i.MX93/PCA9451 Power Control Using Slide Switch Hello, I am designing a custom board using i.MX93 and PCA9451. On the EVK, I noticed that the ONOFF pin is connected to a push button for power control. In my design, I would like to use a slide switch instead of a push button for power control. Could you provide any design examples for this approach, or explain how it should be implemented? Here is my current idea: Pull up the ONOFF pin of i.MX93 to the power rail. Leave the PMIC_ON_REQ output of i.MX93 floating, and connect the slide switch to the PMIC_ON_REQ input of PCA9451. Connect the PMIC_STBY_REQ output of i.MX93 to PCA9451. Any guidance or recommendations would be greatly appreciated. Thank you for your support. Best regards, tkato Re: i.MX93/PCA9451 Power Control Using Slide Switch Sorry for miss your thread, I will confirm it for you and will give you reply tomorrow. Re: i.MX93/PCA9451 Power Control Using Slide Switch This is not recommended, ONOFF pin has many function which is not on PMIC_ON_REQ pin, for example, 5s mandatory power-off, power-off interruption and so on.
anyway you can use PMIC_ON_REQ pin to implement simple power-up and power-down as you design.
Any questions contact us freely.
記事全体を表示