EV2106B01 Output Drivers

[UOMRacing]

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?

[Terry Xu]

Hi there,

Sorry that our tech team is off the office till tonight,

Please let me get back to you shortly.

Best,

Terry

[Terry Xu]

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.

[UOMRacing]

What is diagnostic voltage in our case? Can we switch directly to 5V instead of this voltage?

[Terry Xu]

Sorry that I think diagnostic voltage can’t be changed and in your case it’s still 2V.

Best,

Terry

[Author]

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