Tagged: #EV2106B01 #Drivers
Terry Xu.This is regarding the High-Side drivers and Low-side drivers. If a pin is switched high programmatically should it’s output be at 5V? Upon creating a simple program to toggle its state, its voltage changed from 0V to 2V. We tried several different pins (98,95,109) with and without a load but achieved the same result.
Do we need to set something in the program, or a sort of external pullup resistor?
Hi there,
Sorry that our tech team is off the office till tonight,
Please let me get back to you shortly.
Best,
Terry
1. Controller pin switch to level-high, then the output of pin should be 5V. It should be noted that the high side(on) is the power supply voltage; Low side(on) is 0V
2. You attempted to switch three ports, all of which were 0V-2V. That’s because the low side of port 95 and 109 was 0V when the port was on, and there is a diagnostic voltage of 2V when the port was off. However, pin 98 should be the power supply voltage when it was opened, and there was a diagnostic voltage of around 2V when it was closed.
3. Are you trying to get an PWM output? It is necessary to add a pull-down circuit on the high side and a pull-up resistor on the low side to form a PWM output circuit. Unfortunately, the high and low sides of our controller do not have this configuration.
What is diagnostic voltage in our case? Can we switch directly to 5V instead of this voltage?
Sorry that I think diagnostic voltage can’t be changed and in your case it’s still 2V.
Best,
Terry
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