Overview
The L9906TR is an integrated circuit designed for driving 3-phase Brushless DC (BLDC) motors, manufactured by STMicroelectronics. This device is part of a family of gate driver units tailored for automotive and industrial applications. The L9906TR provides a comprehensive solution for controlling BLDC motors, offering advanced features such as independent half-bridge drivers, high accuracy current monitoring, and robust diagnostic capabilities.
Key Specifications
| Parameter | Description |
|---|---|
| Package | TQFP 48 7x7x1.0 |
| Grade | Automotive Safety |
| RoHS Compliance Grade | Ecopack2 |
| Operating Temperature (°C) | -40 to 150 |
| Motor Supply Voltage Range | 4.5 V to 75 V |
| Internal Supply Voltage | 3.3 V generated from 5 V on VDD pin |
| Digital I/O Compatibility | 3.3 V/5 V logics |
| Current Monitoring | High accuracy current monitors with SPI-configurable input differential voltage ranges |
| Communication Interface | 32-bit SPI-slave interface up to 10 MHz |
Key Features
- AEC-Q100 qualified and full ISO26262 compliant, ASIL-D systems ready
- Independent half-bridge drivers for each phase, allowing different load driving configurations
- High accuracy current monitoring with SPI-configurable input differential voltage ranges and ADC/DAC architecture
- Real-time phase voltage monitoring with SPI programmable phase voltage feedback
- Robust protection and diagnostic features including shoot-through diagnosis, dead-time, short to battery, short to ground, and open load detection
- Over-temperature diagnostic and protection with SPI programmable warning flag
- SPI readable current measurement and phase duty cycle measurement
- 32-bit SPI-slave interface with 5-bit CRC and 1-bit frame counter for internal settings, self-test, and full diagnostics
Applications
The L9906TR is designed for use in various automotive and industrial applications, including:
- Brushless DC motor control in vehicles
- Electric power steering systems
- Electric water pumps and other automotive actuators
- Industrial motor control systems
Q & A
- What is the L9906TR used for?
The L9906TR is used for controlling 3-phase Brushless DC (BLDC) motors in automotive and industrial applications.
- What is the operating temperature range of the L9906TR?
The operating temperature range of the L9906TR is -40°C to 150°C.
- What is the motor supply voltage range for the L9906TR?
The motor supply voltage range for the L9906TR is from 4.5 V to 75 V.
- Does the L9906TR support SPI communication?
Yes, the L9906TR supports a 32-bit SPI-slave interface up to 10 MHz.
- What kind of protection and diagnostic features does the L9906TR offer?
The L9906TR offers protection and diagnostic features such as shoot-through diagnosis, dead-time, short to battery, short to ground, and open load detection, as well as over-temperature diagnostic and protection.
- Is the L9906TR AEC-Q100 qualified?
Yes, the L9906TR is AEC-Q100 qualified and full ISO26262 compliant, ASIL-D systems ready.
- How many current monitoring channels does the L9906TR have?
The L9906TR has three differential high accuracy current monitoring channels.
- Can the L9906TR be used in industrial applications?
Yes, the L9906TR can be used in various industrial motor control systems.
- What is the package type of the L9906TR?
The package type of the L9906TR is TQFP 48 7x7x1.0.
- Is the L9906TR RoHS compliant?
Yes, the L9906TR is RoHS compliant with an Ecopack2 grade.
