Texas Instruments TPS26601RHFR

Overview

TPS26601RHFR from Texas Instruments is a 60-V, 2-A industrial eFuse IC with integrated reverse input polarity protection down to –60 V, 150-mΩ total R_ON, adjustable current limit (0.1–2.23 A ±5% at 1 A), and selectable fault response (latch-off mode). It serves as a high-voltage load switch and protection controller in programmable logic controllers and redundant power ORing circuits.

For engineers reviewing the TPS26601RHFR datasheet, TPS26601RHFR pinout, TPS26601RHFR application, or TPS26601RHFR equivalent, key selection considerations include its –60-V reverse polarity tolerance, latch-off fault behavior (distinguished from TPS26600/TPS26602), 24-pin VQFN package, IMON current monitor accuracy (±8.5%), and UL 2367 recognition.

Technical Context

The TPS26601RHFR integrates back-to-back N-channel MOSFETs for bidirectional blocking-enabling reverse current prevention during brownout and holdup conditions. Its internal control architecture includes independent UVLO, OVP (adjustable cut-off), dV/dt slew-rate control via external capacitor, and MODE-pin-configurable fault handling.

It implements precise overcurrent detection using an ILIM resistor network, thermal shutdown at 157°C with 10°C hysteresis, and a dedicated open-drain FLT output for system-level fault signaling. The IMON pin provides a 72–85 µA/A scaled analog current monitor output referenced to RTN.

Key Specifications

Pinout & Package

TPS26601RHFR uses a 24-pin VQFN (RHF) package with 5.0 mm × 4.0 mm body size and exposed thermal PowerPad connected to RTN. Pin functions are validated per TI SLVSDG2G datasheet Rev G (December 2019).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar eFuse applications.

Compared with TPS26600RHFR and TPS26602RHFR, the TPS26601RHFR uniquely combines latch-off fault response with adjustable OVP cut-off - making it the sole option for industrial applications requiring persistent isolation after overcurrent while retaining programmable overvoltage thresholds.

Availability

TPS26601RHFR is available at Aetrix Electronics and suitable for programmable logic controller backplanes, distributed control system ORing, and industrial surge protection requiring stable component supply, long-term lifecycle support, and UL-recognized safety certification.

Supply support for TPS26601RHFR 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 specializing in analog, embedded processing, and high-reliability power management solutions for industrial, automotive, and communications markets.

The TPS2660x family was designed specifically for industrial-grade electronic fusing - delivering integrated reverse polarity protection, programmable protection thresholds, and safety certifications to replace discrete protection circuits in PLCs, DCS, and factory automation equipment.

FAQ

What is the fault response behavior of the TPS26601RHFR?

The TPS26601RHFR enters latch-off mode upon overcurrent, OVP, UVLO, or thermal shutdown when the MODE pin is left open - disabling the internal FETs until SHDN is cycled low-then-high. This behavior is confirmed in the Device Comparison Table and Pin Functions section of the SLVSDG2G datasheet. Unlike TPS26600RHFR, the TPS26601RHFR does not auto-retry by default, making it suitable for safety-critical industrial applications requiring persistent fault isolation.

Does the TPS26601RHFR support reverse input polarity protection?

Yes, the TPS26601RHFR integrates reverse input polarity protection down to –60 V with zero additional components required - verified in the Features section and Absolute Maximum Ratings table (IN, IN-OUT: –60 V). This capability relies on internal back-to-back MOSFETs and is functionally identical across the TPS2660x family, including the TPS26601RHFR.

What package type and thermal performance does the TPS26601RHFR use?

The TPS26601RHFR uses a 24-pin VQFN (RHF) package measuring 5.0 mm × 4.0 mm with an exposed PowerPad connected to RTN. Its junction-to-ambient thermal resistance is 30.2°C/W, and junction-to-board is 7.6°C/W - enabling 2-A continuous operation with appropriate PCB copper area. These values are specified in Section 7.4 of the SLVSDG2G datasheet and apply specifically to the TPS26601RHFR in RHF packaging.

How is the current limit adjusted on the TPS26601RHFR?

The TPS26601RHFR current limit is set by an external resistor (R_ILIM) connected between the ILIM pin and RTN. With R_ILIM = 5.36 kΩ, the limit is 2.23 A (±5% at 1 A); with 120 kΩ, it drops to 0.1 A. Open and short conditions on ILIM yield 55 mA and 95 mA respectively - supporting UL60950 single-point failure testing. All values are documented in Section 7.5 Electrical Characteristics for the TPS26601RHFR.

Is the TPS26601RHFR UL-certified?

Yes, the TPS26601RHFR is UL 2367 Recognized (File No. 169910) and compliant with UL60950 for safe operation during single-point failure - confirmed in the Features section and Electrical Characteristics table (I(OL_R-OPEN)/I(OL_R-SHORT)). This certification applies to the TPS26601RHFR device itself and covers its overcurrent, thermal, and open/short ILIM fault responses.