BTS500851TMAATMA1

Power Distribution Switches, Load Drivers Overview

The BTS500851TMAATMA1 is a high-side smart power switch from Infineon's PROFET family, designed for automotive and industrial applications. It integrates a vertical N-channel power MOSFET with embedded protection and diagnostic functions. Key electrical parameters include a maximum output current of 44 A, a short-circuit current limit of 90 A, and a typical on-resistance of 9 mΩ. The device operates within a supply voltage range of 5 V to 58 V and supports a junction temperature range from -40°C to +150°C. It features fast turn-off capabilities and is available in a TO-220-7 package.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates comprehensive protection mechanisms including overload, short-circuit, over-temperature, and over-voltage protection.
• Provides diagnostic feedback through load current sensing for open-load detection and status indication.
• Features low ohmic reverse current operation and integrated ESD protection for robust system reliability.

Power Distribution Switches, Load Drivers Applications

• Automotive body and convenience systems
• Power distribution units
• Relay replacement circuits
• Heating applications

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'AATMA1' against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the TO-220-7 form factor. Confirm that the 44 A continuous current rating meets thermal management requirements in the target application environment.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when high current handling up to 44 A is required in a single channel. Consider the 9 mΩ on-resistance for efficiency calculations. The wide operating voltage range suits 12V and 24V automotive networks. Verify that the TO-220-7 package fits the mechanical constraints of the design.

Power Distribution Switches, Load Drivers Part Context

This part belongs to Infineon's Classic PROFET 24V family, optimized for high-current switching tasks. It serves as an intelligent alternative to discrete MOSFETs and traditional relays, offering integrated control logic and protection in a compact semiconductor solution suitable for harsh environments.

Power Distribution Switches, Load Drivers Replacement Considerations

Check for direct substitutes within the same PROFET series or equivalent high-side switches from other manufacturers. Ensure pinout compatibility and similar electrical characteristics such as current ratings and protection thresholds before substitution.

Power Distribution Switches, Load Drivers FAQ

What is the maximum short-circuit current capability?

The device can handle a short-circuit current of up to 90 A.

Does the device support open-load detection?

Yes, it provides diagnostic feedback via load current sensing to detect open-load conditions.