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Texas Instruments TPS2592BADRCR
- Part No.:
- TPS2592BADRCR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS2592BADRCR.pdf
- Description:
- IC ELECTRONIC FUSE 15% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,206
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Product details
Overview
TPS2592BADRCR from Texas Instruments is a 5-V eFuse IC with integrated 28-mΩ pass MOSFET, fixed 6.1-V overvoltage clamp, ±15% adjustable current limit (2–5 A), reverse current blocking support via BFET pin, and auto-retry thermal shutdown. It protects SSDs, server AUX supplies, and PCIe cards against overcurrent, short circuit, inrush surge, and input voltage transients.
For engineers reviewing the TPS2592BADRCR datasheet, TPS2592BADRCR pinout, TPS2592BADRCR application, or TPS2592BADRCR equivalent, this page delivers verified functional modes, validated dV/dT ramp control behavior, confirmed BFET gate-drive timing, exact ILIM resistor-to-current mapping, and real-world thermal foldback characteristics under overload conditions.
Technical Context
The TPS2592BADRCR implements a hot-swap controller with integrated power switch, featuring dual-stage current limiting: a precision current-limit amplifier for sustained overload (IOL) and a fast-trip comparator (IFASTRIP = 1.6 × IOL) responding in 3 µs to transient shorts. Its UVLO threshold is 4.3 V (±0.15 V), and overvoltage clamping activates at 6.1 V (±0.65 V) without external components.
Startup output slew rate is programmable via a capacitor on the dV/dT pin (220 nA charging current, 70 pF internal capacitance, 4.85× gain), enabling controlled ramping for holdup-capacitor-sensitive systems. The BFET pin drives an external back-to-back NFET with 2 µA sourcing capability and <1 µs turn-off via a 26-Ω internal discharge path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5 V to 5.5 V recommended; absolute max 20 V - supports 5-V rail with robust transient tolerance |
| RDS(on) | 28 mΩ typical at 25°C - enables low-loss power delivery up to 5 A with ≤140 mV dropout |
| Overvoltage Clamp | Fixed 6.1 V (±0.65 V) - prevents downstream damage during input surges without external TVS |
| Current Limit Accuracy | ±15% over temperature - ensures predictable fault response across –40°C to +125°C junction range |
| Thermal Shutdown | 160°C trip with 10°C hysteresis - auto-retry behavior allows recovery after cooling without manual reset |
| BFET Turn-Off Delay | 0.4 µs (CBFET = 1 nF) - enables rapid reverse-current blocking critical in SSD holdup scenarios |
| dV/dT Ramp Control | Programmable 0.28–0.52 ms ramp time (CdVdT = 0–1 nF) - meets strict inrush requirements for capacitive loads |
Pinout & Package
TPS2592BADRCR uses a 10-pin VSON (DRC) package, 3.00 mm × 3.00 mm, with exposed PowerPAD™ thermal pad for enhanced heat dissipation (RθJA = 45.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| dV/dT (Pin 1) | Output voltage ramp control input | Connects to GND via capacitor to set precise startup slew rate; floating defaults to minimum ramp time |
| EN/UVLO (Pin 2) | Enable and undervoltage lockout input | High (>1.4 V) enables device and BFET; low (<1.35 V) disables pass FET and discharges BFET gate |
| VIN (Pins 3–5) | Main input supply connection | Accepts 4.5–5.5 V nominal; handles 20 V absolute max; requires local 0.1-µF ceramic bypass |
| ILIM (Pin 10) | Current limit programming node | Resistor to GND sets IOL: 10–100 kΩ yields 2–5 A (±15%) - open/short detect thresholds at 3.1 V / 0 V |
| BFET (Pin 9) | Blocking FET gate driver output | Sources 2 µA to charge external NFET gate; sinks via 26-Ω path for <1 µs turn-off - prevents reverse current |
| OUT (Pins 6–8) | Pass FET output terminal | Delivers regulated 5-V output; connects to load and optional COUT (1–1000 µF); monitored for OVP and current sense |
| GND (PowerPAD™) | Ground reference and thermal path | Primary return path for all currents; exposed pad must be soldered to PCB thermal plane for RθJB = 21.2°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 28-mΩ Pass MOSFET | Eliminates discrete FET and driver, reducing BOM count and layout area while maintaining <150 mV dropout at 5 A |
| Fixed 6.1-V Overvoltage Clamp | Hardware-enforced output voltage ceiling prevents downstream IC damage during input transients - no external components needed |
| Programmable dV/dT Ramp Control | Single capacitor sets output rise time (0.28–0.52 ms), satisfying inrush limits for high-capacitance SSD and server loads |
| Reverse Current Blocking Support | BFET pin drives external back-to-back NFET to block energy dump from load to failing input bus - essential for UL60950 compliance |
| Auto-Retry Thermal Shutdown | Re-attempts power delivery after cooling below 150°C, enabling autonomous recovery in thermally constrained enclosures |
| UL 2367 Recognition | File No. 169910 confirms safety compliance for end-equipment certification - reduces qualification effort for industrial/AUX designs |
Applications
| Adapter Powered Devices | HDD and SSD Drives |
|---|---|
Use Scenario: 5-V wall adapter powering embedded system with large bulk capacitance. IC Role / Device Role / Timing Role: eFuse managing inrush current and preventing adapter brownout during cold start. Use Value: Programmable dV/dT ramp avoids tripping adapter current limit; 28-mΩ RDS(on) minimizes voltage drop across full load range. |
Use Scenario: SSD backplane where holdup capacitance must not discharge into a drooping or shorted input bus. IC Role / Device Role / Timing Role: Reverse-current blocking controller using BFET-driven external NFET. Use Value: <1 µs BFET turn-off prevents energy dump from SSD capacitors, meeting UL60950 single-point-failure requirements. |
| Servers / AUX Supplies | PCI/PCIe Cards |
Use Scenario: 5-V auxiliary rail in server motherboard supplying fan controllers and management ICs. IC Role / Device Role / Timing Role: Fault-tolerant power switch with overvoltage and overcurrent protection. Use Value: Fixed 6.1-V OVP clamps transients from shared bus; auto-retry thermal shutdown maintains uptime during intermittent overloads. |
Use Scenario: Hot-pluggable PCIe add-in card requiring safe insertion and removal without disrupting host bus. IC Role / Device Role / Timing Role: Hot-swap controller enforcing controlled power-up and fault isolation. Use Value: EN/UVLO pin enables sequenced enable/disable; fast-trip comparator (3 µs) limits short-circuit energy during misinsertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2592BLDRCR | Latched fault response (not auto-retry); identical pinout, RDS(on), OVP, and ILIM range | Suitable for systems requiring hard shutdown until manual reset after thermal or overcurrent fault | Select when deterministic fault containment is prioritized over autonomous recovery |
| TPS25940ARVCR | Higher VIN range (2.7–24 V), 1.2-mA quiescent current, integrated telemetry (V/I monitoring), 12-bit ADC | Supports wide-input industrial rails and provides digital health reporting via I²C | Choose when design requires input voltage flexibility, telemetry, or programmable fault responses beyond TPS2592BA capabilities |
Compared with TPS2592BADRCR, TPS2592BLDRCR offers identical protection specs but latched shutdown instead of auto-retry, while TPS25940ARVCR adds wide VIN, telemetry, and I²C interface at higher complexity and cost - making TPS2592BADRCR optimal for cost-sensitive, fixed-rail 5-V systems needing autonomous thermal recovery.
Availability
TPS2592BADRCR is available at Aetrix Electronics and suitable for adapter-powered devices, HDD/SSD drives, and server AUX supplies requiring stable component supply with long-term lifecycle assurance.
Supply support for TPS2592BADRCR 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and power efficiency.
The TPS2592Bx product line targets high-density power management in space-constrained systems such as storage, computing, and communications equipment, focusing on integrated protection with minimal external components.
FAQ
What is the recommended operating voltage range for the TPS2592BADRCR?
The TPS2592BADRCR is specified for 4.5 V to 5.5 V input operation. While it withstands up to 20 V continuously, operation above 5.5 V triggers overvoltage protection, clamping the output to 6.1 V and increasing power dissipation. For reliable 5-V rail management, maintain VIN within the recommended range to avoid thermal stress and ensure accurate current limiting in TPS2592BADRCR.
How does the BFET pin function in the TPS2592BADRCR?
The BFET pin in TPS2592BADRCR drives the gate of an external NFET configured back-to-back with the internal pass FET to block reverse current flow from load to source. It sources 2 µA to charge the gate and discharges it through a 26-Ω internal path for <1 µs turn-off. This functionality is critical in SSD and server applications where holdup capacitance must not discharge into a failing input bus - a key requirement validated in TPS2592BADRCR's UL60950 testing.
What determines the current limit accuracy of the TPS2592BADRCR?
The TPS2592BADRCR current limit accuracy is ±15% over temperature (–40°C to +125°C) and process variation, primarily governed by the tolerance and temperature coefficient of the external ILIM resistor. The device's internal bias current (10 µA) and gain architecture ensure consistent scaling: for example, a 100-kΩ ±1% resistor yields 3.75 A ±15%. This specification is explicitly confirmed in the Electrical Characteristics table of the TPS2592BADRCR datasheet under "Overload current limit" test conditions.
Does the TPS2592BADRCR support programmable output voltage ramp rate?
Yes, the TPS2592BADRCR supports precise output voltage ramp control via the dV/dT pin. Connecting a capacitor (1–1000 pF) from dV/dT to GND sets the ramp time between 0.28 ms and 0.52 ms for a 5-V step. This behavior is derived from a 220-nA charging current, 70-pF internal capacitance, and 4.85× gain - parameters fully characterized and published in the TPS2592BADRCR datasheet's Electrical Characteristics and Feature Description sections.
What is the thermal shutdown behavior of the TPS2592BADRCR?
The TPS2592BADRCR features auto-retry thermal shutdown with a 160°C trip threshold and 10°C hysteresis. When junction temperature exceeds 160°C, the internal MOSFET turns off; after cooling below 150°C, the device automatically attempts restart. This cycle repeats until the thermal fault is resolved. This behavior is explicitly differentiated from the latched TPS2592BL variant and is confirmed in the Device Functional Modes section of the TPS2592BADRCR datasheet.
TPS2592BADRCR 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 ~ 5.5V
- Current - Output:
- 5A
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS2592BADRCR FAQ
1.How can I place an order for TPS2592BADRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2592BADRCR 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 TPS2592BADRCR reliable?
The price and inventory of TPS2592BADRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2592BADRCR is usually 5 days.
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TPS2592BADRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2592BADRCR 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 TPS2592BADRCR?
For technical support, including TPS2592BADRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2592BADRCR requirements.
6.How does Aetrix verify that TPS2592BADRCR is sourced from the original manufacturer or authorized distributors?
All TPS2592BADRCR 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 TPS2592BADRCR meets industry standards.
7.What is the process for return or replacement of TPS2592BADRCR?
All TPS2592BADRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2592BADRCR, 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 TPS2592BADRCR part is unused and in its original packaging.
Return procedure for TPS2592BADRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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