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Texas Instruments TPS26620DRCT
- Part No.:
- TPS26620DRCT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26620DRCT.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:618
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Product details
Overview
TPS26620DRCT from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input reverse polarity protection to –60 V, 478-mΩ total RON, adjustable current limit (25–880 mA, ±5% at 880 mA), and latch-off fault response - used for robust DC bus protection in PLC I/O modules and AC/servo drives.
For engineers reviewing the TPS26620DRCT datasheet, TPS26620DRCT pinout, TPS26620DRCT application, or TPS26620DRCT equivalent, key selection criteria include its ±60-V absolute max rating, fast 0.3-µs reverse current blocking, fixed 38-V overvoltage clamp exclusion (not present in TPS26620), and 10-pin VSON (3 mm × 3 mm) package with PowerPad™ thermal interface.
Technical Context
The TPS26620DRCT integrates back-to-back MOSFETs enabling bidirectional reverse current blocking and input-side reverse polarity protection down to –60 V. Its programmable UVLO (1.2 V threshold), OVP (adjustable cut-off), and dV/dT-controlled slew rate provide system-level surge resilience per IEC 61000-4-5 with minimal external components.
It implements latch-off behavior on overcurrent and overtemperature faults - requiring SHDN pin cycling to reset - and delivers 340 µA operating quiescent current with 12 µA shutdown current. The device operates across –40°C to +125°C and supports output ramp control via external capacitor on dVdT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 4.5 V to 60 V - supports common industrial DC buses including 24 V and 48 V systems |
| Current limit accuracy | ±5% at 880 mA - enables precise power budgeting and avoids overdesign of upstream supplies |
| Total RON | 478 mΩ max at 25°C - limits conduction loss to ≤430 mW at 800 mA, reducing thermal load |
| Fault response | Latch-off - prevents automatic re-engagement after overcurrent/overtemperature, enhancing safety-critical reliability |
| Reverse blocking time | 0.3 µs - isolates downstream circuitry before transient energy propagates during polarity reversal |
| Quiescent current | 340 µA operating / 12 µA shutdown - extends uptime in always-on industrial monitoring nodes |
| Package | 10-pin VSON (3 mm × 3 mm) with exposed PowerPad™ - provides low 3.4°C/W junction-to-board thermal resistance |
Pinout & Package
TPS26620DRCT is housed in a 10-pin VSON (DRCT) package measuring 3.00 mm × 3.00 mm with an exposed PowerPad™ thermally connected to RTN. The PowerPad must be soldered to the PCB ground plane for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | High-voltage supply rail connection (4.5–60 V); withstands –60 V reverse input |
| 2 UVLO | Undervoltage lockout setting | Resistor-programmable threshold (1.2 V typ); opens FET if input drops below set point |
| 3 OVP | Overvoltage protection setting | Resistor-programmable cut-off threshold; connects to RTN if OVP disabled |
| 4 SHDN | Shutdown control | Active-low input; pulling low enters 12-µA shutdown; rising edge resets latched faults |
| 5 RTN | Reference ground | Internal reference node for UVLO, OVP, ILIM, dVdT - separate from system GND |
| 6 GND | System ground | Return path for FLT, SHDN, and external logic; must be tied to RTN externally |
| 7 ILIM | Current limit programming | Resistor-to-RTN sets trip point (25–880 mA); open/short tested per UL 60950 |
| 8 dVdT | Slew rate control | Capacitor-to-RTN sets output ramp time (e.g., 22 nF → 11 ms to 24 V) |
| 9 FLT | Fault indicator | Open-drain active-low flag; asserts during overcurrent, overtemperature, or OVP events |
| 10 OUT | Power output | Switched output rail; blocks reverse current when VIN < VOUT by comparator action |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input reverse polarity protection | Withstands –60 V on IN without external diodes or MOSFETs - eliminates discrete protection components |
| Adjustable current limit with ±5% accuracy | Enables precise overload coordination across multiple rails using single resistor (7.5–267 kΩ) |
| Fast reverse current blocking (0.3 µs) | Prevents holdup-capacitor discharge into faulty upstream sources during brownout or hot-swap events |
| Latch-off fault response | Ensures persistent isolation after overcurrent/overtemperature - requires explicit SHDN reset for controlled recovery |
| IEC 61000-4-5 surge-ready design | Meets Level 3 (1 kV line-earth, 0.5 kV line-line) with only CIN/COUT - no TVS or MOV required |
Applications
| PLC I/O Modules | AC & Servo Drives |
|---|---|
Use Scenario: Protecting 24-V DC field power distribution in modular PLC backplanes against wiring errors and short circuits. IC Role / Device Role / Timing Role: High-side eFuse providing current limiting, reverse polarity blocking, and fault latching between backplane and I/O terminal blocks. Use Value: Eliminates need for fuse replacement and manual reset; maintains system integrity during field maintenance or miswiring. | Use Scenario: Safeguarding control logic power rails in servo amplifier modules subjected to motor regeneration transients. IC Role / Device Role / Timing Role: Input protection IC with 0.3-µs reverse blocking and 220-ns fast-trip response to isolate drive electronics from regenerative energy surges. Use Value: Prevents latch-up or damage during rapid deceleration events without compromising dynamic response. |
| Sensor & Control Systems | PoE High-Side Protection |
Use Scenario: Securing 48-V DC power feeds to distributed industrial sensors exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Industrial-grade eFuse delivering IEC 61000-4-4/4-5 immunity and ±60-V tolerance on sensor supply inputs. Use Value: Reduces field failure rates in harsh environments while maintaining compatibility with existing 48-V PoE infrastructure. | Use Scenario: Adding high-voltage overcurrent and reverse polarity protection to midspan PoE injectors powering IEEE 802.3bt Type 4 devices. IC Role / Device Role / Timing Role: High-side switch with programmable current limit and latch-off behavior to prevent cascading failures in multi-port injectors. Use Value: Enables safe hot-plug operation and protects PSE controller ICs from sustained overload conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26621DRCT | Auto-retry fault response instead of latch-off; identical pinout, RON, and protection features | Suitable where automatic recovery after transient overloads is preferred (e.g., non-safety-critical sensor nodes) | Select TPS26621DRCT only if system architecture permits repeated fault re-engagement without operator intervention |
| TPS26630DRCT | Higher 1.5-A current rating, same 60-V range and latch-off behavior; adds output reverse polarity protection | Required for systems needing bidirectional reverse blocking (e.g., battery-backed holdup circuits) | Choose TPS26630DRCT when output-side reverse polarity risk exists - not supported by TPS26620DRCT |
Compared with TPS26621DRCT, TPS26620DRCT provides deterministic fault isolation via latch-off, critical for safety interlocks; versus TPS26630DRCT, it offers lower cost and smaller footprint where output reverse protection is unnecessary.
Availability
TPS26620DRCT 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 traceable sourcing.
Supply support for TPS26620DRCT 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 connectivity technologies for industrial, automotive, and communications markets.
The TPS2662x product line delivers high-voltage industrial eFuses with integrated protection - designed specifically for ruggedized DC power distribution in factory automation, motion control, and process instrumentation.
FAQ
What is the maximum input voltage rating for the TPS26620DRCT?
The TPS26620DRCT has an absolute maximum input voltage rating of 62 V and a recommended operating range of 4.5 V to 60 V. It also withstands –60 V reverse input voltage, making it suitable for applications with potential wiring reversals or negative transients. This rating is validated per TI's absolute maximum specifications and applies across the full –40°C to +125°C junction temperature range.
Does the TPS26620DRCT support output reverse polarity protection?
No, the TPS26620DRCT does not support output reverse polarity protection. That feature is exclusive to the TPS26624DRCT and TPS26625DRCT variants within the same family. The TPS26620DRCT provides input-side reverse polarity protection only, blocking up to –60 V on the IN pin. Output reverse protection requires selecting a different variant or adding external circuitry.
How is the current limit set on the TPS26620DRCT?
The current limit on the TPS26620DRCT is set by connecting a resistor (RILIM) between the ILIM pin and RTN. With RILIM = 7.5 kΩ, the device limits current to 880 mA (±5% accuracy). Values from 7.5 kΩ to 267 kΩ adjust the limit from 25 mA to 880 mA. The resistor must be placed directly on the PCB with minimal trace length to ensure accuracy and noise immunity.
What fault response behavior does the TPS26620DRCT use?
The TPS26620DRCT uses a latch-off fault response for overcurrent and overtemperature events. Once tripped, the internal FET remains off until the SHDN pin is cycled low-then-high. This behavior ensures persistent isolation and prevents uncontrolled re-engagement - a critical requirement in safety-conscious industrial systems. FLT pin asserts low during the fault and remains low until reset.
Is the TPS26620DRCT certified to safety standards?
Yes, the TPS26620DRCT is UL 2367 recognized (File No. 169910) and IEC 62368-1 certified. These certifications validate its suitability for use in end equipment requiring compliance with international safety standards for information technology and audio/video equipment. Certification covers construction, insulation, and fault-condition behavior under defined test conditions.
TPS26620DRCT 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)
TPS26620DRCT FAQ
1.How can I place an order for TPS26620DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26620DRCT 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 TPS26620DRCT reliable?
The price and inventory of TPS26620DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26620DRCT is usually 5 days.
3.What payment methods are accepted for TPS26620DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26620DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26620DRCT?
TPS26620DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26620DRCT 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 TPS26620DRCT?
For technical support, including TPS26620DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26620DRCT requirements.
6.How does Aetrix verify that TPS26620DRCT is sourced from the original manufacturer or authorized distributors?
All TPS26620DRCT 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 TPS26620DRCT meets industry standards.
7.What is the process for return or replacement of TPS26620DRCT?
All TPS26620DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS26620DRCT, 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 TPS26620DRCT part is unused and in its original packaging.
Return procedure for TPS26620DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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