Current Consumption of V15 Pin S32K322 100 Pin and Example code

Chinnan — Thu, 05 Oct 2023 12:37:22 GMT

Hi,

What is the current consumption of V15 Pin in S32K322 100 Pin HDQFP?

How does the VRC_Ctrl pin regulate V15?

How to calculate the Ballast transistor current consumption? can we use the SOT 23 Package for the transistor?

@S32K322

Re: Current Consumption of V15 Pin S32K322 100 Pin and Example code

VaneB — Mon, 09 Oct 2023 17:33:21 GMT

- What is the current consumption of V15 Pin in S32K322 100 Pin HDQFP?

It is defined in the device’s datasheet Table 17 onwards.

- How does the VRC_Ctrl pin regulate V15?

The following information is provided as generic linear regulator functionality.

To maintain a constant output voltage, the linear regulator adjusts the pass device resistance by comparing the internal voltage reference to the sampled output voltage and then driving the error to zero.

- How to calculate the Ballast transistor current consumption? Can we use the SOT 23 Package for the transistor?

Refer to section 2.7.1.1 (Selecting the NPN external ballast transistor) of the Hardware Design Guidelines for S32K3 Microcontrollers.

B.R.

VaneB

topic Current Consumption of V15 Pin S32K322 100 Pin and Example code in S32K

Current Consumption of V15 Pin S32K322 100 Pin and Example code

Re: Current Consumption of V15 Pin S32K322 100 Pin and Example code