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TPS92630-Q1: Query about TPS92630 parallel combination

Part Number: TPS92630-Q1
Other Parts Discussed in Thread: TPS92633,

We are looking on your feedback. Please answer our below alternate plan queries.

1. Before move to TPS92633 part may i try TPS92630 parallel combination as per application note at Page number 28, "Two TPS92630-Q1 Devices in Parallel for Large Loads".

2. What would be the behavior (LED off or LED intensity reduction) if the input voltage is between 6V to 9V or input voltage will be lesser than the device Vdrop voltage + (N*LED Typical forward voltage drop).

3. If LED off will be result of above case, then Is it possible to overcome the switch off condition in the above case.

4. We have Temperature compensation requirement. Tth will be 70 deg. To achieve this as per below image, 30K pull up to 3.3V reference introduced by using Zener diode and series Zener resistor combination. Please check whether it is ok or please suggest simple LDO part. (both 5V & 3V3 part is ok for us). As of ambient 70 deg only considered. Thermal simulation need to be done. As of now please consider board thermal rise as +15 deg.

5. Also please share Case studies of TPS92630 & TPS92633 for our application.

Thanks,

Kanthavel Kumaran