CY4541/CY4531 EVKs which are based on Revision 04 or earlier of the CCG EVK baseboard?

Answer:

Limitation 1: The VBUS voltage may drop below vSrcNew* when a peer device draws more than 3 A on a Type-C port.

Workaround: It is recommended to restrict the maximum sink current to 3 A.

Limitation 2: During voltage transitions (for example going from 5 V to 9 V or vice-versa), the overshoot and undershoot on VBUS may exceed the max and min limits of vSrcValid* by up to 10%.

Workaround: None

* Refer to Table 7-22, Source Electrical Parameters of USB Power Delivery Specification, Revision 2.0, Version 1.1 for more details

Note 1: These limitations got fixed in the Revision 05 of the CCG EVK baseboard. Hence they are not applicable on the CY4531/CY4541 EVKs which are based on CCG EVK baseboard, Revision 05 or higher.

Note 2: The Revision number of the CCG EVK baseboard can be found on the PCBA as shown in Figure 1.

Figure 1. Identifying board revision number

1.pngContact Cypress Technical Support cytechsupport@cypress.com for additional details.

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‎Apr 25, 2016 03:24 AM
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