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YG1
Level 1
Level 1
First like received 5 replies posted 10 sign-ins

Hi Expert,

I see in d/s below max power supply parameter, which is 40V. And I also fins the statement below the table and I don't really understand what is means. From the table, 40V means that the device can endure 40V voltage and isn't damaged. Is there any lasting time restriction for the 40V? If 40V is applied for a long time, like 1 hour, will the device be damaged? Is there any standard, like ISO7637, that can explain this parameter? Thanks for youe help!

YG1_0-1681265331389.png

YG1_1-1681265389914.png

BR,

YG

 

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1 Solution
LinGuohui
Moderator
Moderator
Moderator
500 replies posted 50 likes received 250 solutions authored

Hi YG,

Below 40V is a normal power supply voltage, and will not be be demaged within the range of -0.3-40V. This is same as other ICs such as MCU. Normally, the VDD of an MCU is 5.5V, which means that VDD is below 5.5V will not damage the MCU.

What you need to pay attention to is Supply voltage range for normal operation . This voltage range is normal operating voltage. Above this range the IC will enter overvoltage protection .

LinGuohui_0-1681371591400.png

 

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3 Replies
LinGuohui
Moderator
Moderator
Moderator
500 replies posted 50 likes received 250 solutions authored

Hi @YG1 

By reading the datasheet, you should notice this :Not subject to production test, specified by design. 40V is specified by design. The IC cannot be damaged under 40V basic IC design.

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YG1
Level 1
Level 1
First like received 5 replies posted 10 sign-ins

Hi LinGuohui,

Thanks for reply! Then how about real test result under 40V? Do you have related test report? Thanks.

BR,

YG

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LinGuohui
Moderator
Moderator
Moderator
500 replies posted 50 likes received 250 solutions authored

Hi YG,

Below 40V is a normal power supply voltage, and will not be be demaged within the range of -0.3-40V. This is same as other ICs such as MCU. Normally, the VDD of an MCU is 5.5V, which means that VDD is below 5.5V will not damage the MCU.

What you need to pay attention to is Supply voltage range for normal operation . This voltage range is normal operating voltage. Above this range the IC will enter overvoltage protection .

LinGuohui_0-1681371591400.png

 

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