Dear DRV595 expert!
I have purchased the DRV595EVM module and was inteding to use it to drive a TEC module.
When testing the module seems to go into a fault state. It shut-s off for approcimately 1.2s.
The device is not warm since I can pit my finger on it and keep it there.
If I disconnect the JP3 it will remain in the off state. Based on that my understanding is that it is the over current detection happening.
I find this strange since I am far from the 7.5A trip point in the application.
I have two TEC's in series and test them by supplying a set of supply voltages.
The EVM module is configured as out of the box. I have connected the IN- to GND and IN+ is set so that I will get maximum current.
Starting at 27VDC I can get 4A.
When decreasing the voltage the current will also decrease however the failure keeps happening.
At 21VDC I have 3A but at the module still module shut's off.
At 17.7VDC I have 2.5A but unit still behaves intermittent and shut's off. Hower the failures seems to happen with less intensity.
At 14.2 VDC I have 2A and still have the problem.
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Could you please advice?
Another question:
EVM module is stated to handle 3A but device 4A. What is the limeting factor on the EVM board since the device can meet 4A?
Regards Anders
.