Hi Support team
1. TUSB4020BI-Q1 supports high speed, full speed, low speed mode. In the data sheet, you can find the current required to provide a port in high speed mode and two ports respectively. But there is no complete - speed, low speed data, can you help me with it? Because it has been found that most Hub ICs have different power consumption for different transmission speeds. In addition, the current need to see the maximum power consumption is when both ports are running at high speed, then when the data transmission ends, does the required current drop back to the suspended condition?
2. In the specification, you can see that the operating temperature is -40~105. When the junction temperature operation exceeds 105, will it cause IC damage? When the temperature is too high but has not been operated 105, what effect will it have on the IC? IC Will the characteristics and behavior change?
3. Following the first two questions, can we design a temperature detection mechanism? When the test is performed at a certain temperature, the performance of the IC can be reduced. For example, the speed of data transmission is reduced to reduce power consumption.
many thanks
