Overview
The L9300TU80T-TR, produced by STMicroelectronics, is an integrated circuit designed specifically for automotive environments. It is implemented in BCD8s_auto technology and is particularly tailored for transmission and braking applications. This device offers a high degree of configurability, both in its supplies block and valve drivers stage, making it versatile for various automotive needs.
Key Specifications
| Parameter | Description | Min | Max | Unit | |
|---|---|---|---|---|---|
| Operating Temperature (Ta) | -40 | 135 | °C | ||
| Junction Temperature (Tj) | -40 | 175 | °C | ||
| Storage Temperature (Tstr) | -50 | 175 | °C | ||
| Battery Voltage Range (VBATP) | Normal Operative Voltage Range | 5.5 | 19 | V | |
| Battery Voltage Range (VBATP) | Full Operating Voltage Range (Ta ≤ 50 °C) | 19 | 27 | V | |
| Battery Voltage Range (VBATP) | High Voltage Range (Ta ≤ 50 °C) | 27 | 40 | V | |
| Max Driver RDS ON | 500 mΩ @ 175 °C | mΩ | |||
| Current Accuracy (Normal Range) | 0 to 0.5 A | ± 8 mA | mA | ||
| Current Accuracy (Normal Range) | 0.5 A to 1.5 A | ± 1% | % | ||
| Package Type | TQFP80 EP (14x14) |
Key Features
- AEC-Q100 Qualified: Ensures the device meets stringent automotive standards.
- 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.
- Tracking Regulators/Wheel Speed Sensor Interfaces: Four tracking regulators for wheel speed sensor interfaces.
- Current Control Drivers: Six low-side/high-side current control drivers with integrated current sense path.
- Current Accuracy:
- ± 8 mA in 0 to 0.5 A range.
- ± 1% in 0.5 A to 1.5 A range.
- Max Driver RDS ON: 500 mΩ @ 175 °C.
- Current Set-Point Resolution: 11-bit resolution.
- Current Control Algorithm: Variable and fixed frequency current control algorithm.
- Programmable Dither Function: For noise reduction.
- Selectable Driver Slew-Rate Control: For optimizing driver performance.
- High-Side NFET Pre-Drivers: Two high-side NFET pre-drivers, one of which can operate in PWM mode up to 18 kHz.
- CAN Transceiver: Integrated CAN interface for communication.
- Watchdog Functionality: Hardware and software watchdogs to monitor CPU activity.
- General Purpose Output: Low-side open drain general purpose output configurable as a standard output or interrupt generator.
- Temperature Sensor and Monitoring: Integrated temperature sensor for monitoring.
Applications
The L9300TU80T-TR is specifically designed for automotive applications, particularly in the areas of transmission and braking systems. Its features make it suitable for:
- Transmission Control Units: Managing the complex voltage and current requirements of transmission systems.
- Braking Systems: Supporting the electrical needs of advanced braking systems, including ABS and ESP.
- Automotive Power Management: Providing reliable and efficient power management for various automotive subsystems.
Q & A
- What is the operating temperature range of the L9300TU80T-TR?
The operating temperature range is from -40 °C to 135 °C.
- What types of voltage regulators does the L9300TU80T-TR include?
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 current accuracy of the current control drivers?
The current accuracy is ± 8 mA in the 0 to 0.5 A range and ± 1% in the 0.5 A to 1.5 A range.
- Does the L9300TU80T-TR have integrated CAN functionality?
Yes, it includes an integrated CAN transceiver.
- What is the maximum RDS ON of the drivers?
The maximum RDS ON is 500 mΩ at 175 °C.
- Can the device operate in different power modes?
Yes, the device can be configured to work in different modes, including reduced standby current consumption and with a subset of functions disabled in the ON state.
- How does the device handle power down?
The power down can occur in three different ways: through the WAKE pin, removal of the power hold bit, or not refreshing the keep-alive bit from the microcontroller.
- Is the L9300TU80T-TR AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified, ensuring it meets automotive standards.
- What is the package type of the L9300TU80T-TR?
The package type is TQFP80 EP (14x14).
- Does the device have temperature monitoring capabilities?
Yes, it includes an integrated temperature sensor and monitoring functionality.
