DS250DF210: thermal simulation under active mode

Kay Chen53

Expert 2225 points

Part Number: DS250DF210

Hi there:

we'd like to check about the thermal protect about DS250DF210 for the thermal simulation of our customer.

the condition as following:

Ambient Temp: 45 degree

under active mode with max current consumption (432mA specific in the spec with full enable)

estimation power: 432mA * 2.5V = 1.08W

1. what limitation of this model when operate full enable active mode.?

2. the application would be inside the case and with high ambient temp surrounded, dose full enable active mode will trigger the OTP?

over 7 years ago

0 Kay Chen53 over 7 years ago

Expert 2225 points

update application: AP router /Ethernet switch

0 Nasser Mohammadi over 7 years ago in reply to Kay Chen53

TI__Guru* 93670 points

Hi Kay,

Please refer to the DS250DF210 data sheet maximum junction temperature and theta JA(Junction to Ambient thermal resistance) for the PCB you are planning to use. You can multiply your power consumption with Theta JA. Then you add this result to your maximum ambient temperature(45 deg C?). This result should be less than maximum junction temperature noted in the data sheet.

Regards,,nasser

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DS250DF210: thermal simulation under active mode