Hi team,
My customer use the DRV595 as a TEC driver.
Below is the schematic.
The purple means not install.
So after power on the device, they will use the MCU to pull the SDZ to high.
if the voltage between the IN+ and IN- is 1V, when the SDZ goes to high, the device will go into Fault state.
if the voltage between the IN+ and IN- is 0.5V, when the SDZ goes to high, the device works well, and then they also can change the voltage between IN+ and IN- to 1V.
Can you help to analyze if this is normal, and is there some limitation we need to take into consideration when pull up the SDZ pin?
Lacey
Thanks a lot!