Overview
The L6375STR, produced by STMicroelectronics, is a monolithic intelligent power switch designed to drive inductive, capacitive, or resistive loads with controlled output voltage slew rate and comprehensive protection features. This device is fabricated using multipower BCD technology, making it robust and suitable for industrial automation applications. It offers a range of diagnostic and protection mechanisms, including short-circuit protection, undervoltage lockout, overtemperature shutdown, and open load detection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 0.5 A | A |
| Supply Voltage Range | 8 to 35 V | V |
| Operating Temperature Range | -25 to +125 °C | °C |
| Package Type | SO-8 | |
| Thermal Resistance Junction-Ambient | 100 °C/W (max) | °C/W |
| Undervoltage Threshold 1 | 7 to 8 V | V |
| Undervoltage Hysteresis | 300 to 700 mV | mV |
| Overtemperature Upper Threshold | 150 °C | °C |
| Overtemperature Hysteresis | 20 °C | °C |
Key Features
- 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 two diagnostic outputs
- Open ground protection and output status LED driver
- Immunity against burst transient (IEC 61000-4-4) and ESD protection (human body model ±2 kV)
- Programmable ON time interval during short-circuit operation
Applications
The L6375STR is designed for use in industrial automation, particularly where robust and reliable power switching is required. It is suitable for driving various types of loads, including inductive, capacitive, and resistive loads. Typical applications include motor control, solenoid drivers, and general-purpose power switching in industrial environments.
Q & A
- What is the maximum output current of the L6375STR?
The maximum output current is 0.5 A.
- What is the supply voltage range for the L6375STR?
The supply voltage range is from 8 to 35 V.
- What type of protection does the L6375STR offer against short circuits?
The device offers non-dissipative short-circuit protection with programmable ON time interval during short-circuit conditions.
- How does the L6375STR protect against overtemperature conditions?
The device has an on-chip overtemperature protection that shuts down the device if the temperature exceeds 150 °C, with a hysteresis of 20 °C.
- What is the purpose of the diagnostic outputs in the L6375STR?
The diagnostic outputs (DIAG1 and DIAG2) report the device's working conditions, including short-circuit, undervoltage, overtemperature, and open load conditions.
- How does the L6375STR handle inductive load demagnetization?
The device includes an internal Zener diode to limit the voltage across the power MOSFET, providing safe and fast demagnetization of inductive loads.
- What is the package type of the L6375STR?
The device is available in an SO-8 package.
- What is the thermal resistance junction-ambient of the L6375STR?
The thermal resistance junction-ambient is 100 °C/W (max).
- Does the L6375STR have ESD protection?
Yes, the device has ESD protection (human body model ±2 kV).
- What are some typical applications for the L6375STR?
Typical applications include motor control, solenoid drivers, and general-purpose power switching in industrial environments.
