Overview
The MC33FS4503CAE is a highly integrated System Basis Chip (SBC) designed by NXP Semiconductors, specifically tailored for high-performance automotive applications. This chip is part of the FS45 family, which is known for optimizing energy consumption and providing robust power management solutions. It is particularly suited for automotive audio processing and other critical automotive systems, ensuring reliable and efficient power supply to microcontrollers (MCUs) and other components.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | MC33FS4503CAE |
| Power Supply | DC/DC pre-regulator and linear regulators |
| Linear Regulator Current | 0.5 A |
| SMPS Current Options | 0.8 A, 1.5 A, or 2.2 A |
| Voltage Range for MCU Core | 1.0 V to 5.0 V |
| Auxiliary Voltage Regulators | 5.0 V, 3.3 V for auxiliary functions or sensor supply |
| Keep Alive Memory Supply | 3.3 V in low-power mode |
| Temperature Range | Up to TA = 125 °C and TJ = 150 °C, compliant with AEC-Q100 Grade 1 automotive qualification |
| Communication Interfaces | CAN FD, LIN, SPI |
| Wake-up Sources | CAN, LIN, IOs, LDT |
Key Features
- Highly Flexible SMPS Pre-regulator: Supports non-inverting buck-boost and standard buck topologies.
- Linear Voltage Regulators: Dedicated to auxiliary functions, sensor supply, MCU Analog/Digital (A/D) reference voltage, and I/Os supply.
- Low-Power Modes: Includes a 3.3 V keep alive memory supply and multiple wake-up sources in low-power mode.
- Long Duration Timer: Capable of counting up to 6 months with a 1.0 s resolution.
- Functional Safety Compliance: Meets ISO 26262 standards through NXP's SafeAssure program.
- Multiplexed Output: Allows selection of analog parameters through SPI for connection to a MCU ADC.
Applications
The MC33FS4503CAE is primarily designed for high-performance automotive applications, including:
- Automotive Audio Processing: Provides reliable power management for advanced audio systems in vehicles.
- Automotive Control Units: Suitable for various control units requiring robust power supply and low-power modes, such as engine control units, infotainment systems, and safety systems.
- Functional Safety Systems: Compliant with ISO 26262, making it suitable for safety-critical automotive systems.
Q & A
- What is the primary function of the MC33FS4503CAE?
The MC33FS4503CAE is a System Basis Chip (SBC) designed to provide power to microcontrollers and optimize energy consumption in automotive applications.
- What types of voltage regulators does the MC33FS4503CAE include?
The chip includes DC/DC pre-regulators and linear voltage regulators, with options for 0.8 A, 1.5 A, or 2.2 A SMPS and 0.5 A linear regulators.
- What is the temperature range for the MC33FS4503CAE?
The chip is capable of operating up to TA = 125 °C and TJ = 150 °C, compliant with AEC-Q100 Grade 1 automotive qualification.
- Does the MC33FS4503CAE support communication interfaces?
Yes, it supports CAN FD, LIN, and SPI communication interfaces.
- What are the wake-up sources in low-power mode?
The chip includes multiple wake-up sources such as CAN, LIN, IOs, and LDT in low-power mode.
- Is the MC33FS4503CAE compliant with functional safety standards?
Yes, it is compliant with ISO 26262 standards through NXP's SafeAssure program.
- What is the purpose of the multiplexed output pin?
The multiplexed output pin allows the selection of analog parameters through SPI for connection to a MCU ADC.
- Can the MC33FS4503CAE be used in non-automotive applications?
While it is primarily designed for automotive applications, its robust features could make it suitable for other high-reliability, low-power applications, but it is not the primary intended use.
- How does the long duration timer function?
The long duration timer can count up to 6 months with a resolution of 1.0 s.
- Is the MC33FS4503CAE part of any product longevity program?
Yes, it is included in the NXP Product Longevity Program, ensuring a stable supply of products for embedded designs.
