MC33910
NXP
The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC)
Application NoteNxp
AN5063: MC33910/11/12 Filtering Capacitor for VS1
Application note for implementing a VS1 input pin filtering capacitor on NXP MC33910/11/12 SBCs to prevent resets caused by specific falling slew rate spikes.
Overview
This application note provides technical guidance for using a filtering capacitor on the VS1 input pin of NXP MC33910, MC33911, and MC33912 System Basis Chips (SBC). It addresses a condition where the device may generate unintended resets when spikes with a falling slew rate between -0.9 V/μs and -1.4 V/μs are applied to the VS1 pin. The document outlines how to adjust the Equivalent Series Resistance (ESR) of the filtering capacitor (C1) to ensure the application is protected from these reset conditions by maintaining slew rates outside the sensitive range.
Use Cases
- Automotive electronics design
- LIN protocol communication systems
- MCU-based system power management
- Voltage spike filtering and protection
- System reset prevention in SBC applications
Topics
NXP
MC33910
MC33911
MC33912
System Basis Chip
SBC
VS1 pin
filtering capacitor
falling slew rate
reset condition
LIN transceiver
voltage regulator
Referenced Parts
MC33911
NXP
The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC)
MC33912
NXP
The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC)
| MC33910 | NXP | The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC) |
| MC33911 | NXP | The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC) |
| MC33912 | NXP | The MC33910/11/12 family is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC) |