自動車の燃費改善、CO2排出削減、および信頼性向上を達成するという課題に取り組むには、考えられるすべてのエネルギー損失源に目を向け、関連サブシステムの構築方法を再考する必要があります。そうした事情から、油圧による摩擦から生じる損失を低減できる電動燃料ポンプが、機械的なシステムの代わりに導入されています。
電動燃料ポンプはほとんどの場合、ブラシレスDC（BLDC）モータで実装されます。STは、このモータに給電する幅広い3相ゲート･ドライバとパワーMOSFETを提供しています。車載用32bitマイクロコントローラSPC5に専用の電圧レギュレータとパワー･マネージメントICを組み合わせると、高効率ソリューションの設計を簡素化できます。
-
-
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.
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
製品型番 Description ステータス Core Products Price (US$)* Order / DownloadL99ASC03G Key features
- AEC-Q100 qualified
- 5 V low-drop voltage regulator (200 mA continuous mode)
- Very low current consumption in standby mode (typ. 15 μA)
- ST SPI interface for control and diagnostics
- Window watchdog and fail-safe functionality
- Two separate power supply pins
- Three half-bridge drivers to control external MOSFETs (configurable by SPI)
- Full drive of external MOSFETs down to 6 V input voltage
- Input pin for each gate driver (with cross-current protection)
- Two-stage charge pump supporting 100% duty cycle
- PWM operation up to 80 kHz (not restricted)
- Current-sense amplifier (configurable by SPI)
- Disable input to turn off gate driver outputs
- Analog multiplexer output to monitor external power supply voltages and internal junction temperature
- Advanced BEMF detection IP
- Overcurrent protection (programmable)
- Drain-source monitoring and open-load detection
- TQFP48 7 x 7 x 1 mm with Exposed Pad (4.5 x 4.5 mm) package
Brushless/Sensorless 3-phase motor pre-driver for automotive applications Active5.19 Buy now EVAL-L99ASC03 Key features
- Two separated and signal shielded stages: driver & power
- ISO pulse protection (not soldered)
- Reverse polarity protection available on each battery voltage input: Vs, VSREG, power stage
- Current reference comparator
- PCB temperature sensor
- Hall sensors connector and conditioning circuit
- INH_wake-up button
- Microcontroller configured to be supplied by L99ASC03 5V LDO
- Flash mode configurable
- Compatible with external power boards
Evaluation board for L99ASC03G three-phase pre-driver ActiveL99ASC03G 317.54 Buy now L99ASC03G説明 :
Brushless/Sensorless 3-phase motor pre-driver for automotive applicationsKey features
- AEC-Q100 qualified
- 5 V low-drop voltage regulator (200 mA continuous mode)
- Very low current consumption in standby mode (typ. 15 μA)
- ST SPI interface for control and diagnostics
- Window watchdog and fail-safe functionality
- Two separate power supply pins
- Three half-bridge drivers to control external MOSFETs (configurable by SPI)
- Full drive of external MOSFETs down to 6 V input voltage
- Input pin for each gate driver (with cross-current protection)
- Two-stage charge pump supporting 100% duty cycle
- PWM operation up to 80 kHz (not restricted)
- Current-sense amplifier (configurable by SPI)
- Disable input to turn off gate driver outputs
- Analog multiplexer output to monitor external power supply voltages and internal junction temperature
- Advanced BEMF detection IP
- Overcurrent protection (programmable)
- Drain-source monitoring and open-load detection
- TQFP48 7 x 7 x 1 mm with Exposed Pad (4.5 x 4.5 mm) package
EVAL-L99ASC03説明 :
Evaluation board for L99ASC03G three-phase pre-driverKey features
- Two separated and signal shielded stages: driver & power
- ISO pulse protection (not soldered)
- Reverse polarity protection available on each battery voltage input: Vs, VSREG, power stage
- Current reference comparator
- PCB temperature sensor
- Hall sensors connector and conditioning circuit
- INH_wake-up button
- Microcontroller configured to be supplied by L99ASC03 5V LDO
- Flash mode configurable
- Compatible with external power boards
-
