STMicroelectronics L99ASC03G
The L99ASC03G is a multifunctional system IC designed for three-phase motor control applications. The device features a voltage regulator to supply an external microcontroller and an operation amplifier for motor current sensing. It is designed to control six external N-channel MOSFETs in bridge configuration to drive three-phase motors in automotive applications.| Part No. | L99ASC03G |
|---|---|
| Datasheet | L99ASC03G Download |
| Manufacturer |  STMicroelectronics |
| Description | Brushless / sensorless 3-phase motor pre-driver |
| Buy | Stock & Price |
APPLICATIONS
Mechatronic three-phase motor application such as engine cooling fans, fuel pumps, water pumps, oil pumpsFEATURES
● 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 crosscurrent 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)
DESCRIPTION
All gate driver outputs are controlled by separate inputs.
