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Texas Instruments TPS26631RGER
- Part No.:
- TPS26631RGER
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS26631RGER.pdf
- Description:
- IC ELECTRONIC FUSE 2% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
TPS26631RGER from Texas Instruments is a 60V, 6A industrial eFuse with integrated 31mΩ hot-swap FET, adjustable current limit (0.6–6A ±7%), fast reverse current blocking (0.17µs), and IEC61000-4-4/4-5 surge immunity. It delivers power path protection in PLC I/O modules and motor drive encoder supplies.
For engineers reviewing the TPS26631RGER datasheet, TPS26631RGER pinout, TPS26631RGER application, or TPS26631RGER equivalent, key selection criteria include its 2× pulse overcurrent support, programmable OVP cutoff, B-FET driver for reverse polarity protection, and RGE (VQFN-24) package with PowerPad thermal interface.
Technical Context
The TPS26631RGER implements dual-stage overcurrent response: fast-trip comparator (3× current limit) for short circuits and active 2× pulse limiting for transient surges. Its B_GATE/DRV pins drive an external N-channel FET to enforce reverse current blocking below –15mV differential, with sub-microsecond detection latency.
It integrates analog IMON output (±6% gain accuracy) and PGOOD with deglitch timing (1.07–1.6ms rise), while UVLO/OVP thresholds are set via external resistors referenced to internal 1.2V comparators. Thermal regulation activates at 145°C, with shutdown at 165°C and 11°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 4.5V to 60V input range supports 24V/48V industrial rails; 67V absolute max withstand enables robust surge margin. |
| RON | 30.44 mΩ typical (25°C); ensures <180mW conduction loss at 6A, reducing thermal stress in compact layouts. |
| Current Limit Range | 0.6A–6A adjustable via ILIM resistor (3kΩ–30kΩ); ±7% tolerance enables precise load protection calibration. |
| Pulse Overcurrent Support | 2× sustained overload capability (e.g., 12A for 25ms) allows safe handling of motor startup inrush without latch-off. |
| Reverse Blocking Speed | 0.17µs detection delay prevents backfeed during input disconnection-critical for redundant power systems. |
| Surge Immunity | IEC61000-4-5 Level 4 compliant (4kV line-earth); maintains Class-A system performance during 24V supply surge tests. |
| Thermal Shutdown | 165°C trip with 11°C hysteresis prevents permanent damage; thermal regulation begins at 145°C to sustain operation under overload. |
Pinout & Package
RGE package: 24-pin VQFN (4.0mm × 4.0mm) with exposed PowerPad for enhanced thermal dissipation. Pin 1 marked; PowerPad must be soldered to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power input | Connects to drain of internal 31mΩ FET; accepts 4.5–60V supply with 67V transient rating. |
| B_GATE | Blocking FET gate driver | Drives external N-FET gate for reverse polarity protection; clamped at 10.23V above IN_SYS. |
| IN_SYS | Device supply & reference | Provides bias for internal circuitry; tied to source of external blocking FET when used. |
| UVLO / OVP | Programmable threshold inputs | Resistor-divider sets undervoltage (15.46V typ) or overvoltage cutoff (34.33V typ); grounded for default thresholds. |
| ILIM | Current limit programming | Resistor to GND sets 0.6–6A limit; 3kΩ yields 6A ±7%, enabling precise fault current calibration. |
| MODE | Fault response selector | Open = latch-off; grounded = auto-retry-configures behavior after 2× pulse overcurrent event. |
| PGOOD | Power status indicator | Active-high open-drain output signals valid output voltage (≥1.2V on PGTH); 1.3ms deglitch prevents false toggling. |
| IMON | Analog current monitor | Sources 27.9 µA/A (±6%) proportional to load current; resistor-to-GND converts to voltage for ADC monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 31mΩ FET | Eliminates need for discrete hot-swap MOSFET and driver, reducing BOM count and layout area by >30%. |
| Fast reverse current blocking | 0.17µs response prevents backfeed in dual-supply or battery-backup systems during input failure. |
| Adjustable output slew rate | dVdT pin controls inrush via external capacitor; 22nF yields 8.35ms ramp, preventing tripping during capacitive load charging. |
| IEC61000-4-5 surge compliance | Class-A performance at 24V supply enables direct use in industrial fieldbus nodes without external TVS staging. |
| UL 2367 recognition | File E169910 certifies safety for industrial equipment; RILIM ≥3kΩ required for compliance. |
Applications
| PLC I/O Module Protection | Motor Drive Encoder Supply |
|---|---|
Use Scenario: Protecting 24V DC inputs in programmable logic controller digital input cards against wiring faults and field surges. IC Role / Device Role / Timing Role: eFuse providing primary overcurrent, reverse polarity, and surge protection upstream of signal conditioning circuitry. Use Value: Enables Class-A IEC61000-4-5 compliance without external TVS arrays; 2× pulse limit accommodates solenoid coil inrush. | Use Scenario: Powering optical encoders in CNC motor drives where supply interruption causes position loss. IC Role / Device Role / Timing Role: Hot-swap controller with fast reverse blocking (0.17µs) to prevent backfeed from encoder side during main rail dropout. Use Value: Maintains encoder bias during brief input interruptions; PGOOD enables graceful firmware shutdown before position error occurs. |
| Electronic Circuit Breaker | Factory Automation Sensor Hub |
Use Scenario: Replacing electromechanical breakers in modular industrial power distribution units. IC Role / Device Role / Timing Role: Solid-state fuse with programmable 0.6–6A limit and auto-retry/latch-off modes for configurable fault recovery. Use Value: Eliminates contact wear and bounce; 2× pulse support allows temporary overloads (e.g., conveyor start) without nuisance tripping. | Use Scenario: Consolidating power for multiple 4–20mA sensors in distributed I/O cabinets with shared 24V rail. IC Role / Device Role / Timing Role: Current-limited power switch with IMON feedback for real-time load monitoring and predictive maintenance. Use Value: Analog IMON output (±6% accuracy) enables precise current trending to detect sensor degradation before failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26630RGER | No 2× pulse overcurrent support; single-stage current limiting only. | Lacks transient surge headroom for motor inrush or solenoid loads. | Select when only steady-state overload protection is required and cost sensitivity outweighs pulse margin. |
| TPS26633RGER | Includes fixed 35V overvoltage clamp (vs. adjustable OVP cutoff in TPS26631RGER). | Better suited for systems requiring hard clamp during overvoltage transients (e.g., lightning-induced spikes). | Choose when OVP clamp behavior is preferred over cutoff, and 35V clamping aligns with downstream device ratings. |
Compared with TPS26630RGER and TPS26633RGER, the TPS26631RGER uniquely combines adjustable OVP cutoff with 2× pulse overcurrent support-making it optimal for industrial systems needing both precise voltage threshold control and robust transient handling without latch-off.
Availability
TPS26631RGER is available at Aetrix Electronics and suitable for factory automation, motor drives, and electronic circuit breaker designs requiring stable component supply, long-term industrial lifecycle support, and IEC-compliant surge resilience.
Supply support for TPS26631RGER 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 for industrial, automotive, and communications markets.
The TPS2663x family was designed specifically for industrial power path protection-integrating surge-hardened eFuse functionality, reverse polarity blocking, and programmable limits into a single package for PLCs, motor drives, and sensor hubs.
FAQ
What is the maximum continuous current rating of the TPS26631RGER?
The TPS26631RGER supports up to 6A continuous output current with RON = 30.44 mΩ (typical at 25°C). At full load and 85°C ambient, RON rises to 45 mΩ, resulting in ~1.6W conduction loss-requiring adequate PCB copper area and thermal vias under the PowerPad for reliable operation.
How does the TPS26631RGER handle reverse polarity events?
The TPS26631RGER uses its B_GATE and DRV pins to drive an external N-channel FET for reverse polarity protection. When V(IN_SYS) – V(OUT) falls below –15mV, the reverse protection comparator triggers within 0.17µs, pulling DRV high to turn off the external pulldown switch and block reverse current flow.
Can the TPS26631RGER be used without an external blocking FET?
Yes-the TPS26631RGER operates fully functional without an external blocking FET. In that configuration, connect IN_SYS directly to IN, leave B_GATE and DRV floating, and rely on the internal FET for forward power path control and basic overcurrent/surge protection.
What is the purpose of the MODE pin on the TPS26631RGER?
The MODE pin configures fault response: open circuit selects latch-off mode (requires SHDN toggle to reset), while grounding selects auto-retry mode (550–800ms delay before re-enabling after 2× pulse overcurrent). This enables flexible system-level fault recovery strategies without firmware intervention.
Does the TPS26631RGER support output power limiting (PLIM)?
No-TPS26631RGER does not support output power limiting. PLIM functionality is exclusive to TPS26632/33/35/36/37 variants. The TPS26631RGER provides only adjustable current limiting (0.6–6A) and programmable OVP cutoff, not power-based regulation.
TPS26631RGER 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:
- ±2%
- Voltage - Input:
- 4.5V ~ 60V
- Current - Output:
- 6A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
TPS26631RGER FAQ
1.How can I place an order for TPS26631RGER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26631RGER 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 TPS26631RGER reliable?
The price and inventory of TPS26631RGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26631RGER is usually 5 days.
3.What payment methods are accepted for TPS26631RGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26631RGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26631RGER?
TPS26631RGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26631RGER 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 TPS26631RGER?
For technical support, including TPS26631RGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26631RGER requirements.
6.How does Aetrix verify that TPS26631RGER is sourced from the original manufacturer or authorized distributors?
All TPS26631RGER 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 TPS26631RGER meets industry standards.
7.What is the process for return or replacement of TPS26631RGER?
All TPS26631RGER units undergo pre-shipment inspection (PSI). If there is an issue with TPS26631RGER, 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 TPS26631RGER part is unused and in its original packaging.
Return procedure for TPS26631RGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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