T1040 功耗最大不超过7W 为什么参考设计T1040RDB中 VDD/VDDC 电流设计要求35A?

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T1040 功耗最大不超过7W 为什么参考设计T1040RDB中 VDD/VDDC 电流设计要求35A?

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fuyi
Contributor I

T1040 功耗最大不超过7W   为什么参考设计T1040RDB中 VDD/VDDC 电流设计到了35A?出于什么考虑?我用10A的DC/DC可以替代吗?

另外 T1040 RDB中 电源使用的是AXT 电源  有12V    有仅5V输入的解决方案没有?

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alexander_yakov
NXP Employee
NXP Employee

1. The board design is done to be "universal" - we use similar schematic for boards for other processors, for example T1042RDB.

2. The board is typically available sumultaneously with first silicon release, so - the board is designed significantly before first silicon is available, when actual power consumption numbers are not known

Yes, you an redesign power supply, but but please do not forget to leave enough margin - 20-50%


Have a great day,
Alexander

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825 Views
fuyi
Contributor I

T1040  能否详细解释下这几个PIN作用

"SENSEVDDC",

"SENSEGNDC",

"SENSEVDD",

"SENSEGND"

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alexander_yakov
NXP Employee
NXP Employee

1. The board design is done to be "universal" - we use similar schematic for boards for other processors, for example T1042RDB.

2. The board is typically available sumultaneously with first silicon release, so - the board is designed significantly before first silicon is available, when actual power consumption numbers are not known

Yes, you an redesign power supply, but but please do not forget to leave enough margin - 20-50%


Have a great day,
Alexander

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

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