Product Information for S29GL256S90DHI020

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Andy201
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I am wondering at what temperature value would this part receive permanent damage and I was unable to find information on its max junction temperature value so if it could also be provided that would be helpful.

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1 Solution
BushraH_91
Moderator
Moderator
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750 replies posted 50 likes received 250 solutions authored

Hello,

Please see below

Tj= Ta + (θJA x Pd)

θJA = Junction-to-ambient thermal resistance (Theta JA) (datasheet)

Ta = Operating Ambient Temperature (datasheet)

Voltage max voltage of the device (datasheet)

Current: Max current defined in the datasheet)

Pd (Power dissipation) = Voltage (V) × Current (I)

Tj= Ta + (θJA x Pd)

    = 85°C  + (33 ℃/W x (3.6V * 60mA)

    = 92.1 °C

This is absolute max Tj.

Thank you

Regards,

Bushra

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BushraH_91
Moderator
Moderator
Moderator
750 replies posted 50 likes received 250 solutions authored

Hello 

For S29GL256S90DHI020

Tj = 92.1 °C

Thank you

Regards,

Bushra

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How did you come by this number is it in the datasheet or did you just calculate it using the thermal resistance and other values?

Also now that I have this number if I were to work above the operating range say my device is industrial so in the spec it says the max is 85 C, if I were to work above that what kind of issues would arise if you know?

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BushraH_91
Moderator
Moderator
Moderator
750 replies posted 50 likes received 250 solutions authored

Hello,

Please see below

Tj= Ta + (θJA x Pd)

θJA = Junction-to-ambient thermal resistance (Theta JA) (datasheet)

Ta = Operating Ambient Temperature (datasheet)

Voltage max voltage of the device (datasheet)

Current: Max current defined in the datasheet)

Pd (Power dissipation) = Voltage (V) × Current (I)

Tj= Ta + (θJA x Pd)

    = 85°C  + (33 ℃/W x (3.6V * 60mA)

    = 92.1 °C

This is absolute max Tj.

Thank you

Regards,

Bushra

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BushraH_91
Moderator
Moderator
Moderator
750 replies posted 50 likes received 250 solutions authored

Hello,

"Also now that I have this number if I were to work above the operating range say my device is industrial so in the spec it says the max is 85 C, if I were to work above that what kind of issues would arise if you know?"

Unfortunately it is hard to predict and recommended to follow the spec.

Thank you

Regards,

Bushra

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