Texas Instruments TPS2014P

Overview

TPS2014P from Texas Instruments is a high-side power distribution switch IC designed for USB-compliant 5-V hot-plug power management in self-powered and bus-powered hubs. It integrates an n-channel MOSFET with 95-mΩ typical on-resistance, 0.6-A recommended continuous current, 1.2-A short-circuit current limit, and fault reporting via open-drain OC pin - enabling robust overcurrent protection and host notification in USB 1.0 systems.

For engineers reviewing the TPS2014P datasheet, TPS2014P pinout, TPS2014P application, or TPS2014P equivalent, this device delivers fast 10-µs trip time, controlled rise/fall times for inrush limiting, undervoltage lockout, thermal shutdown, and logic-level enable compatibility with both 3.3-V and 5-V controllers - critical for hub port power control, fault recovery, and compliance with USB voltage regulation (≤100 mV drop) and hot-insertion transient limits (≤330 mV droop).

Technical Context

The TPS2014P implements a charge-pump–driven high-side n-MOSFET with internal current-sensing and thermal foldback. Its constant-current limiting mode activates within 10 µs upon exceeding 1.2-A short-circuit threshold, sustaining fault current until removal or disable - unlike fuses or PTCs that degrade or require reset. The integrated UVLO ensures default-off behavior at startup below 4 V.

It features an open-drain overcurrent logic output (OC) that pulls low during fault conditions, directly interfacing with USB hub controllers for real-time fault reporting without external circuitry. Gate drive rise/fall times are internally controlled to limit inrush current during hot insertion of downstream devices - eliminating need for external RC networks or discrete MOSFET gate drivers.

Key Specifications

Pinout & Package

TPS2014P is housed in an 8-pin Plastic Dual Inline Package (PDIP) with standard through-hole mounting and 0.3-inch body width. Pin spacing is 0.1 inch, compatible with legacy prototyping and industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side USB power switch applications.

Compared with TPS2014P, TPS2014D offers identical functionality in surface-mount form for automated assembly, while TPS2051B delivers lower on-resistance and added reverse-voltage blocking - making it suitable for next-generation USB hubs needing improved efficiency and fault resilience, though neither is pin-compatible with the PDIP-packaged TPS2014P.

Availability

TPS2014P is available at Aetrix Electronics and suitable for USB hub development, industrial peripheral interfaces, and embedded host controller power management requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS2014P includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The TPS2014P belongs to TI's USB Power Distribution Switch family, engineered specifically to replace fuses and PTCs in USB 1.0-compliant hubs - emphasizing fast fault response, integrated fault reporting, and inrush control for reliable hot-plug operation.

FAQ

What is the maximum continuous current rating for the TPS2014P?

The TPS2014P has a recommended maximum continuous load current of 0.6 A at temperatures from 0°C to 125°C. This rating ensures reliable operation under sustained USB 1.0 port loads (up to 500 mA) with thermal margin. Exceeding this current may trigger thermal shutdown or reduce lifetime reliability. The TPS2014P achieves this with its 95-mΩ typical on-resistance and internal thermal foldback circuitry.

Does the TPS2014P support 3.3-V logic-level enable inputs?

Yes, the TPS2014P EN pin accepts 3.3-V or 5-V logic-high signals for activation - no level-shifting required. Its input threshold is designed for compatibility with both USB hub microcontrollers and FPGA I/O banks. When EN is low or floating, the internal pull-down ensures the switch remains off. This dual-voltage compatibility simplifies integration into mixed-signal USB host systems using either voltage domain.

How does the TPS2014P provide fault reporting to the USB host controller?

The TPS2014P uses an open-drain OC (overcurrent) pin that pulls low during overcurrent or thermal fault conditions. This signal connects directly to a GPIO or interrupt input on the host controller, eliminating need for external comparators or optocouplers. The OC pin remains low until the fault clears or EN is toggled - enabling precise fault logging and port-level recovery in USB hub firmware. No external pull-up resistor is strictly required if the host provides one.

Can the TPS2014P be used in bus-powered USB hubs?

Yes, the TPS2014P is explicitly validated for bus-powered hub applications per TI Application Report SLVA037A. Its controlled rise time limits inrush current during hot insertion, and its 120-mΩ max on-resistance meets USB's 225-mΩ allowance for ganged 4-port configurations. Combined with UVLO, it ensures ports stay off until hub enumeration completes - satisfying the USB requirement for <100-mA startup current.

What is the purpose of the NC pins on the TPS2014P PDIP package?

Pins 2 and 7 of the TPS2014P PDIP package are designated NC (No Connect) - they have no internal bond wire or circuit connection. These pins must remain unconnected in PCB layout and schematic design. Routing traces to or placing vias on NC pins may cause unintended coupling or mechanical stress. TI confirms these pins serve only mechanical alignment and thermal mass functions in the PDIP mold compound - no electrical role is assigned.