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1. Description
The MC33FS4503CAE devices are a multi-output, power supply, integrated circuit, including CAN Flexible Data (FD) and/or LIN transceivers, dedicated to the automotive market. Multiple switching and linear voltage regulators, including low-power mode (32 μA) are available with various wake-up capabilities. An advanced power management scheme is implemented to maintain high efficiency over a wide range of input voltages (down to 2.7 V) and output current ranges (up to 2.2 A). The FS6500/FS4500 includes configurable fail-safe/fail silent safety behavior and features, with two fail-safe outputs, becoming a full part of a safety oriented system partitioning, to reach a high integrity safety level (up to ASIL D). The built-in CAN FD interface fulfills the ISO 11898-2(13) and -5(14) standards. The LIN interface fulfills LIN protocol specifications 2.0, 2.1(23), 2.2(24), and SAE J2602-2(25). High temperature capability up to TA = 125 °C and TJ = 150 °C, compliant with AECQ100 Grade 1 automotive qualification.
2. Features
1. Battery voltage sensing and MUX output pin
2. Highly flexible SMPS pre-regulator, allowing two topologies: non-inverting buck-boost and standard buck
3. Family of devices to supply MCU core from 1.0 V to 5.0 V, with SMPS (0.8 A, 1.5 A or 2.2 A) or LDO (0.5 A)
4. Linear voltage regulator dedicated to auxiliary functions, or to sensor supply (VCCA tracker or independent), 5.0 V, or 3.3 V
5. Linear voltage regulator dedicated to MCU Analog/Digital (A/D) reference voltage or I/Os supply (VCCA), 5.0 V, or 3.3 V
6. 3.3 V keep alive memory supply available in low-power mode
7. Long duration timer, counting up to 6 months with 1.0 s resolution
8. Multiple wake-up sources in low-power mode: CAN, LIN, IOs, LDT
9. Five configurable I/Os
3. Applications
1. Drive Train Electrification (BMS, Hybrid EV and HEV, Inverter, DC-DC, Alterno Starter)
2. Drive Train - Chassis and Safety (Active Suspension, Steering, Safety Domain Gateway)
3. Power Train (EMS, TCU, Gear Box)
4. ADAS (LDW, Radar, Sensor Fusion Safety area)
4. Pin configuration
