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Door Lock

Tools and Software
HW Evaluation Tools
Key Products
Power door locks are increasingly becoming a standard fitting even in entry-level cars, while becoming more complex to include trunk and fuel or plug lid (for hybrid cars) locking systems in addition to the basic four-door control. As such, the door lock module is either located in a central body control module or implemented within a dedicated electronic control unit (ECU).

Efficient system-on-chip solutions

The several motors and solenoids used will have to be driven with high-efficiency solution and need to be protected while the overall module size and weights should be minimized. 

To meet these needs, we offer a portfolio of integrated system-on-chip solutions that also ensure flexibility and scalability in designing locking systems for a range of car models.


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Thermal-electrical Simulators for Components

Power Management Design Center

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AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
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Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices
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Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
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Solar Battery Charger

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
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Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
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Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node