Overview
The L6375S is a monolithic intelligent power switch from STMicroelectronics, designed to drive inductive, capacitive, or resistive loads with controlled output voltage slew rate and comprehensive protection features. This high-side driver is fabricated in multipower BCD technology, making it robust and suitable for industrial automation applications. It offers a wide supply voltage range of 8 to 35 V and can handle output currents up to 0.5 A. The device includes internal current limiting, thermal shutdown, and undervoltage lockout, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 8 to 35 | V |
| Output Current | 0.5 | A |
| Operating Temperature Range | -25 to +125 | °C |
| Package Type | SO-8 | |
| Internal Current Limit | 1.1 A (typical) | A |
| Undervoltage Threshold 1 | 7 to 8 | V |
| Undervoltage Hysteresis | 300 to 700 mV | mV |
| Thermal Shutdown Temperature | 150 °C (typical) | °C |
| Diagnostic Outputs | Two (DIAG1, DIAG2) |
Key Features
- 0.5 A output current capability
- 8 to 35 V supply voltage range
- Internal current limit and non-dissipative short-circuit protection
- Thermal shutdown and undervoltage lockout with hysteresis
- Internal negative voltage clamping for fast demagnetization of inductive loads
- Differential inputs with large common mode range and threshold hysteresis
- Open load detection and open ground protection
- Output status LED driver and two diagnostic outputs
- Immunity against burst transient (IEC 61000-4-4) and ESD protection (human body model ±2 kV)
Applications
The L6375S is particularly suited for industrial automation applications, including but not limited to:
- Driving inductive, capacitive, or resistive loads in industrial control systems
- Power distribution and management in automated machinery
- Protection and control of motors, solenoids, and other inductive loads
- Use in harsh environments requiring robust electrical protections
Q & A
- What is the supply voltage range of the L6375S?
The supply voltage range of the L6375S is from 8 to 35 V.
- What is the maximum output current of the L6375S?
The maximum output current of the L6375S is 0.5 A.
- What types of loads can the L6375S drive?
The L6375S can drive inductive, capacitive, or resistive loads.
- Does the L6375S have thermal shutdown protection?
- How does the L6375S protect against short-circuits?
The L6375S features non-dissipative short-circuit protection, which limits the output current to a safe level during short-circuit conditions and cycles between on and off states to prevent overheating.
- What diagnostic features are available on the L6375S?
The L6375S has two diagnostic outputs (DIAG1 and DIAG2) that report various operating conditions such as short-circuits, undervoltage, overtemperature, and open load conditions.
- Is the L6375S protected against ESD?
- What is the operating temperature range of the L6375S?
The operating temperature range of the L6375S is from -25 to +125 °C.
- What package types are available for the L6375S?
The L6375S is available in an SO-8 package, with options for tube or tape and reel packing.
- How does the L6375S handle demagnetization of inductive loads?
The L6375S includes an internal Zener diode that limits the voltage across the power MOSFET, providing safe and fast demagnetization of inductive loads without external clamping devices.
