Infineon Low Side Power Switch IC 4-Pin SOT-223 480mΩ Rds(on) 3.8W 1.4A BSP76E6433HUMA1

Infineon BSP76E6433HUMA1 is a low side power switch integrated circuit designed for efficient switching and load protection in electronic systems operating at low voltage levels. It features a low on-resistance of 480mΩ, enabling reduced conduction losses and improved energy efficiency in control modules.

Housed in a compact 4-pin SOT-223 surface-mount package, this power switch IC simplifies PCB assembly and saves space, making it suitable for applications requiring reliable and compact power management components. The device supports a maximum supply voltage of 10V and an operating current of 1.4A with a thermal dissipation rating of 3.8W, accommodating moderate continuous load requirements.

Designed to operate over a broad temperature range from -40°C to 150°C, the BSP76E6433HUMA1 can withstand harsh environmental conditions typically encountered in automotive, industrial, and commercial applications. It accepts a single control input and provides five independent switched outputs, allowing centralized load distribution, sequencing, and board-level protection for resistive and small inductive loads.

Optimal thermal performance is achieved using PCB layout techniques such as thermal land and copper pours beneath the SOT-223 package to maintain device temperature within limits. This IC implements a low-side switching topology, controlling the connection of the load to ground and is primarily used between load devices and their return paths.

Features low 480mΩ on-resistance for efficient conduction losses. Maximum supply voltage of 10V for compatibility with common low-voltage systems. Surface-mount SOT-223 package with 4 pins enables compact PCB integration.

Wide operating temperature range from -40°C to 150°C supports harsh environments. Supports a single control input and five independent switched outputs for load distribution. Designed for switching resistive and small inductive loads in electronic control modules.

Offers board-level load protection and sequencing capabilities. Thermal rating of 3.8W with recommended PCB heat sinking for reliable operation. Suitable for automotive and industrial equipment requiring low-side switching.

This Power Switch IC is ideal for applications in electronic control modules, centralized load distribution, sequenced output control, and rugged electronics requiring compact, efficient, and reliable low-side switching solutions. Its specifications and package make it suitable for automotive and industrial uses requiring robust thermal and environmental tolerance.

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