Overview
The L9300TD80T-TR, produced by STMicroelectronics, is an automotive flexible U-chip designed specifically for braking and transmission applications. This integrated circuit is implemented in BCD8s_auto technology and is AEC-Q100 qualified, ensuring high reliability and performance in harsh automotive environments. The device offers a comprehensive set of features, including multiple voltage regulators, current control drivers, and various interface options, making it a versatile solution for complex automotive systems.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Operating Temperature (Ta) | -40 | 135 | °C | |
| Junction Temperature (Tj) | -40 | 175 | °C | |
| Storage Temperature (Tstr) | -50 | 175 | °C | |
| Battery Voltage Range (VBATP) | 5.5 | 19 | V | |
| Current Accuracy (0 to 0.5 A range) | ± 8 mA | |||
| Current Accuracy (0.5 A to 1.5 A range) | ± 1% | |||
| Max Driver RDSON @ 175 °C | 500 mΩ | |||
| Package Type | TQFP80 (Exp. pad down) |
Key Features
- AEC-Q100 qualified for automotive reliability
- Four voltage regulators:
- One configurable 5 V or 6.5 V buck regulator
- One configurable 5 V linear/tracking regulator
- Two linear regulators with selectable output voltage
- Four tracking regulators/wheel speed sensor interfaces
- Six low-side/high-side current control drivers with integrated current sense path
- Two high-side NFET pre-drivers, one capable of PWM mode up to 18 kHz
- Integrated charge-pump and CAN transceiver
- Two watchdog types: hardware and software Query and Answer based watchdog
- Wake-up control and temperature sensor and monitoring
- Dual band gap reference and oscillator
- 32-bit SPI interface
- Low-side open drain general purpose output configurable as an interrupt generator
Applications
The L9300TD80T-TR is specifically designed for use in automotive braking and transmission systems. It is suitable for various applications within the automotive sector, including:
- Braking systems: The device's current control drivers and tracking regulators make it ideal for managing the complex electrical requirements of modern braking systems.
- Transmission systems: The configurable voltage regulators and high-side pre-drivers support the sophisticated control needs of transmission systems.
- Automotive control units: The device's CAN interface and watchdog functionalities ensure reliable communication and system monitoring in automotive control units.
Q & A
- What is the operating temperature range of the L9300TD80T-TR?
The operating temperature range is from -40°C to 135°C.
- What types of voltage regulators are included in the L9300TD80T-TR?
The device includes one configurable 5 V or 6.5 V buck regulator, one configurable 5 V linear/tracking regulator, and two linear regulators with selectable output voltage.
- What is the maximum RDSON of the current control drivers at 175°C?
The maximum RDSON is 500 mΩ at 175°C).
- Does the L9300TD80T-TR support CAN communication?
Yes, the device includes a CAN transceiver for communication).
- What is the package type of the L9300TD80T-TR?
The package type is TQFP80 (Exp. pad down)).
- What are the key features of the current control drivers?
The current control drivers have an integrated current sense path, variable and fixed frequency current control algorithm, programmable dither function, and selectable driver slew-rate control).
- How many high-side NFET pre-drivers does the device have?
The device has two high-side NFET pre-drivers, one of which can operate in PWM mode up to 18 kHz).
- What is the purpose of the watchdog functionalities in the L9300TD80T-TR?
The watchdog functionalities monitor CPU activity and include both hardware and software Query and Answer based watchdogs).
- Does the device support wake-up control and temperature monitoring?
Yes, the device includes wake-up control and temperature sensor and monitoring capabilities).
- What interface does the L9300TD80T-TR use for communication?
The device uses a 32-bit SPI interface for communication).
