Tackling the challenge of achieving improved fuel efficiency, reducing CO2 emissions and increasing the reliability of vehicles means looking at every possible source of energy loss and rethinking the way the associated sub-system is built. This is why electric fluid pumps are replacing mechanical systems as they can help reduce losses from hydraulic friction.
Electric fuel pumps are most often implemented with brushless DC (BLDC) motors and ST has a complete range of three-phase gate drivers and Power MOSFETs to power them. SPC5 32-bit automotive-grade microcontrollers plus dedicated voltage regulators and power management ICs simplify the design of high-efficiency solutions.
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Based on the EVAL-L99ASC03 evaluation board designed for sensorless 3-phase BLDC motor control, the system features enhanced power management power supply functions including various standby modes. The motherboard, based on an STM8 microcontroller, provides the logic section for monitoring and driving the L99ASC03G 3-phase motor pre-driver assembled in the daughterboard.Â
ST also provides dedicated user-friendly software with a Graphic User Interface (GUI) that enables the user to set L99ASC03G parameters while displaying device information in real time.
Developers can easily evaluate their brushless DC motor control solution for a variety of circulation and booster pump applications for coolant, water, fuel or oil lines.
Solution Components
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Design Tools
Development Tools
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Picture Part number Manufacturer Description 
ST-DIODE-FINDER ST Diode product finder application for Android and iOS Part NumberDiode product finder application for Android and iOS
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eDesignSuite
Automotive Analog and Power
| Part number | Description |
|---|---|
| L9001 | SPS - Simple Power Supply - Multiple Voltage Regulator |
| L9616 | High Speed Can Bus Transceiver |
| L9907 | 3 phase gate driver for 6step or FOC controlled Brushless Motors compatible with 48V NET |
| VN5R003H-E | 3 mOhm reverse battery protection switch |
| VND5E004A-E | Double 4 mOhm high-side driver with analog current sense |
Automotive Microcontrollers
| Part number | Description |
|---|---|
| SPC560P60L5 | 32-bit Power Architecture MCU for Automotive Chassis and Safety Applications |
| SPC564L70L5 | 32-bit Power Architecture MCU for Automotive Chassis and Safety Applications |
Protection Devices
| Part number | Description |
|---|---|
| ESDCAN01-2BLY | Automotive dual-line TVS in SOT23-3L for CAN bus (12 V system) |
| ESDCAN03-2BWY | Automotive dual-line TVS in SOT323-3L for CAN bus (12 V system) |
| SM15TY | Automotive 1500 W TVS in SMC |
| SM30TY | Automotive 3000 W TVS in SMC |
| SM4TY | Automotive 400 W TVS in SMA |
| SMA6TY | Automotive 600 W TVS in SMA |
