STMPS2141TTR

Overview

The STMPS2141TTR is a single-channel high-side power distribution switch manufactured by STMicroelectronics, designed for applications involving heavy capacitive loads and short-circuits. It incorporates a 90 mΩ N-channel MOSFET controlled by a logic enable input. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports continuous output currents up to 500 mA with an 800 mA current limit threshold. It features thermal protection that automatically shuts off the switch upon excessive junction temperature rise, with automatic recovery once cooled. The component is housed in an 8-SOIC surface-mount package.

Feature Summary

• Integrates a 90 mΩ high-side N-channel MOSFET for efficient power distribution
• Provides thermal shutdown protection with automatic recovery when the device cools sufficiently
• Limits output current to a safe level during overloads or short-circuit conditions
• Includes internal circuitry ensuring the switch remains off until valid input voltage is present

Applications

• Power distribution systems requiring protection against heavy capacitive loads
• Circuits susceptible to frequent short-circuit events
• Embedded systems utilizing CMOS or TTL compatible logic inputs

Procurement Notes

Verify the specific suffix 'TTR' against official STMicroelectronics documentation to confirm reel packaging specifications and tape dimensions. Ensure compatibility with standard SOIC-8 footprint requirements during PCB layout. Cross-reference the datasheet revision history to validate operating temperature ranges and electrical characteristics prior to final procurement decisions.

Selection Notes

Select this component for designs requiring robust protection against short circuits and thermal overload in low-voltage environments. The 90 mΩ on-resistance minimizes power dissipation compared to higher resistance alternatives. Consider the 500 mA continuous current rating relative to load requirements. The integrated fault blanking and UVLO features simplify control logic design for sensitive microcontroller interfaces.

Part Context

The STMPS2141 belongs to the STMPS21x1 family of enhanced single-channel power switches from STMicroelectronics. This series is engineered for reliable operation in harsh electrical environments, offering integrated diagnostics and protection mechanisms. The TTR variant denotes the specific tape-and-reel packaging configuration suitable for automated surface-mount assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.