Overview
The L9300TU80T, produced by STMicroelectronics, is an integrated circuit designed specifically for automotive environments, particularly addressing transmission and braking applications. This device is implemented in BCD8s_auto technology and is AEC-Q100 qualified, ensuring high reliability and performance in harsh automotive conditions.
The L9300TU80T offers a high degree of configurability, including both the supplies block and the valve drivers stage. It is packaged in a TQFP 80 EP (14x14) and is available in various configurations to suit different application needs.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | TQFP 80 EP (14x14) | TQFP 80 EP (14x14) |
| Operating Temperature | Range | -40°C to 135°C |
| Junction Temperature | Range | -40°C to 175°C |
| Battery Voltage Range | Normal Operative Voltage Range | 5.5 V to 19 V |
| Voltage Regulators | Configurable 5 V or 6.5 V buck regulator | 5 V or 6.5 V |
| Voltage Regulators | Configurable 5 V linear/tracking regulator | 5 V |
| Voltage Regulators | Two linear regulators with selectable output voltage | Selectable |
| Current Control Drivers | Number of low-side/high-side current control drivers | Six |
| Current Accuracy | Normal range (0 to 0.5 A) | ± 8 mA |
| Current Accuracy | Normal range (0.5 A to 1.5 A) | ± 1% |
| Max Driver RDS ON | At 175 °C | 500 mΩ |
| Current Set-Point Resolution | Bits | 11-bit |
| Interface | 32-bit SPI interface | 32-bit SPI |
| Watchdog | Types | Hardware and Software Query and Answer based |
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, and 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
- High 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 of 500 mΩ at 175 °C
- 11-bit current set-point resolution and variable/fixed frequency current control algorithm
- Programmable dither function and selectable driver slew-rate control
- Two high-side NFET pre-drivers and integrated charge-pump
- CAN transceiver and dual watchdogs (hardware and software Query and Answer based)
- Wake-up control, temperature sensor, and monitoring
- Dual band gap reference and oscillator
- 32-bit SPI interface
Applications
The L9300TU80T is specifically designed for automotive applications, particularly in transmission and braking systems. It is suitable for use in various automotive control units such as:
- Transmission control units
- Braking systems (including ABS and ESP)
- Automotive power management systems
- Automotive sensor interfaces and wheel speed sensors
Q & A
- What is the L9300TU80T used for?
The L9300TU80T is used in automotive applications, particularly in transmission and braking systems, to manage power and control various automotive functions.
- What are the key voltage regulators in the L9300TU80T?
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 L9300TU80T?
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.
- What is the maximum RDS ON of the drivers?
The maximum RDS ON of the drivers is 500 mΩ at 175 °C.
- Does the L9300TU80T have a CAN interface?
Yes, the device includes a CAN transceiver.
- What types of watchdogs are available in the L9300TU80T?
The device includes both hardware and software Query and Answer based watchdogs.
- What is the operating temperature range of the L9300TU80T?
The operating temperature range is -40°C to 135°C.
- What is the package type of the L9300TU80T?
The package type is TQFP 80 EP (14x14).
- Is the L9300TU80T AEC-Q100 qualified?
Yes, the device is AEC-Q100 qualified for automotive reliability.
- What interface does the L9300TU80T use for communication?
The device uses a 32-bit SPI interface for communication.
- Does the L9300TU80T have temperature sensing capabilities?
Yes, the device includes a temperature sensor and monitoring functionality.
