General description

The FS6500/FS4500 SMARTMOS 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 B).

The built-in CAN FD interface fulfills the ISO 11898-2(12) and -5(13) standards. The LIN interface fulfills LIN

protocol specifications 2.0, 2.1(22), 2.2(23), and SAE J2602-2(24).

High temperature capability up to TA = 125 °C and TJ = 150 °C, compliant with AEC-Q100 Grade 1 automotive qualification.

Features and benefits

• Battery voltage sensing and MUX output pin

• Highly flexible SMPS pre-regulator, allowing two topologies: non-inverting buck-boost and standard buck

• 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)

• Linear voltage regulator dedicated to auxiliary functions, or to sensor supply (VCCA tracker or independent),

5.0 V, or 3.3 V

• Linear voltage regulator dedicated to MCU Analog/Digital (A/D) reference voltage or I/Os supply (VCCA), 5.0 V,

or 3.3 V

• 3.3 V keep alive memory supply available in low-power mode

• Long duration timer, counting up to 6 months with 1.0 s resolution

• Multiple wake-up sources in low-power mode: CAN, LIN, IOs, LDT

• Five configurable I/Os

Applications

• Drive Train Electrification (BMS, Hybrid EV and HEV, Inverter, DC-DC, Alterno Starter)

• Drive Train - Chassis and Safety (Active Suspension, Steering, Safety Domain Gateway)

• Power Train (EMS, TCU, Gear Box)

• ADAS (LDW, Radar, Sensor Fusion Safety area)

• On board charger

• Motor control