STMicroelectronics

L6370D  

Power Distribution Switches, Load Drivers

L6370D Description

The L6370D from STMicroelectronics is a high-performance N-channel power switch designed for high-side load driving applications. This 1:1 ratio power switch operates within a 9.5V to 35V load voltage range, making it suitable for industrial, automotive, and power management systems. The device integrates advanced protection features, including fixed current limiting, open-load detection, over-temperature shutdown, and undervoltage lockout (UVLO), ensuring robust and reliable operation in demanding environments. Packaged in a PWRSO20 tube, the L6370D is RoHS3 compliant and meets REACH environmental standards, aligning with modern regulatory requirements.

L6370D Features

• High-Side Configuration: Enables efficient load control with a single output (2.5A max current).
• Differential Input: Supports precise switching with On/Off interface compatibility.
• Comprehensive Protection: Combines current limiting, open-load detection, thermal shutdown, and UVLO for fault resilience.
• Wide Operating Range: Functions reliably across 9.5V–35V load voltages, ideal for variable power systems.
• Status Flag: Provides real-time operational feedback, enhancing system diagnostics.
• Surface-Mount Design (PWRSO20): Optimized for compact PCB layouts in space-constrained applications.
• Industrial Robustness: MSL 3 (168 hours) moisture sensitivity ensures durability in humid conditions.

L6370D Applications

The L6370D excels in scenarios requiring high-current switching with robust protection:

• Industrial Automation: Solenoid/valve control, motor drivers, and PLC systems benefit from its fault-tolerant design.
• Automotive Electronics: Ideal for LED lighting, power distribution modules, and 12V/24V battery management.
• Power Supplies: Protects against overloads in DC-DC converters and hot-swap circuits.
• Home Appliances: Used in smart relays and high-power actuators due to its thermal resilience.

Conclusion of L6370D

The L6370D stands out as a high-reliability power switch for high-side applications, combining wide voltage range operation, integrated protections, and diagnostic capabilities. Its industrial-grade robustness and compact form factor make it a superior choice over basic MOSFET drivers, particularly in automotive and industrial systems where failure tolerance is critical. For engineers seeking a versatile, protected load driver, the L6370D delivers performance, safety, and compliance in a single package.

L6370D Documents

Download datasheets and manufacturer documentation for L6370D

PCN :

Product Change Notification (PDF)