OTT set-top box is widely in families nowadays. It can offer video service through internet,and the terminal is electrical equipment. To display the videos with higher resolution(e.g. 4k resolution,HDR and so on),higher performance of set-top box and the thermal solution is required.
To optimize the original solution: under the ambient temperature of 25℃,the temperature of master chip should not be higher than 80℃(which means rise of temperature should not be higher than 55℃).
This thermal simulation below is based on the product information provided by the customer.
Parameters setting of thermal simulationBelow parameters are provided by the customer
ResultsConclusion: With Asink's solution,at the ambient temperature of 25℃,the temperature of master control chip can be controlled at 77.7℃ (rise of temperature: 52.7℃) to meet the customer's need.
Through optimization of the heat sink,the cost can be lowered and weight can be reduced while keep the same thermal performance.