AM2182

Motor Driver IC

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smaller packages and likely would result in cooler readings than the small

thermocouple method. Consequently, to match between spot area and package

surface size is important while measuring Tt with IR sport method.

Step 3 : calculating power dissipation by

Step 4 : Estimate Tj value by

Tj=

Ψjt x P+Tt

Step 5: Calculated

Θja value of actual PCB by the known Tj

Maximum Power Dissipation (de-rating curve) under JEDEC PCB & actual PCB