The Texas Instruments TPS2042BDGNR is a state-of-the-art power distribution switch designed for applications where USB power distribution and precision current limiting are required. This integrated circuit (IC) is part of the TPS204x family and is specifically engineered to enhance the functionality and safety of USB ports by providing up to 2.5A of continuous load current along with short-circuit and thermal protection.

Key Features

• Current Limiting: The TPS2042BDGNR offers programmable current limiting, which is essential for protecting USB ports and connected devices from excessive current draw that can lead to damage or system instability.
• Thermal Shutdown: An integrated thermal shutdown feature ensures the device operates within safe temperature ranges, protecting both the switch and downstream devices from overheating.
• Under-Voltage Lockout (UVLO): The UVLO feature ensures that the switch remains off if the input voltage drops below a certain threshold, thus safeguarding the connected devices from unstable operation due to insufficient power supply.
• Fast Overcurrent Response: With a quick response to overcurrent conditions, the TPS2042BDGNR helps to prevent potential damage to USB ports and peripheral devices.

Applications

The TPS2042BDGNR is suitable for a wide range of applications including, but not limited to:

• USB hubs
• Desktop and notebook computers
• Peripheral power management
• Hot-swap power supplies

Technical Specifications

The device comes in an 8-pin MSOP (DGN) package and operates over a free-air temperature range of -40°C to 85°C. It is designed to work with a supply voltage ranging from 2.7V to 5.5V, making it versatile for various USB power requirements. The TPS2042BDGNR also features built-in charge pump circuitry, which reduces the number of external components required for operation.

Quality and Reliability

As with all Texas Instruments products, the TPS2042BDGNR is manufactured to the highest quality standards, ensuring reliable performance in even the most demanding applications. It is RoHS compliant and designed to meet or exceed industry standards for power distribution switches.