The ST engine management systems (EMS) portfolio covers the analog and mixed-signal functions of modern Internal Combustion Engine (ICE) control: injection, ignition, communication, and power supply. The portfolio includes high-resolution sensor interfaces, dedicated voltage regulators for MCU and sensor rails, and protected drivers for injectors, relays, and lamps. Functions are available either as dedicated-function ICs or as multifunction U-chip devices that combine power management, communication, and actuation in a single package, reducing component count and PCB area in the ECU. ST EMS solutions cover ICE applications from single-cylinder motorcycle and small-engine platforms to four-cylinder passenger car powertrains, in both gasoline and diesel.
The ST engine management systems (EMS) portfolio covers the analog and mixed-signal functions of modern Internal Combustion Engine (ICE) control: injection, ignition, communication, and power supply. The portfolio includes high-resolution sensor interfaces, dedicated voltage regulators for MCU and sensor rails, and protected drivers for injectors, relays, and lamps. Functions are available either as dedicated-function ICs or as multifunction U-chip devices that combine power management, communication, and actuation in a single package, reducing component count and PCB area in the ECU. ST EMS solutions cover ICE applications from single-cylinder motorcycle and small-engine platforms to four-cylinder passenger car powertrains, in both gasoline and diesel.
Product types
multifunction ICs
Integrating power supply, injector and ignition drivers, and CAN/LIN/MSC communication on a single device for engines up to four cylinders.
Multivalve predriver for external MOSFETs, with peak-and-hold current control and integrated DC-DC boost for GDI and diesel injector profiles.
Single-package controllers for one- and two-cylinder applications, combining voltage regulation with drivers for injectors, relays, O₂ sensor heaters, and stepper motors.
Quad gate driver for diesel cold-start systems, with on-chip current monitoring, PWM control, and per-channel diagnostics.
Single-channel ignition driver with embedded IGBT power stage, coil current limiter, current-threshold diagnostic output, and soft-shutdown on thermal or overvoltage events.
High-side gate driver for N-channel power MOSFETs up to 160 V rail, with 500 mA source/sink drive, undervoltage lockout, and VCC clamping.
Benefits
- Lower BOM and simpler ECU design:U-chip multifunction devices replace several discrete ICs, reducing component count, supplier qualification effort, and board-level interconnections.
- Emissions and fuel-economy support:precise control of injection and ignition timing supports OEM compliance with current and upcoming tailpipe emissions regulations while optimizing fuel consumption.
- Integrated protection and diagnostics:short-circuit, overtemperature, and overvoltage protection with on-chip diagnostics supports safe-state behavior and field serviceability.
- One portfolio across engine architectures:single-cylinder small-engine ECUs through four-cylinder passenger-car ECUs, in both gasoline and diesel, covered by a single product line.