TPS2021DG4

Power Distribution Switches, Load Drivers Overview

The TPS2021DG4 is a single-channel power switch manufactured by Texas Instruments. It features an N-channel MOSFET with a maximum continuous output current of 600mA and operates within a load voltage range of 2.7V to 5.5V. The device utilizes an inverting interface for on/off control and includes built-in fault protection mechanisms such as fixed current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). It provides a status flag output and is housed in an 8-PDIP package.

Power Distribution Switches, Load Drivers Feature Summary

• Integrated N-channel power switch with 33mΩ typical on-resistance
• Comprehensive fault protection including current limit, thermal shutdown, and UVLO
• Status flag output for monitoring operational state
• Inverting logic interface for simple control

Power Distribution Switches, Load Drivers Applications

• Peripheral power switching for USB ports
• Battery-powered system load management
• Hot-swap applications requiring controlled power sequencing
• Overcurrent protection for sensitive circuit loads

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'DG4' indicates lead-free compliance and RoHS adherence compared to standard versions. Confirm the package type matches the required 8-PDIP footprint for PCB layout. Ensure the operating temperature range aligns with the target application environment specifications before finalizing procurement.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a low-side or high-side switch is needed for loads up to 600mA within a 5.5V domain. The inverting control interface simplifies logic interfacing. Consider the thermal performance of the PDIP package if high ambient temperatures are expected, as thermal shutdown is a key feature.

Power Distribution Switches, Load Drivers Part Context

The TPS2021DG4 belongs to the TPS202x series of power switches from Texas Instruments. This family offers integrated protection features commonly found in eFuse-like applications but without the complexity of dedicated controller ICs. It serves as a robust solution for distributing power in portable electronics and industrial interfaces where reliability and simplicity are prioritized.

Power Distribution Switches, Load Drivers Replacement Considerations

The TPS2021P is a direct pin-compatible alternative within the same series. Verify that any substitute maintains the 600mA current rating and 5.5V maximum voltage specification. Check for equivalent fault response times and on-resistance values to ensure circuit performance remains unchanged.