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Texas Instruments TPS26622DRCT
- Part No.:
- TPS26622DRCT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26622DRCT.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,754
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Product details
Overview
TPS26622DRCT from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input reverse polarity protection, fixed 38-V overvoltage clamp, latch-off fault response, and 478-mΩ total RON. It operates from 4.5 V to 60 V, delivers ±5% current limit accuracy at 880 mA, and blocks reverse current in 0.3 µs-enabling robust power path protection in PLC I/O modules and AC/servo drives.
For engineers reviewing the TPS26622DRCT datasheet, TPS26622DRCT pinout, TPS26622DRCT application, or TPS26622DRCT equivalent, this page provides verified specifications, validated pin functions, confirmed industrial use cases (PLC I/O, sensor controls, PoE high-side), and two technically documented alternative parts with explicit functional and application-level differences.
Technical Context
The TPS26622DRCT integrates back-to-back MOSFETs for bidirectional blocking and uses internal comparator-based control for fast reverse-current shutdown (0.3 µs) and precise overcurrent limiting (±5% at 880 mA). Its fixed 38-V overvoltage clamp operates without external components, while UVLO, dV/dt slew rate control, and programmable ILIM provide system-level adaptability.
Unlike TPS26624/TPS26625, it supports only input-side reverse polarity protection-not output-side-and latches off during overcurrent or overtemperature faults instead of auto-retrying. Its 10-pin VSON (3 mm × 3 mm) package includes PowerPad™ for thermal management up to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 4.5 V to 60 V - supports common industrial DC bus voltages including 24 V and 48 V systems |
| Current Limit Accuracy | ±5% at 880 mA - enables precise input supply sizing and reduces overdesign margin |
| Total RON | 478 mΩ max at 25°C - limits conduction loss to ≤420 mW at 800 mA load |
| Overvoltage Response | Fixed 38-V clamp - clamps transients without external components or configuration resistors |
| Fault Behavior | Latch-off - holds OFF until SHDN pin is cycled; prevents uncontrolled re-engagement after fault |
| Reverse Current Blocking | 0.3 µs response time - isolates load within one microsecond during input polarity reversal |
| Quiescent Current | 340 µA operating / 12 µA shutdown - minimizes standby power in always-on industrial nodes |
Pinout & Package
TPS26622DRCT is housed in a 10-pin VSON (DRCT) package with 3.00 mm × 3.00 mm body size and exposed PowerPad™ thermally connected to RTN. The package supports –40°C to +125°C operation and UL 2367 recognition (File No. 169910).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | Accepts 4.5–60 V supply; withstands –60 V reverse input without damage |
| 2 UVLO | Undervoltage lockout setting | Resistor-programmable threshold; opens FET if input drops below configured level |
| 3 OVP | Overvoltage clamp enable | Must be tied to RTN to activate fixed 38-V clamp (TPS26622-specific behavior) |
| 4 SHDN | Shutdown control | Pull low to enter 12-µA shutdown; cycle low→high to reset latched fault |
| 5 RTN | Reference ground | System reference for all internal comparators and bias circuits |
| 6 GND | System ground | Separate from RTN; connects to PCB ground plane |
| 7 ILIM | Current limit programming | Resistor to RTN sets overload threshold from 25 mA to 880 mA (±5% at top end) |
| 8 dVdT | Slew rate control | Capacitor to RTN sets output ramp time to limit inrush current during hot-plug |
| 9 FLT | Fault indicator | Open-drain active-low flag signaling UVLO, OVP, overcurrent, or thermal shutdown |
| 10 OUT | Power output | Delivers regulated, protected output to downstream load; leakage <12 µA in OFF state |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input reverse polarity protection | Withstands –60 V on IN pin without external diodes or MOSFETs, eliminating BOM cost and board space |
| Fixed 38-V overvoltage clamp | Clamps transients above 38 V without resistor programming or external TVS, simplifying surge compliance (IEC 61000-4-5) |
| Latch-off fault response | Prevents automatic re-engagement after overcurrent or overtemperature events-critical for safety-critical industrial resets |
| Fast reverse current blocking (0.3 µs) | Isolates load before reverse energy propagates, protecting hold-up capacitors and downstream circuitry during brownout |
| Low quiescent current (340 µA) | Enables always-on monitoring in battery-backed or energy-constrained industrial nodes without significant standby drain |
Applications
| PLC I/O Modules | AC and Servo Drives |
|---|---|
Use Scenario: Protecting 24-V DC input channels against field wiring errors, ESD, and load dump transients in modular PLC backplanes. IC Role / Device Role / Timing Role: Primary power path protector and fault isolator between field-side terminals and internal logic rails. Use Value: Eliminates need for discrete TVS, reverse-blocking diodes, and current-sense amplifiers-reducing component count by ≥4 per channel. | Use Scenario: Securing auxiliary 24-V control power supplies feeding gate drivers and position feedback circuits in motor drive inverters. IC Role / Device Role / Timing Role: High-voltage eFuse providing inrush limiting, short-circuit isolation, and reverse polarity immunity during maintenance hot-swap. Use Value: Prevents catastrophic failure from miswired 24-V inputs or regenerative energy backfeed during drive shutdown. |
| Sensor and Controls | PoE High-Side Protection |
Use Scenario: Powering industrial 4–20 mA loop-powered sensors and digital IO nodes in hazardous environments with long cable runs. IC Role / Device Role / Timing Role: Input-stage protector with ±60-V tolerance and fast reverse-current blocking to handle induced surges and polarity reversals. Use Value: Maintains sensor uptime during lightning-induced transients (IEC 61000-4-5 Level 3) without requiring external surge suppressors. | Use Scenario: Adding secondary overvoltage and reverse-polarity protection upstream of IEEE 802.3bt Type 4 (90 W) PoE PD interfaces. IC Role / Device Role / Timing Role: High-side eFuse ensuring PoE switch port compliance with UL 2367 and IEC 62368-1 when powered from non-PoE sources. Use Value: Enables safe dual-source operation (PoE + local 24 V) while preventing backfeed into PoE controller during local supply faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26623DRCT | Same package and pinout; auto-retry fault response instead of latch-off; identical 38-V clamp and input reverse polarity protection | Suitable where automatic recovery after transient overloads is acceptable (e.g., non-safety-critical sensor nodes) | Select TPS26623DRCT only if system design permits repeated fault cycling without manual intervention |
| TPS26620DRCT | Same package and pinout; adjustable overvoltage cut-off (not fixed clamp); latch-off response; input-only reverse polarity protection | Preferred when programmable OVP threshold is required (e.g., 48-V bus with custom clamp voltage) | Choose TPS26620DRCT when OVP must be set above 38 V or tuned to match specific rail tolerances |
Compared with TPS26622DRCT, TPS26623DRCT offers automatic fault recovery but sacrifices deterministic shutdown control, while TPS26620DRCT trades fixed-clamp simplicity for OVP configurability-neither matches the exact combination of 38-V clamp + latch-off + input-only reverse protection found in TPS26622DRCT.
Availability
TPS26622DRCT is available at Aetrix Electronics and suitable for PLC I/O modules, AC/servo drives, and sensor/control systems requiring stable component supply across extended industrial lifecycles.
Supply support for TPS26622DRCT 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 company specializing in analog, embedded processing, and high-reliability power management solutions for industrial, automotive, and communications markets.
The TPS2662x product line was designed specifically for industrial power path protection-integrating high-voltage eFuse functionality, reverse polarity immunity, and surge-ready clamping into compact VSON packages for harsh-environment control systems.
FAQ
What is the overvoltage protection mechanism of the TPS26622DRCT?
The TPS26622DRCT implements a fixed 38-V overvoltage clamp. When input voltage exceeds ~38 V, the device internally shunts excess current to limit output voltage-no external resistor or configuration is needed. This differs from adjustable OVP variants like TPS26620DRCT and avoids reliance on external TVS diodes for basic surge suppression per IEC 61000-4-5.
Does the TPS26622DRCT support output reverse polarity protection?
No, the TPS26622DRCT supports input reverse polarity protection only (to –60 V), not output reverse polarity protection. Output-side reverse protection is exclusive to TPS26624DRCT and TPS26625DRCT. For TPS26622DRCT, reverse voltage applied to the OUT pin is not blocked-system design must ensure no negative output conditions occur.
How does the fault response of TPS26622DRCT differ from TPS26621DRCT?
The TPS26622DRCT uses latch-off fault response: once tripped by overcurrent or overtemperature, it remains OFF until the SHDN pin is actively cycled low then high. In contrast, TPS26621DRCT employs auto-retry, automatically attempting re-engagement after a timeout. This makes TPS26622DRCT appropriate for safety-critical applications where unattended restart is prohibited.
What is the minimum external capacitance required on the IN and OUT pins of TPS26622DRCT?
The TPS26622DRCT requires a minimum of 0.01 µF external capacitance on both IN and OUT pins per the Recommended Operating Conditions table. This ensures stability under transient load changes and meets ESD immunity requirements per IEC 61000-4-4. Larger values (e.g., 1 µF) are typical in production designs to improve surge handling.
Can the TPS26622DRCT be used in systems with 48-V nominal input?
Yes, the TPS26622DRCT supports 4.5–60-V operation, making it fully compatible with 48-V nominal industrial buses. Its 62-V absolute maximum rating and 38-V fixed clamp provide headroom for transients and ripple. At 48 V, conduction loss remains low (≤420 mW at 800 mA) due to its 478-mΩ RON, and thermal performance is validated to +125°C junction temperature.
TPS26622DRCT 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)
TPS26622DRCT FAQ
1.How can I place an order for TPS26622DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26622DRCT 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 TPS26622DRCT reliable?
The price and inventory of TPS26622DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26622DRCT is usually 5 days.
3.What payment methods are accepted for TPS26622DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26622DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26622DRCT?
TPS26622DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26622DRCT 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 TPS26622DRCT?
For technical support, including TPS26622DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26622DRCT requirements.
6.How does Aetrix verify that TPS26622DRCT is sourced from the original manufacturer or authorized distributors?
All TPS26622DRCT 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 TPS26622DRCT meets industry standards.
7.What is the process for return or replacement of TPS26622DRCT?
All TPS26622DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS26622DRCT, 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 TPS26622DRCT part is unused and in its original packaging.
Return procedure for TPS26622DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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