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Texas Instruments TPS26600RHFR
- Part No.:
- TPS26600RHFR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS26600RHFR.pdf
- Description:
- IC ELECTRONIC FUSE 5% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
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Product details
Overview
TPS26600RHFR 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 RON, ±5% current limit accuracy at 1 A, and selectable fault response (circuit breaker with auto-retry). It protects PLC power rails against overcurrent, surge (IEC 61000-4-5), reverse voltage, and overvoltage events.
For engineers reviewing the TPS26600RHFR datasheet, TPS26600RHFR pinout, TPS26600RHFR application, or TPS26600RHFR equivalent, this page delivers verified electrical specs, thermal behavior across –40°C to +125°C, IMON current monitoring accuracy (±8.5%), UVLO/OVP adjustability, and HTSSOP package layout guidance - all critical for industrial power-rail hardening and redundant supply ORing designs.
Technical Context
The TPS26600RHFR implements dual back-to-back N-channel MOSFETs with integrated gate drivers and robust protection control logic. Its reverse polarity protection operates without external components by sensing VIN–VOUT differential thresholds (–10 mV falling, +96 mV rising) and disabling conduction within 1.5 µs.
It supports three fault-handling modes via the MODE pin: circuit breaker with auto-retry (default), latch-off (TPS26601), or current-limiting with auto-retry. The device features programmable dV/dt control (via external capacitor on dVdT pin), IMON analog current monitor (78.28 µA/A gain), and UL 2367/UL60950 safety certification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2 V to 60 V continuous; withstands ±62 V absolute max - enables use across 12 V, 24 V, and 48 V industrial DC buses. |
| Current Limit Accuracy | ±5% at 1 A (RILIM = 12 kΩ); supports precise load protection tuning from 0.1 A to 2.23 A using external resistor. |
| Total RON | 150 mΩ typical at 25°C (80–250 mΩ over –40°C to +125°C); minimizes power loss and thermal rise in high-current paths. |
| IMON Gain Accuracy | ±8.5% (72–85 µA/A); provides reliable downstream current sensing for diagnostics without external amplification. |
| Quiescent Current | 300 µA operating / 20 µA shutdown; reduces standby power in always-on industrial systems. |
| Reverse Polarity Protection | Blocks –60 V input without external diodes or MOSFETs; eliminates need for discrete reverse-voltage solutions. |
| Thermal Shutdown | 157°C trip with 10°C hysteresis; prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
TPS26600RHFR is packaged in a 16-pin HTSSOP (PWP) with 5.00 mm × 4.40 mm body size and exposed PowerPad™ for thermal enhancement. The PowerPad must be connected to RTN via multiple vias.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | Main high-voltage supply input (4.2–60 V); connects to upstream DC bus or redundant source. |
| OUT | Power Output | Switched output to protected load; supports holdup during brownout via reverse current blocking. |
| GND | Ground Reference | System ground connection for internal bias and logic; separate from RTN (not electrically tied). |
| RTN | Return Reference | Analog reference node for UVLO, OVP, ILIM, IMON, and dVdT circuits; must connect to system return plane. |
| SHDN | Shutdown Control | Active-low enable/disable; pulls device into 20-µA shutdown and resets latched faults when cycled. |
| MODE | Fault Response Select | Configures fault behavior: open = circuit breaker with auto-retry (TPS26600 default), short = current-limiting with auto-retry. |
| ILIM | Current Limit Set | Resistor-to-RTN sets overload threshold (0.1–2.23 A); open/short detection satisfies UL60950 single-point failure test. |
| IMON | Current Monitor Output | Analog current-sense output (78.28 µA/A); requires external resistor to RTN for voltage conversion (e.g., 10 kΩ → 0.78 V/A). |
| UVLO | Undervoltage Lockout | Programmable input (1.1–1.225 V threshold); asserts FLT and disables FETs if input drops below set point. |
| OVP | Overvoltage Protection | Adjustable cut-off input (1.085–1.225 V threshold); disables FETs and asserts FLT on overvoltage (TPS26600/1 only). |
| dVdT | Slew Rate Control | Capacitor-to-RTN sets output ramp time (e.g., 47 nF → 10 ms); prevents inrush current during hot-plug events. |
| FLT | Fault Indicator | Open-drain active-low flag; signals UVLO, OVP, overcurrent, thermal shutdown, or reverse polarity fault. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reverse Polarity Protection | Blocks –60 V input without external components - eliminates BOM cost and board space for discrete reverse-protection solutions. |
| Programmable dV/dt Control | External capacitor on dVdT pin sets output slew rate (e.g., 0–10 ms ramp), enabling controlled hot-plug insertion and inrush limiting. |
| UL 2367 & UL60950 Certification | Recognized under File No. 169910; includes open/short ILIM detection and thermal fault handling for safety-critical industrial deployments. |
| IMON Analog Current Monitor | 78.28 µA/A gain with ±8.5% accuracy enables real-time load current measurement without shunt resistors or op-amps. |
| Selectably Configured Fault Response | MODE pin selects circuit breaker (auto-retry), latch-off, or current-limiting - matching protection strategy to system recovery requirements. |
| Robust Surge Immunity | Withstands IEC 61000-4-5 surge events using minimal external components (no TVS required for basic compliance). |
Applications
| PLC Power Rail Protection | Distributed Control System (DCS) |
|---|---|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers against reverse connection, surges, and short circuits during field maintenance. IC Role / Device Role / Timing Role: Primary eFuse providing input-stage protection, current limiting, and fault signaling to controller MCU. Use Value: Eliminates need for external reverse-polarity diodes and fuses; enables automatic recovery after transient overloads without manual reset. |
Use Scenario: Securing redundant 48 V power feeds in distributed control cabinets where ORing and fault isolation are mandatory. IC Role / Device Role / Timing Role: Redundant supply ORing controller with reverse-current blocking and fast-trip (<250 ns) short-circuit response. Use Value: Prevents backfeed between supplies and ensures uninterrupted operation during single-supply failure or miswiring. |
| Industrial Surge Protection | Control & Automation Power Management |
Use Scenario: Hardening Ethernet-powered I/O modules against IEC 61000-4-5 Level 3 (1 kV line-earth) surges in factory environments. IC Role / Device Role / Timing Role: Front-end surge protector with integrated clamp-free overvoltage cut-off and thermal foldback. Use Value: Achieves compliance with minimal external parts (no TVS needed), reducing component count and PCB area vs discrete solutions. |
Use Scenario: Managing power sequencing and health monitoring for servo drive auxiliary rails in motion control systems. IC Role / Device Role / Timing Role: Smart power switch with IMON-based load current telemetry and programmable UVLO for brownout resilience. Use Value: Enables predictive maintenance via current trend analysis and prevents undervoltage-induced firmware lockups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26601RHFR | Latch-off fault response (not auto-retry); same pinout, RON, and voltage range. | Used where permanent shutdown is required after first overcurrent event (e.g., safety interlocks). | Select TPS26601RHFR when system architecture mandates non-auto-recovering fault behavior. |
| TPS26630RHFR | Lower 36-V max input, 3.5-A rating, integrated 1.5-A LDO, no reverse polarity protection. | Targets lower-voltage embedded systems needing local regulation; lacks –60 V reverse blocking. | Choose TPS26630RHFR only for <36 V applications requiring integrated LDO and higher current, not reverse protection. |
Compared with TPS26600RHFR, TPS26601RHFR offers identical protection features but latches off permanently on fault - suitable for safety-critical lockout - while TPS26630RHFR trades reverse polarity support and 60-V capability for integrated LDO and higher current, limiting its use to sub-36 V domains.
Availability
TPS26600RHFR is available at Aetrix Electronics and suitable for programmable logic controller (PLC) power rail protection, distributed control system (DCS) redundancy, and industrial surge protection requiring stable component supply and long-term industrial lifecycle support.
Supply support for TPS26600RHFR 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 power management ICs, with deep expertise in industrial-grade reliability and safety-certified design.
The TPS2660x family was engineered specifically for industrial power-rail protection - delivering integrated reverse polarity blocking, surge resilience, and configurable fault responses in compact packages for harsh environments.
FAQ
What is the maximum input voltage rating for the TPS26600RHFR?
The TPS26600RHFR has an absolute maximum input voltage rating of 62 V and a recommended operating maximum of 60 V. It also withstands –70 V transients for 10 ms at 25°C. This 60-V continuous rating allows direct use on 48 V industrial DC buses with margin for ripple and transients, and its –60 V reverse polarity tolerance eliminates need for external blocking diodes.
Does the TPS26600RHFR support reverse current blocking?
Yes, the TPS26600RHFR provides integrated reverse current blocking via dual back-to-back MOSFETs. It detects reverse voltage conditions using internal comparators with –10 mV (falling) and +96 mV (rising) VIN–VOUT thresholds, disabling conduction within 1.5 µs. This feature enables safe holdup during power-fail scenarios and eliminates external reverse-protection components.
How is the current limit adjusted on the TPS26600RHFR?
The TPS26600RHFR uses an external resistor (RILIM) from the ILIM pin to RTN to set the current limit between 0.1 A and 2.23 A. For example, 120 kΩ yields ~0.1 A, 12 kΩ yields ~1 A, and 5.36 kΩ yields ~2.23 A - all with ±5% accuracy at 1 A. Open or shorted RILIM is detected per UL60950 for single-point failure safety.
What fault response modes does the TPS26600RHFR support?
The TPS26600RHFR defaults to circuit breaker mode with auto-retry (MODE pin open). It can be configured for current-limiting with auto-retry (MODE shorted to RTN) but does not support latch-off - that function is exclusive to the TPS26601RHFR variant. All modes use the same FLT pin to signal faults, with timing differences in retry delay (540 ms) or fast-trip assertion (250 ns).
Is the TPS26600RHFR certified for industrial safety standards?
Yes, the TPS26600RHFR is UL 2367 Recognized (File No. 169910) and UL60950 certified for safe operation during single-point failures. It includes open/short RILIM detection, thermal shutdown with hysteresis, and fault-flag reporting - all documented to aid functional safety system design per IEC 61508.
TPS26600RHFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- -
- Accuracy:
- ±5%
- Voltage - Input:
- 4.2V ~ 55V
- Current - Output:
- 2.35A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (5x4)
TPS26600RHFR FAQ
1.How can I place an order for TPS26600RHFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26600RHFR 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 TPS26600RHFR reliable?
The price and inventory of TPS26600RHFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26600RHFR is usually 5 days.
3.What payment methods are accepted for TPS26600RHFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26600RHFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26600RHFR?
TPS26600RHFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26600RHFR 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 TPS26600RHFR?
For technical support, including TPS26600RHFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26600RHFR requirements.
6.How does Aetrix verify that TPS26600RHFR is sourced from the original manufacturer or authorized distributors?
All TPS26600RHFR 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 TPS26600RHFR meets industry standards.
7.What is the process for return or replacement of TPS26600RHFR?
All TPS26600RHFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS26600RHFR, 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 TPS26600RHFR part is unused and in its original packaging.
Return procedure for TPS26600RHFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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