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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Current Regulation/Management

Texas Instruments TPS26624DRCR

Name: TPS26624DRCR
Brand: Texas Instruments
SKU: TPS26624DRCR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS26624DRCR

Manufacturer:: Texas Instruments

Category:: Current Regulation/Management

Package:: 10-VFDFN Exposed Pad

Datasheet:: TPS26624DRCR.pdf

Description:: IC ELECTRONIC FUSE 5% 10VSON

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TPS26624DRCR from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input and output reverse polarity protection, 478-mΩ total R_ON, adjustable 25–880-mA current limit (±5% accuracy at 880 mA), and latch-off fault response. It operates from 4.5 V to 60 V and delivers fast reverse current blocking (0.3 µs) for PLC I/O modules and AC/servo drives requiring robust surge immunity per IEC 61000-4-5.

For engineers reviewing the TPS26624DRCR datasheet, TPS26624DRCR pinout, TPS26624DRCR application, or TPS26624DRCR equivalent, key selection criteria include its dual-side reverse polarity protection, programmable UVLO/OVP thresholds, dV/dt-controlled inrush limiting, and UL 2367 recognition with IEC 62368-1 certification - all in a compact 3 mm × 3 mm 10-pin VSON package.

Technical Context

The TPS26624DRCR integrates back-to-back MOSFETs enabling bidirectional reverse polarity protection: input-side down to –60 V and output-side down to –(60 – V_IN). Its internal protection control block implements latch-off response for overcurrent and overtemperature faults, distinguishing it from auto-retry variants like TPS26625.

Programmability is implemented via external resistors on UVLO (pin 2), OVP (pin 3), and ILIM (pin 7), and a capacitor on dVdT (pin 8) to set slew rate. The FLT pin provides open-drain fault indication, while SHDN (pin 4) enables low-power shutdown and manual reset of latched faults.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Voltage Range	4.5 V to 60 V - supports common industrial DC bus voltages including 12 V, 24 V, and 48 V systems.
Current Limit Range	25 mA to 880 mA (±5% accuracy at 880 mA) - set by resistor on ILIM pin; enables precise load protection without overdesign.
Total R_ON	478 mΩ max at 25°C - determines conduction loss (e.g., 0.34 W at 880 mA), critical for thermal management in enclosed enclosures.
Reverse Current Blocking Time	0.3 µs - isolates downstream circuitry within sub-microsecond during output polarity reversal, preventing damage to hold-up capacitors.
Fault Response Mode	Latch-off - holds OFF after overcurrent/overtemperature event until SHDN is cycled; prevents uncontrolled re-engagement in persistent fault conditions.
Package	10-pin VSON (DRC), 3.0 mm × 3.0 mm - surface-mount footprint compatible with high-density industrial PCB layouts and automated assembly.
Quiescent Current	340 µA operating / 12 µA shutdown - minimizes standby power draw in always-on systems such as sensor nodes and thermostat controllers.

Pinout & Package

TPS26624DRCR uses a thermally enhanced 10-pin VSON (DRC) package with exposed PowerPAD™ connected to RTN for heat dissipation. Pin 1 (IN) accepts 4.5–60 V input; pin 10 (OUT) delivers regulated output; pins 2–4 and 7–9 configure protection thresholds and timing.

Pin/Terminal	Circuit Role	Design Meaning
1 IN	Power input	Primary high-voltage supply connection; withstands –60 V reverse input polarity.
2 UVLO	Undervoltage lockout threshold input	Resistor-programmable threshold (1.2 V typical); opens FET if input drops below set point to prevent brownout operation.
3 OVP	Overvoltage protection threshold input	Resistor-programmable cut-off threshold (1.2 V typical); disables output when input exceeds set voltage.
4 SHDN	Shutdown control	Active-low input; pulls low to enter 12-µA shutdown mode and resets latched faults when toggled.
5 RTN	Reference ground	Internal reference node for UVLO, OVP, ILIM, and dVdT; must be tied to system return path.
6 GND	System ground	Power ground return for internal logic and fault reporting; separate from RTN to avoid noise coupling.
7 ILIM	Current limit programming	Resistor-to-RTN sets overload threshold (7.5 kΩ → 880 mA); enables single-component current scaling.
8 dVdT	Output slew rate control	Capacitor-to-RTN sets output ramp time (e.g., 22 nF → 11 ms); prevents inrush into large downstream capacitance.
9 FLT	Fault indicator output	Open-drain active-low signal; asserts during overcurrent, overvoltage, or thermal fault; requires external pull-up.
10 OUT	Power output	Protected output with reverse polarity blocking to –(60 – V_IN); supports hold-up during input brownout.

Key Features

Feature	Design Value
Integrated input & output reverse polarity protection	Eliminates need for external diodes or MOSFETs; protects against –60 V input and output-reverse conditions simultaneously.
Adjustable current limit with ±5% accuracy at 880 mA	Enables tight margining of upstream power supplies and reduces overdesign risk in cost-sensitive industrial systems.
Fast reverse current blocking (0.3 µs)	Prevents catastrophic discharge of output hold-up capacitors during polarity reversal, preserving system state during power fail.
Latch-off fault response	Ensures safe, stable isolation after overcurrent or overtemperature events until deliberate operator/system intervention via SHDN.
IEC 61000-4-5 surge compliance with minimal external components	Reduces BOM count and layout area for industrial equipment targeting EN 61000-4-5 Level 3 (2 kV line-earth, 1 kV line-line).

Applications

PLC I/O Modules	AC and Servo Drives
Use Scenario: Protecting digital/analog input/output channels from field wiring errors, induced transients, and reverse battery connections in modular automation racks. IC Role / Device Role / Timing Role: High-side eFuse providing input-stage protection, reverse polarity blocking, and programmable current limiting per channel. Use Value: Prevents channel destruction due to miswiring while maintaining <0.3 µs reverse-current isolation - critical for deterministic I/O behavior during maintenance.	Use Scenario: Safeguarding gate driver and control logic power rails in motor drive inverters exposed to regenerative energy and bus voltage reversals. IC Role / Device Role / Timing Role: Input protection device with bidirectional reverse polarity blocking and IEC 61000-4-5 surge handling on 24 V/48 V control supply. Use Value: Enables reliable operation under regenerative braking-induced negative bus excursions without external clamping diodes or TVS arrays.
Sensor and Controls	Thermostat Systems
Use Scenario: Securing 24 V loop-powered sensors (e.g., 4–20 mA transmitters) against cable shorts, ESD, and incorrect field termination. IC Role / Device Role / Timing Role: Precision current-limited power switch with ±5% trip accuracy and fast short-circuit shutdown (220 ns). Use Value: Guarantees sensor survival during sustained shorts while minimizing false trips caused by transient inrush or lightning-induced surges.	Use Scenario: Managing power delivery to microcontroller, display, and HVAC interface circuits in residential/commercial thermostats with long wiring runs. IC Role / Device Role / Timing Role: Low-quiescent (340 µA) eFuse with programmable UVLO and dV/dt-controlled startup to prevent relay chatter during brownouts. Use Value: Extends battery backup runtime and ensures clean power sequencing across temperature ranges from –40°C to +125°C.

PLC I/O Modules

AC and Servo Drives

Use Scenario: Protecting digital/analog input/output channels from field wiring errors, induced transients, and reverse battery connections in modular automation racks.

IC Role / Device Role / Timing Role: High-side eFuse providing input-stage protection, reverse polarity blocking, and programmable current limiting per channel.

Use Value: Prevents channel destruction due to miswiring while maintaining <0.3 µs reverse-current isolation - critical for deterministic I/O behavior during maintenance.

Use Scenario: Safeguarding gate driver and control logic power rails in motor drive inverters exposed to regenerative energy and bus voltage reversals.

IC Role / Device Role / Timing Role: Input protection device with bidirectional reverse polarity blocking and IEC 61000-4-5 surge handling on 24 V/48 V control supply.

Use Value: Enables reliable operation under regenerative braking-induced negative bus excursions without external clamping diodes or TVS arrays.

Sensor and Controls

Thermostat Systems

Use Scenario: Securing 24 V loop-powered sensors (e.g., 4–20 mA transmitters) against cable shorts, ESD, and incorrect field termination.

IC Role / Device Role / Timing Role: Precision current-limited power switch with ±5% trip accuracy and fast short-circuit shutdown (220 ns).

Use Value: Guarantees sensor survival during sustained shorts while minimizing false trips caused by transient inrush or lightning-induced surges.

Use Scenario: Managing power delivery to microcontroller, display, and HVAC interface circuits in residential/commercial thermostats with long wiring runs.

IC Role / Device Role / Timing Role: Low-quiescent (340 µA) eFuse with programmable UVLO and dV/dt-controlled startup to prevent relay chatter during brownouts.

Use Value: Extends battery backup runtime and ensures clean power sequencing across temperature ranges from –40°C to +125°C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS26625DRCR	Same pinout, identical specs except auto-retry fault response instead of latch-off; shares same 478-mΩ R_ON, dual reverse polarity, and 25–880-mA ILIM range.	Suitable where automatic recovery after transient overloads is preferred (e.g., non-safety-critical sensor nodes); not appropriate for fault-locked safety interlocks.	Select TPS26625DRCR only if system architecture permits repeated engagement after overcurrent events without manual reset.
TPS26634DRCR	Higher 1.5-A current rating, same 4.5–60 V range and latch-off response, but lacks output reverse polarity protection (input-side only); 375-mΩ R_ON.	Applicable where higher current capacity is needed but output-side reverse polarity risk is absent (e.g., centralized power distribution boards).	Choose TPS26634DRCR when >880 mA load current is required and output reverse polarity is not a design concern.

Compared with TPS26624DRCR, TPS26625DRCR offers identical protection features but replaces latch-off with auto-retry - altering system-level fault recovery behavior - while TPS26634DRCR trades output reverse polarity capability for higher current rating and lower R_ON, making it suitable for different architectural trade-offs.

Availability

TPS26624DRCR is available at Aetrix Electronics and suitable for PLC I/O modules, AC/servo drives, and sensor/control systems requiring stable component supply, long-term industrial lifecycle support, and compliance with IEC 62368-1 and UL 2367 standards.

Supply support for TPS26624DRCR 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 TPS2662x product line was engineered specifically for industrial power rail protection - delivering integrated reverse polarity, surge-hardened eFuse functionality, and programmable fault responses in space-constrained 3 mm × 3 mm packages.

FAQ

What is the maximum reverse voltage the TPS26624DRCR supports on its output pin?

The TPS26624DRCR supports output reverse polarity protection down to –(60 – V_IN) - meaning at 24 V input, it blocks up to –36 V on the OUT pin. This capability is exclusive to TPS26624 and TPS26625 variants and eliminates need for external reverse-blocking diodes in hold-up capacitor configurations. The specification is validated per absolute maximum ratings and confirmed in the device comparison table and pin function description for OUT.

How does the TPS26624DRCR differ from the TPS26620DRCR?

The TPS26624DRCR and TPS26620DRCR share identical latch-off fault response and adjustable overvoltage cut-off, but TPS26624DRCR adds output reverse polarity protection - a feature absent in TPS26620DRCR. Both use the same 10-pin VSON package and 478-mΩ R_ON, but TPS26624DRCR's dual-side protection makes it suitable for systems with output-side wiring risks, such as distributed I/O with local energy storage.

What external components are required to configure the current limit on the TPS26624DRCR?

To configure the current limit on the TPS26624DRCR, a single resistor (R_ILIM) must be connected between pin 7 (ILIM) and pin 5 (RTN). Values from 7.5 kΩ (880 mA) to 267 kΩ (25 mA) set the threshold with ±5% accuracy at full scale. No additional capacitors or active components are needed - the resistor directly programs the internal current-sense amplifier gain, as specified in Section 7.5 Electrical Characteristics and Figure 6-1 pinout diagram.

Does the TPS26624DRCR provide overvoltage clamp or overvoltage cut-off protection?

The TPS26624DRCR provides overvoltage cut-off protection - not clamping. When the OVP pin threshold is exceeded, the internal FET opens to disconnect the load, as confirmed in the Device Comparison Table and Section 9.3 Feature Description. Fixed 38-V overvoltage clamping is exclusive to TPS26622/TPS26623; TPS26624DRCR uses resistor-programmable cut-off with typical threshold of 1.2 V at the OVP pin, corresponding to user-defined bus voltage limits.

What is the thermal performance of the TPS26624DRCR in a standard PCB layout?

In a 2-layer board with 2 oz copper, the TPS26624DRCR exhibits a junction-to-ambient thermal resistance (R_θJA) of 44.8°C/W and junction-to-board (R_θJB) of 20.7°C/W, per Section 7.4 Thermal Information. With its exposed PowerPAD™ connected to RTN plane, it sustains 880 mA continuous current at +125°C ambient when properly heatsinked - verified by thermal shutdown timing curves in Figure 7-23 and R_ON vs temperature data in Figure 7-1.

TPS26624DRCR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 10-VFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Electronic Fuse

Sensing Method:: -

Accuracy:: ±5%

Voltage - Input:: 4.5V ~ 60V

Current - Output:: 880mA

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-VSON (3x3)

TPS26624DRCR FAQ

1.How can I place an order for TPS26624DRCR through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS26624DRCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS26624DRCR reliable?

The price and inventory of TPS26624DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26624DRCR is usually 5 days.

3.What payment methods are accepted for TPS26624DRCR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26624DRCR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS26624DRCR?

TPS26624DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS26624DRCR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS26624DRCR?

For technical support, including TPS26624DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26624DRCR requirements.

6.How does Aetrix verify that TPS26624DRCR is sourced from the original manufacturer or authorized distributors?

All TPS26624DRCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS26624DRCR meets industry standards.

7.What is the process for return or replacement of TPS26624DRCR?

All TPS26624DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS26624DRCR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS26624DRCR part is unused and in its original packaging.

Return procedure for TPS26624DRCR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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