Infineon BSP742TXUMA1 Smart High-Side Power Switch: Features, Applications, and Technical Specifications

In the realm of power management and control, smart high-side switches represent a critical component for modern electronic systems, combining protection, diagnostics, and control in a single package. The Infineon BSP742TXUMA1 stands out as a premier example of this technology, designed to deliver robust performance and enhanced reliability for a wide array of applications.

Key Features

The BSP742TXUMA1 is engineered with a suite of advanced features that make it a versatile and dependable solution. It integrates a P-channel enhancement mode Power MOSFET with comprehensive protective functions and diagnostic capabilities. A standout feature is its very low standby current, which is crucial for battery-powered and energy-sensitive applications, helping to extend operational life. The device includes overload protection, short-circuit protection, and overtemperature shutdown, safeguarding both the switch itself and the connected load from damage. Furthermore, it offers reverse battery protection and is designed for inductive loads, making it exceptionally robust in automotive and industrial environments. The diagnostic feedback provided via a status pin allows for real-time monitoring of the output state and fault conditions, enabling smarter system management.

Primary Applications

The robust design and protective features of the BSP742TXUMA1 make it ideally suited for harsh electrical environments. Its primary application domain is the automotive industry, where it is used to drive resistive, capacitive, and inductive loads such as solenoids, valves, motors, and lamps. It is perfect for body control modules, power seat modules, and interior lighting systems. Beyond automotive, it finds significant use in industrial automation for controlling actuators and small motors, and in consumer electronics for smart power distribution where reliability and diagnostic feedback are paramount.

Technical Specifications

The technical specifications of the BSP742TXUMA1 highlight its capability and durability:

Output Configuration: Single-channel, high-side.

Load Current: A continuous output current of up to 1.7 A.

Output Voltage: Operates with a supply voltage range from 5.5 V to 34 V, covering standard automotive and industrial voltage levels, including load-dump conditions.

On-State Resistance (RDS(on)): Features a low RDS(on) of typically 180 mΩ, which minimizes power dissipation and improves efficiency.

Protection Features: Comprehensive suite including overtemperature, overcurrent/short-circuit, and electrostatic discharge (ESD) protection.

Package: Housed in a space-saving PG-TSDSO-14 package, suitable for automated PCB assembly.

ICGOOODFIND

The Infineon BSP742TXUMA1 is a highly integrated and intelligent power switch that excels in reliability and diagnostic capability. Its blend of a low RDS(on), extensive protection features, and diagnostic feedback makes it an superior choice for designers seeking to enhance system robustness and intelligence, particularly in demanding automotive and industrial applications.

Keywords:

Smart High-Side Switch, Automotive Applications, Overcurrent Protection, Diagnostic Feedback, Low RDS(on)