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Texas Instruments TPS26633RGET
- Part No.:
- TPS26633RGET
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS26633RGET.pdf
- Description:
- IC ELECTRONIC FUSE 2% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:231
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Product details
Overview
TPS26633RGET from Texas Instruments is a 60V, 6A industrial eFuse with integrated 31mΩ hot-swap FET, fixed 35V overvoltage clamp, adjustable 0.6–6A current limit (±7%), analog current monitor (±6%), and 2× pulse overcurrent support. It delivers reverse polarity protection via external N-FET control and fast reverse current blocking (0.17µs) for PLC power path protection.
For engineers reviewing the TPS26633RGET datasheet, TPS26633RGET pinout, TPS26633RGET application, or TPS26633RGET equivalent, key selection criteria include its VQFN-24 package, programmable power limiting (±6%), IEC61000-4-4/4-5 surge immunity, PGOOD output for DC-DC enable control, and MODE-selectable latch-off/auto-retry fault response.
Technical Context
The TPS26633RGET implements dual-stage overcurrent protection: fast-trip comparator (3×IOL) for short circuits (<1µs response) and active 2× pulse current limiting with 20–31ms timeout. Its PLIM pin enables precise output power capping (e.g., 100W at 54V), critical for IEC61010-1 compliance in measurement equipment.
Reverse current blocking uses a dedicated RCB comparator with sub-0.4µs detection delay and DRV-driven pulldown switch, while B_GATE drives an external N-FET gate to block reverse polarity faults. Thermal regulation activates at 136–154°C, with hard 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 handling. |
| RON | 30.44 mΩ typical (25°C); ensures <1.8W conduction loss at 6A, reducing thermal stress in compact designs. |
| Current Limit Range | 0.6A–6A adjustable via ILIM resistor (±7% accuracy); supports scalable load protection across sensor hubs to motor drives. |
| Overvoltage Clamp | Fixed 35V clamp (TPS26633-specific); prevents downstream damage during transients without external components. |
| Power Limit Accuracy | ±6% output power limiting via PLIM pin; enables precise compliance with safety standards like UL1310. |
| Reverse Blocking Speed | 0.17µs response time; halts reverse current before energy transfer damages upstream supplies or batteries. |
| PGOOD Output | Active-high signal indicating stable output voltage; used to sequence downstream DC-DC converters in multi-rail systems. |
Pinout & Package
TPS26633RGET uses a 4.00mm × 4.00mm VQFN-24 package with exposed PowerPad™ for thermal dissipation. Pin 1 is IN (input power), Pin 17/19 are OUT (power output), and Pin 24 is GND-connected PowerPad™ requiring PCB thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Power input | Connects to drain of internal 31mΩ FET; accepts 4.5–60V supply with 67V transient tolerance. |
| B_GATE (Pin 3) | Blocking FET gate driver | Drives external N-FET gate for reverse polarity protection; floats if unused. |
| PLIM (Pin 7) | Power limit programming | Resistor-to-GND sets output power cap (e.g., 100W); required for IEC61010-1 compliance. |
| ILIM (Pin 10) | Current limit programming | Resistor-to-GND configures 0.6–6A trip threshold with ±7% accuracy. |
| MODE (Pin 11) | Fault response selector | Open = latch-off; grounded = auto-retry; determines system recovery behavior after overload. |
| PGOOD (Pin 16) | Power status indicator | Active-high signal confirms regulated output; enables downstream DC-DC converters only when stable. |
| IMON (Pin 13) | Analog current monitor | Sources 27.9 µA/A scaled current; converts to voltage with external resistor for real-time load monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 31mΩ FET | Eliminates external MOSFET, reducing BOM count and layout area in space-constrained PLC modules. |
| IEC61000-4-5 Surge Immunity | Class-A performance at 24V supply enables direct use in factory automation without additional TVS clamping. |
| Adjustable Output Slew Rate | dVdT pin controls inrush current via capacitor; prevents tripping during hot-plug of large capacitive loads. |
| Thermal Regulation | Reduces output current above 136°C to maintain safe junction temperature without full shutdown. |
| UL 2367 Recognition | File E169910 certification simplifies safety approval for industrial equipment meeting UL1310 requirements. |
Applications
| PLC Power Path Protection | Motor Drive Encoder Supply |
|---|---|
Use Scenario: Protecting 24V backplane power feeding multiple I/O modules in a programmable logic controller rack. IC Role / Device Role / Timing Role: Primary eFuse providing overcurrent, overvoltage, and reverse polarity protection for distributed loads. Use Value: Prevents single-point failure propagation; 35V clamp absorbs IEC61000-4-5 surges without external components. | Use Scenario: Supplying clean, regulated 5V/12V to optical encoders in CNC motor drives where EMI and transients are prevalent. IC Role / Device Role / Timing Role: Hot-swap controller with fast reverse current blocking (0.17µs) to isolate encoder faults from main drive bus. Use Value: Eliminates encoder-induced ground loops and protects master controller during cable disconnect events. |
| Electronic Circuit Breaker | Factory Sensor Hub |
Use Scenario: Replacing electromechanical breakers in smart panelboards requiring remote reset and energy monitoring. IC Role / Device Role / Timing Role: Programmable electronic breaker with 2× pulse current support for motor startup inrush tolerance. Use Value: Enables auto-retry on transient overloads while latching on sustained faults; IMON provides real-time load telemetry. | Use Scenario: Powering mixed-voltage sensors (4–20mA, RS-485, IO-Link) in industrial IoT gateways with strict power budgeting. IC Role / Device Role / Timing Role: Power limiter enforcing 100W ceiling via PLIM pin to meet IEC61010-1 Class II isolation requirements. Use Value: Guarantees safe energy delivery during fault conditions; eliminates need for derating or oversized heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26635RGET | 39V fixed overvoltage clamp vs. TPS26633RGET's 35V clamp; identical PLIM, 2× pulse current, and pinout. | Used where higher clamp voltage accommodates wider input variation (e.g., 36V nominal systems). | Select TPS26635RGET when system max input exceeds 35V but must stay below 39V; otherwise TPS26633RGET is optimal for 24V/48V rails. |
| TPS26632RGET | Lacks 2× pulse current support; retains 35V clamp and PLIM functionality. | Suitable for non-motor applications without high inrush, such as static sensor arrays or communication modules. | Choose TPS26632RGET to reduce cost where pulse tolerance is unnecessary; TPS26633RGET adds motor-start capability. |
Compared with TPS26635RGET and TPS26632RGET, the TPS26633RGET uniquely balances 35V clamp precision, 2× pulse current headroom, and full PLIM programmability-making it the preferred choice for 24V/48V industrial systems requiring both surge resilience and motor inrush tolerance.
Availability
TPS26633RGET is available at Aetrix Electronics and suitable for factory automation, motor drive encoder supplies, and electronic circuit breakers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS26633RGET 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 and embedded processing technologies, with decades of expertise in power management ICs for industrial applications.
The TPS2663x family was designed specifically for industrial eFuse applications demanding robust surge immunity, programmable power limiting, and reverse polarity protection-targeting PLCs, motor drives, and safety-critical power distribution systems.
FAQ
What is the overvoltage protection method implemented in the TPS26633RGET?
The TPS26633RGET uses a fixed 35V overvoltage clamp, not adjustable cutoff. When input voltage exceeds 35V, the device limits output voltage to ~32.8V (typical) while maintaining current limiting, preventing downstream damage without shutting off entirely. This differs from TPS26630/31 variants that use adjustable OVP cutoff.
How does the TPS26633RGET achieve reverse polarity protection?
The TPS26633RGET achieves reverse polarity protection by driving an external N-channel FET via its B_GATE pin. When reverse voltage is detected (VIN_SYS – VOUT < –9mV), the RCB comparator triggers DRV to pull down the external FET's gate, blocking reverse current in 0.17µs. The internal FET remains off, isolating the load.
Can the TPS26633RGET be used without an external FET?
Yes, the TPS26633RGET operates fully without an external FET. In this configuration, B_GATE and DRV pins are left floating, and IN_SYS is shorted to IN. Reverse polarity protection is disabled, but all other functions-including 60V/6A power limiting, 35V clamp, and current monitoring-remain active.
What is the purpose of the PLIM pin on the TPS26633RGET?
The PLIM pin on the TPS26633RGET sets output power limiting by connecting a resistor to GND. For example, a 100kΩ resistor configures a 100W limit at 54V input. This feature enforces IEC61010-1 energy limits during faults, ensuring safe operation in measurement and control equipment without external power-sensing circuitry.
How does the MODE pin affect fault handling in the TPS26633RGET?
The MODE pin configures fault response: open circuit selects latch-off (requires SHDN toggle to reset), while grounding selects auto-retry (attempts restart after 550–800ms). This allows designers to match system behavior-latch-off for safety-critical shutdowns, auto-retry for transient overloads like motor startup inverter spikes.
TPS26633RGET 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)
TPS26633RGET FAQ
1.How can I place an order for TPS26633RGET through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26633RGET 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 TPS26633RGET reliable?
The price and inventory of TPS26633RGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26633RGET is usually 5 days.
3.What payment methods are accepted for TPS26633RGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26633RGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26633RGET?
TPS26633RGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26633RGET 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 TPS26633RGET?
For technical support, including TPS26633RGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26633RGET requirements.
6.How does Aetrix verify that TPS26633RGET is sourced from the original manufacturer or authorized distributors?
All TPS26633RGET 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 TPS26633RGET meets industry standards.
7.What is the process for return or replacement of TPS26633RGET?
All TPS26633RGET units undergo pre-shipment inspection (PSI). If there is an issue with TPS26633RGET, 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 TPS26633RGET part is unused and in its original packaging.
Return procedure for TPS26633RGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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