My Inquiry
My Account
Texas Instruments TPS26602RHFT
- Part No.:
- TPS26602RHFT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS26602RHFT.pdf
- Description:
- IC ELECTRONIC FUSE 5% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:327
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS26602RHFT from Texas Instruments is a 60-V, 2-A industrial eFuse IC with integrated reverse input polarity protection down to –60 V, fixed 38-V overvoltage clamp, and adjustable current limit (0.1–2.23 A ±5% at 1 A). It features back-to-back MOSFETs with 150-mΩ total RON, IMON current monitor output (±8.5% accuracy), and selectable fault response modes (Auto-Retry, Latch Off, Circuit Breaker) via MODE pin. Used in programmable logic controllers and redundant supply ORing for surge-protected DC bus power distribution.
For engineers reviewing the TPS26602RHFT datasheet, TPS26602RHFT pinout, TPS26602RHFT application, or TPS26602RHFT equivalent, key selection criteria include its fixed 38-V OVP clamp (vs. adjustable OVP in TPS26600/1), HTSSOP-16 package with PowerPad, –40°C to +125°C operation, reverse polarity blocking, and UL 2367/UL60950 certification for safety-critical industrial systems.
Technical Context
The TPS26602RHFT implements dual back-to-back N-channel MOSFETs for bidirectional reverse-current blocking and ±60-V input tolerance. Its internal protection control block integrates fast-trip overcurrent detection (250 ns delay), thermal shutdown (157°C threshold with 10°C hysteresis), and precise voltage monitoring for UVLO (14.9 V nominal trip), OVP clamp (37.5 V typical), and dV/dt-controlled output slew rate.
Control is enabled via dedicated pins: ILIM sets current limit with resistor-to-RTN, SHDN enables low-power shutdown (20 µA), MODE selects fault response mode, and FLT provides open-drain fault indication. The IMON output delivers a scaled analog current (78.28 µA/A typical) for real-time load monitoring without external sensing resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2 V to 60 V operating; withstands –60 V reverse input - enables robust operation across industrial DC buses including 24 V, 36 V, 48 V, and 60 V systems. |
| Current Limit Range | 0.1 A to 2.23 A (±5% accuracy at 1 A) - set by ILIM resistor (5.36 kΩ to 120 kΩ); supports precise overload protection for diverse load profiles. |
| Overvoltage Response | Fixed 38-V clamp (36–40 V range) - limits transient overvoltage without shutting down; distinct from TPS26600/1's adjustable cut-off. |
| RON (Total) | 150 mΩ typical at 25°C - minimizes conduction loss and self-heating; increases to 250 mΩ max over full temperature range (–40°C to +125°C). |
| Quiescent Current | 300 µA operating / 20 µA shutdown - enables always-on monitoring in energy-sensitive industrial nodes without compromising runtime. |
| Operating Temperature | –40°C to +125°C junction - qualified for harsh environments including factory automation, DCS cabinets, and outdoor control enclosures. |
| Protection Certifications | UL 2367 Recognized (File No. 169910); UL60950 compliant - validated for single-point-failure safety in industrial equipment per IEC/EN 62368-1. |
Pinout & Package
TPS26602RHFT is packaged in a 16-pin HTSSOP (PWP) with exposed PowerPad (5.00 mm × 4.40 mm body). The PowerPad must be soldered to the RTN plane using multiple vias for thermal performance and electrical reference integrity.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN | High-voltage input supply rail; accepts 4.2–60 V and tolerates –60 V reverse polarity. |
| 15, 16 | OUT | Protected output rail; isolated from IN during faults; supports holdup during brownout via reverse-blocking FETs. |
| 9 | GND | Signal ground reference for internal comparators and control logic; separate from RTN. |
| 8 | RTN | Return node for internal bias circuits and external resistor networks (ILIM, UVLO, OVP, dVdT, IMON). |
| 11 | ILIM | Resistor-to-RTN sets current limit threshold; open/short detection supports UL60950 single-point-failure compliance. |
| 10 | IMON | Analog current monitor output (78.28 µA/A typical); converts load current to proportional voltage when terminated to RTN. |
| 7 | SHDN | Active-high enable; pulls device into 20-µA shutdown state; cycling resets latched faults. |
| 6 | MODE | Selects fault response: open = Auto-Retry circuit breaker; short-to-RTN = current-limiting auto-retry; 402-kΩ-to-RTN = latch-off. |
| 3 | UVLO | Resistor-to-RTN sets undervoltage lockout threshold (default 14.9 V); asserts FLT on brownout. |
| 5 | OVP | Connected to RTN for fixed 38-V clamp mode (TPS26602-specific); not used for adjustable OVP. |
| 12 | dVdT | Capacitor-to-RTN sets output slew rate; controls inrush during hot-plug events (e.g., 10 ms ramp with 47 nF). |
| 14 | FLT | Open-drain fault flag; sinks current on UVLO, OVP, overcurrent, thermal shutdown, or reverse-polarity events. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reverse Polarity Protection | Blocks –60 V input without external diodes or MOSFETs - eliminates BOM cost and PCB area for negative-supply fault handling. |
| Fixed 38-V Overvoltage Clamp | Clamps transients above 36–40 V while maintaining output continuity - avoids system reset during IEC 61000-4-5 surge events. |
| Adjustable Output Slew Rate | Programmable dV/dt via external capacitor (e.g., 47 nF → 10 ms ramp) - prevents inrush damage to downstream capacitors and loads. |
| Precision Current Monitoring | IMON output with ±8.5% gain accuracy (72–85 µA/A) - enables closed-loop load diagnostics without shunt resistor losses or layout sensitivity. |
| Functional Safety Support | Documentation available for ISO 26262/IEC 61508 system-level FMEDA - simplifies safety case development for SIL2/ASIL B applications. |
| UL-Recognized Construction | UL 2367 File No. 169910 and UL60950 certification - validates robustness under fault conditions including ILIM open/short failure modes. |
Applications
| Programmable Logic Controller (PLC) Power Distribution | Distributed Control System (DCS) Redundant Supply ORing |
|---|---|
|
Use Scenario: Powering I/O modules and CPU backplanes in modular PLC chassis where 24 V or 48 V DC bus must survive field wiring faults and ESD events. IC Role / Device Role / Timing Role: Primary eFuse providing reverse polarity blocking, 38-V transient clamping, and 2.23-A adjustable current limiting on each slot's power rail. Use Value: Eliminates need for discrete TVS diodes and series MOSFETs while meeting IEC 61000-4-5 Level 3 surge immunity (2 kV line-earth) without derating. |
Use Scenario: ORing two independent 48 V supplies in a DCS cabinet to maintain uptime during primary supply failure or maintenance. IC Role / Device Role / Timing Role: Bidirectional eFuse enabling seamless switchover with reverse-current blocking and <10 µs fault detection latency. Use Value: Prevents backfeed between supplies and ensures <4 ms fault isolation during overcurrent, avoiding cascading failures across redundant paths. |
| Industrial Surge Protection Interface | Factory Automation Load Management |
|
Use Scenario: Front-end protection for Ethernet-powered devices, motor drives, and sensor hubs connected to long cable runs susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense with integrated 38-V clamp, 150-mΩ RON, and fast-trip comparator (250 ns) for hot-short events. Use Value: Achieves IEC 61000-4-5 4 kV surge protection with only one external dVdT capacitor - reduces component count by ≥4 vs. discrete solutions. |
Use Scenario: Power sequencing and health monitoring of servo amplifier banks, vision systems, and HMI panels in synchronized production lines. IC Role / Device Role / Timing Role: Programmable eFuse with IMON feedback and MODE-configurable fault response for predictive maintenance and graceful degradation. Use Value: Enables real-time current profiling (via IMON) and configurable retry/latch behavior to avoid unplanned shutdowns during momentary overloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26600RHFT | Adjustable overvoltage cut-off (not fixed clamp); requires external resistor network on OVP pin. | Better suited for systems requiring programmable OVP thresholds above 38 V or coordinated multi-rail shutdown. | Select TPS26600RHFT when OVP threshold must be tuned (e.g., 42 V or 55 V) and fault response must be circuit-breaker with auto-retry. |
| TPS26601RHFT | Same adjustable OVP as TPS26600 but uses latch-off fault response instead of auto-retry when MODE is open. | Ideal for safety-critical loads where persistent fault isolation is mandatory after first overcurrent event. | Choose TPS26601RHFT for applications requiring guaranteed lockout after fault (e.g., emergency stop circuits) without manual reset. |
Compared with TPS26600RHFT and TPS26601RHFT, the TPS26602RHFT trades programmable OVP for deterministic 38-V clamping - reducing design complexity and external components while prioritizing continuous operation during moderate overvoltage events.
Availability
TPS26602RHFT is available at Aetrix Electronics and suitable for programmable logic controller (PLC) power distribution, distributed control system (DCS) redundant supply ORing, and industrial surge protection interfaces requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for TPS26602RHFT 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 DC power distribution - delivering integrated reverse polarity protection, surge resilience, and functional safety support in compact HTSSOP/VQFN packages.
FAQ
What is the overvoltage protection mechanism of the TPS26602RHFT?
The TPS26602RHFT implements a fixed 38-V overvoltage clamp (36–40 V range), not a cut-off. When input exceeds this threshold, internal circuitry limits VOUT to ~38 V while maintaining power delivery - unlike TPS26600/1 which disable the FETs. This behavior is inherent to the TPS26602RHFT silicon and requires OVP pin tied to RTN.
Can the TPS26602RHFT be used in reverse-polarity input scenarios?
Yes. The TPS26602RHFT integrates back-to-back MOSFETs that block reverse current down to –60 V input without external components. When VIN is negative relative to OUT, the device prevents reverse conduction and asserts FLT - a core feature confirmed in the datasheet's "Reverse Input Polarity Protection at –60-V Supply" section and absolute maximum ratings.
How is current limit adjusted on the TPS26602RHFT?
Current limit is set by a resistor (RILIM) from the ILIM pin to RTN. Values from 5.36 kΩ (2.23 A) to 120 kΩ (0.1 A) yield ±5% accuracy at 1 A. The TPS26602RHFT datasheet specifies RILIM = 5.36 kΩ for maximum 2.23-A limit, and includes open/short detection for UL60950 compliance - all verified in Electrical Characteristics Table 7.5.
Does the TPS26602RHFT support thermal shutdown?
Yes. The TPS26602RHFT includes thermal shutdown with a 157°C rising threshold and 10°C hysteresis. Upon exceeding this junction temperature, the device disables the internal FETs and asserts FLT. Recovery occurs after cooling below 147°C, and retry delay is fixed at 512 ms - parameters explicitly listed in Section 7.5 "Electrical Characteristics" and Figure 26.
What package does the TPS26602RHFT use, and how is thermal performance managed?
The TPS26602RHFT uses a 16-pin HTSSOP (PWP) package with an exposed PowerPad. Thermal resistance is specified as RθJA = 38.6°C/W (junction-to-ambient) and RθJB = 18.2°C/W (junction-to-board). Optimal performance requires soldering the PowerPad to the RTN plane using ≥4 thermal vias - a requirement detailed in Section 12 "Layout" and Thermal Information Table 7.4.
TPS26602RHFT 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)
TPS26602RHFT FAQ
1.How can I place an order for TPS26602RHFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26602RHFT 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 TPS26602RHFT reliable?
The price and inventory of TPS26602RHFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26602RHFT is usually 5 days.
3.What payment methods are accepted for TPS26602RHFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26602RHFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26602RHFT?
TPS26602RHFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26602RHFT 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 TPS26602RHFT?
For technical support, including TPS26602RHFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26602RHFT requirements.
6.How does Aetrix verify that TPS26602RHFT is sourced from the original manufacturer or authorized distributors?
All TPS26602RHFT 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 TPS26602RHFT meets industry standards.
7.What is the process for return or replacement of TPS26602RHFT?
All TPS26602RHFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS26602RHFT, 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 TPS26602RHFT part is unused and in its original packaging.
Return procedure for TPS26602RHFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS26602RHFT Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
