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Texas Instruments TPS26623DRCT
- Part No.:
- TPS26623DRCT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26623DRCT.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,753
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Product details
Overview
TPS26623DRCT from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input reverse polarity protection, fixed 38-V overvoltage clamp, and auto-retry fault response. It features 478-mΩ total RON, ±5% current limit accuracy at 880 mA, and operates from –40°C to +125°C in a 3 mm × 3 mm VSON-10 package. It is used for robust power path protection in PLC I/O modules and AC/servo drives.
For engineers reviewing the TPS26623DRCT datasheet, TPS26623DRCT pinout, TPS26623DRCT application, or TPS26623DRCT equivalent, key selection criteria include its fixed OV clamp (38 V), auto-retry thermal/overcurrent behavior, reverse input polarity tolerance to –60 V, and programmable slew rate via dVdT capacitor - all critical for industrial hot-swap and surge-resilient designs.
Technical Context
The TPS26623DRCT integrates back-to-back MOSFETs to enable bidirectional blocking and fast reverse-current isolation (0.3 µs response). Its fixed 38-V overvoltage clamp protects downstream loads without external components, unlike adjustable OVP variants in the same family.
It implements auto-retry fault recovery for overcurrent and overtemperature events - distinct from latch-off versions (e.g., TPS26622) - and uses resistor-programmable ILIM (7.5 kΩ–267 kΩ) to set current limit from 25 mA to 880 mA with ±5% accuracy at full scale.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 4.5 V to 60 V input range; supports common industrial DC buses including 24 V and 48 V systems. |
| Current Limit Accuracy | ±5% at 880 mA; enables precise power budgeting and reduces input supply overdesign. |
| Total RON | 478 mΩ typical at 25°C; limits conduction loss to ≤340 mW at 800 mA load. |
| Overvoltage Response | Fixed 38-V clamp (not cut-off); clamps transients while maintaining output continuity during overvoltage events. |
| Fault Recovery | Auto-retry mode; automatically re-enables after thermal or overcurrent faults clear, enabling self-healing operation. |
| Reverse Polarity Protection | Input-side only to –60 V; blocks reverse current when IN is negative relative to RTN, protecting upstream source. |
| Quiescent Current | 340 µA operating / 12 µA shutdown; minimizes standby power loss in always-on industrial systems. |
Pinout & Package
TPS26623DRCT is housed in a 10-pin VSON (DRCT) package measuring 3.00 mm × 3.00 mm with exposed PowerPAD™ for thermal dissipation. The package is RoHS-compliant and rated for –40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. IN | Power input | High-voltage input rail connection (4.5–60 V); withstands –60 V reverse polarity. |
| 2. UVLO | Undervoltage lockout setting | Resistor-programmable threshold; opens FET if input drops below configured level (e.g., 1.2 V reference). |
| 3. OVP | Overvoltage clamp enable | Must be tied to RTN to activate fixed 38-V clamp; not used for adjustable OVP. |
| 4. SHDN | Shutdown control | Active-low logic input; pulls low to enter 12-µA shutdown mode and resets latched faults in other variants. |
| 5. RTN | Reference ground | Internal reference node for UVLO, OVP, ILIM, dVdT; separate from system GND (Pin 6). |
| 6. GND | System ground | Return path for FLT, SHDN, and external circuitry; must be connected to PCB ground plane. |
| 7. ILIM | Current limit programming | Resistor to RTN sets overload threshold (25–880 mA); 7.5 kΩ yields 880 mA ±5%. |
| 8. dVdT | Slew rate control | Capacitor to RTN controls output ramp time (e.g., 22 nF → ~11 ms to 24 V); prevents inrush damage. |
| 9. FLT | Fault indicator | Open-drain output asserting low during overcurrent, overtemperature, or OVP events; requires pull-up. |
| 10. OUT | Power output | Switched output to load; isolated from IN during faults; supports holdup during brownouts via back-to-back FETs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reverse input polarity protection | Blocks –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 while sustaining output power - no dropout or latch-off, ideal for continuous-operation systems. |
| Auto-retry fault response | Automatically recovers from overcurrent/thermal faults after cooldown, avoiding manual reset in inaccessible installations. |
| Programmable output slew rate | Adjustable inrush control via dVdT capacitor (e.g., 6.8–22 nF), enabling safe hot-plug into capacitive loads up to 1000 µF. |
| Fast reverse-current blocking | 0.3 µs response to reverse voltage (IN < OUT), preventing backfeed into failed upstream rails during maintenance or failure. |
Applications
| PLC I/O Modules | AC and Servo Drives |
|---|---|
Use Scenario: Protecting 24-V DC input power to analog/digital I/O cards in modular PLC backplanes subject to field wiring faults and ESD. IC Role / Device Role / Timing Role: Primary power path eFuse providing input reverse polarity, overvoltage clamp, and auto-retry overcurrent protection. Use Value: Eliminates need for discrete TVS, series MOSFETs, and resettable fuses - reducing component count by ≥4 parts per channel. | Use Scenario: Securing 48-V auxiliary power rail feeding control logic and gate drivers in servo amplifier modules exposed to motor regeneration spikes. IC Role / Device Role / Timing Role: High-voltage eFuse with 38-V clamp limiting transient energy into sensitive control ICs during IEC 61000-4-5 surges. Use Value: Sustains output during 38–60 V transients instead of cutting off, avoiding drive fault trips and production line stoppages. |
| Sensor and Controls | Thermostat Systems |
Use Scenario: Powering 2-wire loop-powered sensors and smart transmitters in hazardous environments where reverse wiring or lightning-induced surges are common. IC Role / Device Role / Timing Role: Input-protected eFuse delivering regulated 24-V output with reverse polarity immunity and fast short-circuit isolation. Use Value: Survives –60 V miswiring and clears shorts in ≤220 ns, preventing sensor destruction and field replacement costs. | Use Scenario: Managing power to microcontroller, display, and HVAC interface circuits in battery-backed thermostats requiring ultra-low quiescent current. IC Role / Device Role / Timing Role: Low-IQ (12 µA shutdown) eFuse with programmable UVLO ensuring clean startup and brownout resilience. Use Value: Extends battery life >3× vs discrete solutions while maintaining UL 2367 recognition for safety-critical HVAC applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26621DRCT | Same package and pinout; auto-retry but adjustable OVP cut-off (not fixed clamp). | Suitable where programmable overvoltage trip (e.g., 30–55 V) is preferred over fixed 38-V clamping. | Select TPS26621DRCT if system requires configurable OVP threshold and can tolerate output interruption during overvoltage. |
| TPS26622DRCT | Same fixed 38-V clamp and latch-off (not auto-retry) fault response. | Used where permanent shutdown after fault is required for safety interlocks or manual reset protocols. | Choose TPS26622DRCT for fail-safe systems needing guaranteed isolation until operator intervention. |
Compared with TPS26623DRCT, TPS26621DRCT offers flexible OVP but lacks clamping continuity, while TPS26622DRCT provides identical clamping but eliminates autonomous recovery - making TPS26623DRCT optimal for self-healing industrial power paths requiring both robust clamping and automatic fault recovery.
Availability
TPS26623DRCT 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 UL 2367 and IEC 62368-1.
Supply support for TPS26623DRCT 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 ICs for industrial, automotive, and communications markets.
The TPS2662x product line delivers high-voltage eFuses with integrated protection for industrial power distribution - designed specifically to replace discrete fuse/MOSFET/TVS combinations in harsh, high-surge environments like factory automation and motor control.
FAQ
What is the overvoltage protection method implemented in the TPS26623DRCT?
The TPS26623DRCT uses a fixed 38-V overvoltage clamp, not a cut-off mechanism. When input exceeds ~38 V, the device clamps the output voltage to protect downstream circuitry while maintaining continuous power delivery - confirmed in Section 1 Features and Table 5 Device Comparison. This differs from TPS26620/TPS26621 which use adjustable OVP cut-off.
Does the TPS26623DRCT support reverse output polarity protection?
No. The TPS26623DRCT provides reverse input polarity protection to –60 V only. Reverse output polarity protection (i.e., blocking when OUT < IN) is exclusive to TPS26624 and TPS26625 variants, as explicitly stated in the Features section and Device Comparison Table.
What is the current limit adjustment range and accuracy of the TPS26623DRCT?
The TPS26623DRCT supports 25 mA to 880 mA adjustable current limit via an external resistor on the ILIM pin. At 880 mA (RILIM = 7.5 kΩ), the accuracy is ±5%, per Section 1 Features and Electrical Characteristics Table 7.5. Accuracy degrades slightly at lower currents but remains within ±10% down to 25 mA.
How does the fault response behavior of the TPS26623DRCT differ from TPS26622DRCT?
The TPS26623DRCT uses auto-retry fault recovery for overcurrent and overtemperature events, automatically re-enabling after fault clearance. In contrast, TPS26622DRCT uses latch-off behavior - it remains disabled until manually reset via SHDN pin cycling, as defined in the Device Comparison Table and Functional Description sections.
What package type and thermal characteristics apply to the TPS26623DRCT?
The TPS26623DRCT uses a 10-pin VSON (DRCT) package, 3.00 mm × 3.00 mm, with exposed PowerPAD™. Its junction-to-ambient thermal resistance (RθJA) is 44.8°C/W, and junction-to-board (RθJB) is 20.7°C/W - values confirmed in Section 7.4 Thermal Information and applicable across the TPS2662x family.
TPS26623DRCT 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)
TPS26623DRCT FAQ
1.How can I place an order for TPS26623DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26623DRCT 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 TPS26623DRCT reliable?
The price and inventory of TPS26623DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26623DRCT is usually 5 days.
3.What payment methods are accepted for TPS26623DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26623DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26623DRCT?
TPS26623DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26623DRCT 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 TPS26623DRCT?
For technical support, including TPS26623DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26623DRCT requirements.
6.How does Aetrix verify that TPS26623DRCT is sourced from the original manufacturer or authorized distributors?
All TPS26623DRCT 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 TPS26623DRCT meets industry standards.
7.What is the process for return or replacement of TPS26623DRCT?
All TPS26623DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS26623DRCT, 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 TPS26623DRCT part is unused and in its original packaging.
Return procedure for TPS26623DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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