Overview
The L9362013TR, produced by STMicroelectronics, is a quad low-side driver designed for automotive applications. This integrated circuit features four identical low-side power switches, each equipped with advanced protection and diagnostic capabilities. It is optimized for use in power distribution systems, offering robust performance and reliability.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | 5 | 7 | V |
| Output Voltage (VOut) | -0.3 | 45 | V | |
| Continuous Output Current (Iout) | 3.0 | A | ||
| Peak Output Current (ISCBpeak) | 10 | A | ||
| Operating Junction Temperature (Tj) | -40 | 150 | °C | |
| Switching Frequency | 325 kHz | 2 kHz | ||
| Short Circuit Switch Off Delay Time (t_SCB) | 3 | 30 | μs | |
| Overtemperature Detection Threshold (TOFF) | 155 | 190 | °C |
Key Features
- Quad low-side power switches with current feedback output for each power stage.
- Internal failure diagnostic and short circuit protection.
- Overtemperature protection and disable.
- Output voltage slope control for low electromagnetic emissions.
- Internal Zener clamp for inductive loads.
- Parallel input capability.
- SPI interface for diagnostic information exchange.
- Reset input and internal oscillator.
- Current feedback outputs for servo loop applications.
Applications
The L9362013TR is primarily designed for automotive applications, including power distribution systems, motor control, and other high-reliability power switching needs. Its robust protection features and diagnostic capabilities make it suitable for use in harsh automotive environments.
Q & A
- What is the supply voltage range for the L9362013TR?
The supply voltage range is from 4.5V to 5.5V.
- What is the maximum continuous output current per channel?
The maximum continuous output current per channel is 3.0 A.
- What types of failures can the L9362013TR detect?
The L9362013TR can detect short circuit to VBat or overtemperature, short circuit to GND, and open-load failures.
- How does the L9362013TR protect against overtemperature?
The device has an overtemperature detection and shutdown mechanism that switches off the power transistor if the temperature exceeds the TOFF threshold.
- What is the purpose of the current feedback output?
The current feedback output sinks a current proportional to the load current, enabling servo loop applications.
- How does the diagnostic interface work?
The diagnostic interface uses an SPI link to communicate failure information between the microprocessor and the failure register.
- Can the output stages be connected in parallel?
- What is the switching frequency range of the L9362013TR?
The switching frequency range is up to 2 kHz.
- How does the device protect against short circuits?
The device has a short circuit detection and switch-off mechanism that activates if the output current exceeds the short current limit for a longer time than the specified filter time.
- What is the role of the Zener clamp in the L9362013TR?
The Zener clamp limits the voltage at the power transistors when inductive loads are switched off.
