BTS441RGATMA1

Power Distribution Switches, Load Drivers Overview

The BTS441RGATMA1 is a single-channel high-side power switch from Infineon's Classic PROFET series, designed for automotive and industrial applications. It integrates an N-channel vertical power FET with a charge pump in Smart SIPMOS technology. Key electrical parameters include a maximum load current of 21 A, a short-circuit current limit of 65 A, and a typical on-state resistance of 20 mΩ. The device operates within a supply voltage range of 4.75 V to 41 V and withstands up to 43 V. It features a TO-263-5 surface-mount package, supports temperatures from -40°C to +150°C, and holds AEC-Q100 qualification.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates embedded protective functions including short circuit protection, current limitation, and overtemperature shutdown.
• Features fast demagnetization capability for efficient handling of inductive loads.
• Provides status feedback via a ground-referenced output pin compatible with microcontrollers.
• Optimized for stable behavior during undervoltage conditions and low standby current consumption.

Power Distribution Switches, Load Drivers Applications

• Microcontroller-compatible power switching for 5V, 12V, and 24V DC systems
• Driving resistive, inductive, and capacitive loads such as lamps and solenoids
• Replacing electromechanical relays and discrete fuse circuits in automotive modules

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific ordering suffix to ensure the correct tape-and-reel packaging quantity and variant designation. Confirm that the component meets AEC-Q100 automotive qualification requirements if intended for vehicle integration. Cross-reference the datasheet revision date to ensure compatibility with existing design specifications and protection thresholds.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for applications requiring high current handling up to 21 A with integrated diagnostic feedback. The TO-263-5 package offers robust thermal dissipation for high-power density designs. Ensure the control interface matches the CMOS-compatible input logic levels and verify that the load inrush currents remain within the specified safe operating area limits.

Power Distribution Switches, Load Drivers Part Context

This part belongs to Infineon's Classic PROFET family of smart power switches. These devices combine power MOSFET technology with intelligent control circuitry to provide reliable switching solutions. The BTS441 variant specifically targets high-current single-channel applications, offering a compact alternative to traditional relay-based architectures in modern electronic control units.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitute part numbers include BTS441RGXT and BTS441R. Verify pinout compatibility and thermal characteristics when substituting.