Overview
The L9301-TR, produced by STMicroelectronics, is a highly versatile and robust automotive-grade octal channel driver. This device is controlled via a Serial Peripheral Interface (SPI) and features a combination of high/low and low side drivers. It is designed to meet the stringent requirements of automotive applications, including power management and control systems. The L9301-TR is AEC-Q100 qualified, ensuring its reliability and performance in harsh automotive environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 12 | - |
| Output Current | 3 | A |
| Operating Battery Supply Voltage | 5 to 18 | V |
| Operating Vdd Supply Voltage | 4.75 to 5.25 | V |
| Logic Inputs Compatibility | TTL/CMOS | - |
| Output Voltage Clamping (Low-Side) | 37 | V (typ.) |
| Operating Temperature | -40 to 125 | °C |
| Package Type | PowerSSO36 | - |
| Ron (Max) for High/Low Side Drivers | 0.6 | Ω @ Tj = 175 °C |
| Ron (Max) for Low Side Drivers (OUT5-8) | 0.3 | Ω @ Tj = 175 °C |
Key Features
- Eight integrated PowerMOS configurable as 8 low side ON-OFF drivers or high/low side PWM drivers.
- Configurable as 4 high/low side drivers and 4 low side drivers, or as 8 low side drivers with reduced on-resistance.
- SPI interface for controlling outputs and communicating diagnosis data.
- Additional PWM inputs for all 8 outputs.
- Over temperature protection, open load, short to GND, and short to VB detection.
- Overcurrent diagnostics in latched or unlatched mode for each channel.
- Controlled slew rate for improved EMC behavior.
- Output voltage clamping up to 37 V in low-side configuration.
Applications
The L9301-TR is primarily designed for automotive applications, including but not limited to:
- Power management and control systems in vehicles.
- Automotive body control modules (BCM).
- Vehicle control units (VCU) and battery management systems (BMS).
- Power distribution control units (PDCU).
Q & A
- What is the primary function of the L9301-TR?
The L9301-TR is a SPI-controlled octal channel driver with configurable high/low and low side drivers, designed for automotive applications.
- What is the operating voltage range for the L9301-TR?
The operating battery supply voltage is 5 V to 18 V, and the operating Vdd supply voltage is 4.75 V to 5.25 V.
- What is the maximum output current of the L9301-TR?
The maximum output current is 3 A.
- What types of protection does the L9301-TR offer?
The device offers over temperature protection, open load detection, short to GND detection, short to VB detection, and overcurrent diagnostics.
- How is the L9301-TR controlled?
The device is controlled via a Serial Peripheral Interface (SPI) and additional PWM inputs for all 8 outputs.
- What is the significance of the AEC-Q100 qualification?
The AEC-Q100 qualification ensures that the device meets the stringent reliability and performance standards required for automotive applications.
- Can the L9301-TR be configured in different modes?
Yes, the device can be configured as 8 low side ON-OFF drivers or as high/low side PWM drivers, and the on-resistance can be reduced by connecting certain drivers in parallel.
- What is the operating temperature range of the L9301-TR?
The operating temperature range is -40°C to 125°C.
- What package type is the L9301-TR available in?
The device is available in the PowerSSO36 package.
- Does the L9301-TR support diagnosis data communication?
Yes, the device supports diagnosis data communication through the SPI interface.
