My Inquiry
My Account
Texas Instruments TPS25972ARPWR
- Part No.:
- TPS25972ARPWR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFQFN
- Datasheet:
-
TPS25972ARPWR.pdf
- Description:
- IC ELECTRONIC FUSE 10% 10VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,233
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS25972ARPWR from Texas Instruments is a 2.7V–23V, 7A, 9.8mΩ eFuse IC with pin-selectable overvoltage clamp (3.89V/5.76V/13.88V), ±8% load current monitor accuracy, and 550ns short-circuit response time. It serves as a high-precision power-path protection device in server motherboard rail management, enterprise storage power distribution, and medical patient monitor front-end supplies.
For engineers reviewing the TPS25972ARPWR datasheet, TPS25972ARPWR pinout, TPS25972ARPWR application, or TPS25972ARPWR equivalent, key selection criteria include OVCSEL-configurable overvoltage clamping, adjustable ILIM (0.87A–7.7A) with ±10% accuracy above 1.74A, transient overcurrent blanking via ITIMER capacitor, dVdt-controlled slew rate, and PG/PGTH-based power-good signaling for system sequencing.
Technical Context
The TPS25972ARPWR implements a dual-mode overvoltage response using the OVCSEL pin to select among three fixed clamp thresholds-enabling direct output voltage limiting without external feedback. Its current-limit architecture supports active regulation (not latch-off) and integrates an analog ILM output that simultaneously sets ILIM and provides real-time load current monitoring at ±8% accuracy.
Protection timing is tightly controlled: 5μs OVC response, 550ns fast-trip short-circuit detection, and user-adjustable transient blanking via ITIMER capacitor. Thermal shutdown activates at 154°C with 10°C hysteresis, and the device operates across –40°C to +125°C junction temperature with 49.7°C/W RθJA on a 4-layer PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 23V - supports wide-input industrial and computing rails; 28V absolute max prevents damage during transients. |
| Continuous Current Rating | 7A - enables robust single-device protection for high-current 12V/5V distribution paths. |
| RON | 9.8mΩ (typ.) - minimizes conduction loss (≤0.48W at 7A), reducing thermal stress and PCB area. |
| OVC Threshold Options | 3.89V / 5.76V / 13.88V (pin-selectable) - eliminates need for external OVLO resistor network; simplifies BOM and layout. |
| ILM Monitor Accuracy | ±8% (max) - enables reliable real-time load telemetry for system health monitoring and dynamic power budgeting. |
| Short-Circuit Response | 550ns (typ.) - ensures sub-microsecond fault isolation to protect downstream FETs, capacitors, and ICs. |
| Operating Temperature | –40°C to +125°C - qualified for industrial, medical, and enterprise storage environments with extended thermal margins. |
Pinout & Package
TPS25972ARPWR uses a 10-pin HotRod™ QFN package (2.0mm × 2.0mm, 0.45mm pitch) with exposed thermal pad for enhanced power dissipation and compact board integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | Main input supply connection (2.7V–23V); handles up to 28V abs max. |
| OUT | Power Output | Protected output rail; clamped or shut down during OVC/overcurrent events. |
| EN/UVLO | Enable & UVLO Input | Active-high enable; resistor divider sets undervoltage lockout threshold (1.2V typ. rising). |
| OVCSEL | OVC Threshold Select | Analog input selecting 3.89V (GND), 5.76V (open), or 13.88V (390kΩ to GND) clamp point. |
| PG | Power-Good Output | Open-drain signal asserted high when OUT is stable and exceeds PGTH threshold. |
| PGTH | PG Threshold Input | Analog input setting power-good assertion level (1.2V typ. rising threshold). |
| ITIMER | Transient Blanking Timer | Capacitor-to-GND sets duration allowing peak currents up to 2×ILIM before action. |
| ILM | Current Limit & Monitor | Resistor-to-GND sets ILIM (0.87A–7.7A); voltage output scales 105.5µA/A for analog monitoring. |
| dVdt | Slew Rate Control | Capacitor-to-GND adjusts output turn-on slew rate (0.72–34.16 V/ms range) to manage inrush. |
| GND | Ground Reference | System ground return for all internal circuits and thermal pad connection. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-selectable OVC | Three fixed clamp voltages eliminate external OVLO resistors and simplify design-in for 3.3V, 5V, and 12V rails. |
| Adjustable ILIM with ±10% accuracy | Supports precise current limiting from 0.87A to 7.7A using one external resistor; critical for consistent trip behavior across process/voltage/temp. |
| Dual-function ILM pin | Single pin sets current limit threshold *and* delivers proportional analog current monitor signal-reducing component count and routing complexity. |
| Configurable transient blanking | ITIMER capacitor allows temporary overloads (e.g., motor startup, capacitor charging) without false trips-improving system reliability. |
| Programmable dVdt control | Capacitor on dVdt pin linearly controls output rise time, enabling predictable inrush management for large bulk capacitance loads. |
Applications
| Server Power Distribution | Enterprise Storage Power |
|---|---|
Use Scenario: Protecting 12V intermediate bus feeding CPU VRMs, PCIe slots, and memory modules on dual-socket server motherboards. IC Role / Device Role / Timing Role: Primary eFuse for rail-level overcurrent and overvoltage defense; responds in ≤5μs to OVC and ≤550ns to shorts. Use Value: Prevents cascading failure during hot-swap events or VRM faults while enabling accurate load current telemetry for power budgeting. | Use Scenario: Securing 5V/12V rails powering RAID controllers, NVMe SSDs, and SAS HBAs in enterprise storage enclosures. IC Role / Device Role / Timing Role: High-speed current-limiting switch with OVC clamp to safeguard against backfeed, surge, and connector arcing. Use Value: Maintains uptime by avoiding latched faults-auto-retry operation restores power after transient overload clears. |
| Patient Monitoring Systems | Industrial Point-of-Sale Terminals |
Use Scenario: Isolating and protecting sensitive analog front-end and digital processing rails in Class II medical devices. IC Role / Device Role / Timing Role: Safety-critical power-path protector with UL 2367 recognition and IEC 62368-1 CB certification. Use Value: Meets regulatory requirements for fault containment while delivering ±8% current monitoring for battery life estimation and diagnostics. | Use Scenario: Managing power to touchscreens, barcode scanners, and thermal printers in retail kiosks operating in uncontrolled environments. IC Role / Device Role / Timing Role: Robust eFuse handling repeated hot-plug events, ESD exposure, and load dumps from peripheral attachments. Use Value: Eliminates need for discrete fuses and TVS arrays-reducing bill-of-materials and improving long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS25970ARPWR | Uses adjustable OVLO (resistor-based) instead of pin-selectable OVC; no PG/PGTH pins; FLT-only fault reporting. | Better suited for designs requiring programmable overvoltage lockout and minimal fault signaling overhead. | Select when OVLO threshold must be fine-tuned beyond fixed options and power-good sequencing is not required. |
| TPS25974ARPWR | Offers circuit-breaker (latch-off) overcurrent response instead of active current limit; retains OVCSEL and PG/PGTH functionality. | Ideal for safety-critical systems where permanent fault isolation is mandated after first overcurrent event. | Choose when compliance with fail-safe shutdown (e.g., IEC 62368-1 Annex G) requires non-auto-retry behavior. |
Compared with TPS25970ARPWR, the TPS25972ARPWR adds PG/PGTH signaling and fixed OVC for simpler, faster overvoltage response-while TPS25974ARPWR trades active current limiting for latch-off behavior, making it suitable for stricter safety domains where auto-retry is prohibited.
Availability
TPS25972ARPWR is available at Aetrix Electronics and suitable for server motherboard power distribution, enterprise storage subsystems, and medical patient monitor front-end supplies requiring stable component supply, full production traceability, and long-term lifecycle support.
Supply support for TPS25972ARPWR 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 for industrial, automotive, and communications markets.
The TPS2597xx family was designed specifically for high-reliability, high-density power-path protection in datacenter, storage, and medical equipment-emphasizing precision current monitoring, ultrafast fault response, and simplified overvoltage management.
FAQ
What overvoltage protection modes does the TPS25972ARPWR support?
The TPS25972ARPWR supports only pin-selectable overvoltage clamp (OVC) with three fixed thresholds: 3.89V (OVCSEL = GND), 5.76V (OVCSEL = open), and 13.88V (OVCSEL = 390kΩ to GND). It does not support adjustable OVLO-the TPS25970x/4x variants provide that function instead. The OVC response time is 5μs typical, clamping output to the selected voltage without shutting down the power path.
How is the current limit threshold set on the TPS25972ARPWR?
The TPS25972ARPWR sets its overcurrent threshold (ILIM) using an external resistor (RILM) from the ILM pin to GND. With RILM = 715Ω, ILIM = 7.67A (typ.); with RILM = 6.65kΩ, ILIM = 0.87A (typ.). The device guarantees ±10% accuracy for ILIM > 1.74A across temperature and voltage, and the same ILM pin delivers an analog current monitor output scaling at 105.5µA/A.
Does the TPS25972ARPWR provide power-good signaling?
Yes, the TPS25972ARPWR provides open-drain power-good (PG) signaling via Pin 3. PG asserts high when the output is fully enabled and the voltage at the PGTH pin exceeds its rising threshold (1.2V typ.). The PGTH pin accepts an external voltage divider to set the exact turn-on point, enabling flexible sequencing with downstream regulators or microcontrollers in complex power systems.
What is the purpose of the ITIMER pin on the TPS25972ARPWR?
The ITIMER pin on the TPS25972ARPWR configures the transient overcurrent blanking interval using an external capacitor to GND. During this interval, output current may exceed the programmed ILIM (up to 2×ILIM) without triggering current-limit action-allowing safe handling of inrush, motor startup, or burst-mode loads. The blanking duration is directly proportional to the capacitor value and is fully user-adjustable.
Can the TPS25972ARPWR be used in hot-swap applications?
Yes, the TPS25972ARPWR is explicitly designed for hot-swap applications. Its fast 550ns short-circuit response, 5μs OVC clamp, adjustable dVdt-controlled slew rate, and auto-retry fault behavior make it ideal for live-insertion scenarios in servers, storage backplanes, and modular instrumentation. The device also meets UL 2367 and IEC 62368-1 safety standards required for such use cases.
TPS25972ARPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- -
- Accuracy:
- ±10%
- Voltage - Input:
- 2.7V ~ 23V
- Current - Output:
- 7A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VQFN-HR (2x2)
TPS25972ARPWR FAQ
1.How can I place an order for TPS25972ARPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS25972ARPWR 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 TPS25972ARPWR reliable?
The price and inventory of TPS25972ARPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS25972ARPWR is usually 5 days.
3.What payment methods are accepted for TPS25972ARPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS25972ARPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS25972ARPWR?
TPS25972ARPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS25972ARPWR 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 TPS25972ARPWR?
For technical support, including TPS25972ARPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS25972ARPWR requirements.
6.How does Aetrix verify that TPS25972ARPWR is sourced from the original manufacturer or authorized distributors?
All TPS25972ARPWR 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 TPS25972ARPWR meets industry standards.
7.What is the process for return or replacement of TPS25972ARPWR?
All TPS25972ARPWR units undergo pre-shipment inspection (PSI). If there is an issue with TPS25972ARPWR, 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 TPS25972ARPWR part is unused and in its original packaging.
Return procedure for TPS25972ARPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS25972ARPWR Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
