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Texas Instruments TPS2592AADRCR
- Part No.:
- TPS2592AADRCR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS2592AADRCR.pdf
- Description:
- IC ELECTRONIC FUSE 15% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,920
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Product details
Overview
TPS2592AADRCR from Texas Instruments is a 4.5–13.8 V input, 28-mΩ integrated eFuse IC with adjustable 2–3.7 A current limit (±15% accuracy), fixed 15-V overvoltage clamp, reverse current blocking support via BFET control, and auto-retry thermal shutdown. It serves as a system-level power protection device in adapter-powered SSDs and auxiliary server supplies.
For engineers reviewing the TPS2592AADRCR datasheet, TPS2592AADRCR pinout, TPS2592AADRCR application, or TPS2592AADRCR equivalent, key selection considerations include its VSON-10 package, programmable dV/dT ramp control, EN/UVLO dual-function pin, ILIM resistor-based current setting, and BFET-driven back-to-back FET configuration for reverse current prevention.
Technical Context
The TPS2592AADRCR integrates a 28-mΩ N-channel pass MOSFET with precision current sensing, fast-trip comparator (160% overload threshold), and internal charge pump gate driver. Its fault response is auto-retry-thermal or overcurrent faults trigger automatic restart after cooldown to TSHDN – 10°C (150°C).
It implements dual-mode EN/UVLO pin functionality: as an enable input (VEN rising threshold = 1.40 V) or as a programmable undervoltage lockout node using external resistor dividers. The dV/dT pin controls output slew rate via external capacitor (1–1000 nF), while BFET drives an external NFET gate to block reverse current flow from load to source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5 V to 13.8 V operating; 20 V absolute max - supports 12-V rail systems with transient margin. |
| RDS(on) | 28 mΩ typical at 25°C - limits conduction loss to ≤336 mW at 3.7 A continuous. |
| ILIMIT | 2 A to 3.7 A adjustable via ILIM resistor (10–100 kΩ); ±15% accuracy ensures predictable trip margins. |
| OVP Clamp | Fixed 15 V - protects downstream 12-V loads from input surges without external components. |
| Thermal Shutdown | 160°C trip with 10°C hysteresis - enables auto-retry recovery without manual reset. |
| Output Slew Rate | Programmable via dV/dT capacitor (0.7–1.3 ms for 11.7 V with 0–1 nF) - prevents inrush-induced bus droop. |
| Reverse Current Blocking | Supported via BFET pin driving external NFET gate - eliminates body-diode conduction during input collapse. |
Pinout & Package
TPS2592AADRCR uses a 3 mm × 3 mm, 10-pin VSON (DRC) package with exposed thermal pad (PowerPAD™) on underside for enhanced heat dissipation. Junction-to-board thermal resistance is 21.2°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| dV/dT (Pin 1) | Output ramp control node | Connects to GND via capacitor to set controlled OUT voltage rise time; internal 220 nA current source charges CdV/dT. |
| EN/UVLO (Pin 2) | Dual-function digital control / analog threshold input | Pull high ≥1.4 V to enable; pull low <1.35 V to disable; also accepts resistor divider for custom UVLO point. |
| VIN (Pins 3–5) | Main power input | High-current input path tied directly to internal FET source; requires low-impedance PCB routing and local decoupling. |
| GND (PowerPAD™) | Reference and thermal plane | Primary ground reference and primary heat transfer path; must be soldered to large copper area per layout guidelines. |
| ILIM (Pin 10) | Current limit programming node | Resistor from ILIM to GND sets ILIMIT; 45.3 kΩ = 2.1 A, 80.6 kΩ = 3.1 A, 100 kΩ = 3.7 A. |
| BFET (Pin 9) | Blocking FET gate driver | Drives external NFET gate to prevent reverse current; active-high during normal operation; pulled low on disable. |
| OUT (Pins 6–8) | Protected output | High-current output connected to internal FET drain; routed separately from VIN to minimize coupling and enable accurate sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 28-mΩ Pass FET | Eliminates need for discrete MOSFET + controller; reduces BOM count and layout area in space-constrained 3×3 mm designs. |
| Fixed 15-V Overvoltage Clamp | Prevents damage to downstream 12-V logic or storage devices during input transients-no external TVS or clamping diodes required. |
| Programmable dV/dT Ramp Control | Enables precise control of output voltage rise time (0.7–13 ms range) to meet SSD or PCIe hot-plug inrush specifications. |
| BFET-Controlled Reverse Current Blocking | Supports true bidirectional isolation in B2B FET configurations-critical for systems where holdup capacitors must not discharge into a failing input bus. |
| Auto-Retry Thermal Fault Response | Allows autonomous recovery after overheating without host intervention-ideal for unattended embedded or server AUX rail applications. |
Applications
| Adapter Powered Devices | HDD and SSD Drives |
|---|---|
|
Use Scenario: 12-V wall adapter powering portable NAS enclosures with multiple SATA SSDs. IC Role / Device Role: Primary power switch and surge protector between adapter output and drive power rails. Use Value: Prevents SSD damage from adapter overvoltage events and blocks reverse current if adapter disconnects mid-operation. |
Use Scenario: Hot-pluggable M.2 SSD module requiring controlled power-up to avoid PCIe link training failure. IC Role / Device Role: Inrush-limited power sequencer with programmable dV/dT and reverse-blocking capability. Use Value: Ensures clean 12-V ramp (<1.3 ms with 1 nF) and prevents backfeed into host when SSD is removed under load. |
| Servers / AUX Supplies | Fan Control Circuits |
|
Use Scenario: Redundant 12-V auxiliary supply feeding baseboard management controllers (BMC) and sensors. IC Role / Device Role: Fault-isolated power distributor with auto-retry thermal protection and current limiting. Use Value: Maintains BMC uptime during localized overloads; recovers automatically without requiring system reset or service call. |
Use Scenario: 12-V fan supply in telecom chassis where fans may stall or short due to dust accumulation. IC Role / Device Role: Short-circuit protected power switch with fast-trip (3 µs) response and thermal foldback. Use Value: Limits fault energy to <100 mJ during stall events, preventing fan driver MOSFET destruction and board charring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2592ALDRCR | Latched (not auto-retry) thermal shutdown; identical pinout, RDS(on), OVP, and ILIM range. | Used where permanent fault lockout is required until manual reset (e.g., safety-critical AUX rails). | Select TPS2592ALDRCR only if system firmware cannot tolerate automatic restarts after thermal events. |
| TPS25942ARVCR | Wider 2.7–24 V input, lower 12.5-mΩ RDS(on), higher 5-A ILIMIT, and integrated current monitor output. | Targets higher-power industrial or networking equipment needing telemetry and extended voltage range. | Choose TPS25942ARVCR when upgrading beyond 3.7 A or requiring analog current reporting-not a drop-in replacement. |
Compared with TPS2592ALDRCR, TPS2592AADRCR offers autonomous recovery from thermal faults; compared with TPS25942ARVCR, it provides tighter footprint and simpler biasing but lacks current monitoring and has narrower voltage range.
Availability
TPS2592AADRCR is available at Aetrix Electronics and suitable for adapter-powered devices, HDD/SSD drives, and server auxiliary supplies requiring stable component supply and long-term industrial availability.
Supply support for TPS2592AADRCR 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, with decades of expertise in high-reliability power protection solutions.
The TPS2592xx family was designed specifically for compact, high-density 12-V system power rails requiring robust overcurrent, overvoltage, and thermal protection-targeting storage, computing, and communications infrastructure.
FAQ
What is the recommended minimum dV/dT capacitor value for TPS2592AADRCR?
The TPS2592AADRCR datasheet specifies a minimum dV/dT capacitor of 1 nF for reliable slew rate control. Using less than 1 nF risks inconsistent ramp behavior due to parasitic capacitance dominance. At 1 nF, the typical output ramp time to 11.7 V is 12 ms; reducing capacitance further increases dV/dT slope unpredictably. Always verify timing with actual load and PCB layout.
Does TPS2592AADRCR support reverse current blocking without an external FET?
No, TPS2592AADRCR does not provide intrinsic reverse current blocking. It requires an external NFET connected back-to-back with its OUT pin, driven by the BFET pin. The BFET output actively pulls the external FET gate high during normal operation and low during disable or fault, enabling true bidirectional isolation. No internal body-diode bypass exists.
What is the maximum continuous output current rating for TPS2592AADRCR at 85°C ambient?
At TA = 85°C, the TPS2592AADRCR supports up to 3.4 A continuous output current when properly heatsinked (using full PowerPAD™ soldering and ≥1 in² 2-oz copper). This assumes VIN = 12 V, RILIM = 100 kΩ, and no additional derating from airflow or enclosure constraints. Derate linearly above 85°C ambient per thermal metrics in datasheet Section 8.4.
How does the EN/UVLO pin function in TPS2592AADRCR when used solely as an enable input?
When used only as an enable input, the EN/UVLO pin of TPS2592AADRCR asserts device enable when voltage rises above 1.40 V (typical) and disables it when falling below 1.35 V (typical), providing 50 mV hysteresis. Pulling it to GND fully disables the internal FET and forces BFET low. No external resistors are needed for basic enable/disable operation-direct GPIO control is sufficient.
Is TPS2592AADRCR compliant with UL 2367, and what does that mean for end-equipment certification?
Yes, TPS2592AADRCR is UL 2367 Recognized (File No. 169910), confirming its suitability as a component-level circuit protection device in end products. This recognition validates its safe failure modes-including single-point fault testing per UL 60950-and allows OEMs to leverage TI's certification data during final system safety approval, reducing test burden and time-to-market.
TPS2592AADRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Electronic Fuse
- Sensing Method:
- -
- Accuracy:
- ±15%
- Voltage - Input:
- 4.5V ~ 13.8V
- Current - Output:
- 3.4A
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS2592AADRCR FAQ
1.How can I place an order for TPS2592AADRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2592AADRCR 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 TPS2592AADRCR reliable?
The price and inventory of TPS2592AADRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2592AADRCR is usually 5 days.
3.What payment methods are accepted for TPS2592AADRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2592AADRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2592AADRCR?
TPS2592AADRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2592AADRCR 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 TPS2592AADRCR?
For technical support, including TPS2592AADRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2592AADRCR requirements.
6.How does Aetrix verify that TPS2592AADRCR is sourced from the original manufacturer or authorized distributors?
All TPS2592AADRCR 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 TPS2592AADRCR meets industry standards.
7.What is the process for return or replacement of TPS2592AADRCR?
All TPS2592AADRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2592AADRCR, 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 TPS2592AADRCR part is unused and in its original packaging.
Return procedure for TPS2592AADRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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