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Texas Instruments TPS259814ARPWR
- Part No.:
- TPS259814ARPWR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFQFN
- Datasheet:
-
TPS259814ARPWR.pdf
- Description:
- 2.7-V TO 16-V, 10-A, 6-M EFUSE W
- Quantity:
- Payment:
- Shipping:
Inventory:4,561
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Product details
Overview
TPS259814ARPWR from Texas Instruments is a 2.7V–16V, 10A, 6mΩ integrated eFuse IC with transient overcurrent blanking timer, fast 640ns short-circuit response, and adjustable overvoltage lockout (1.2μs response). It functions as a smart power path switch in high-reliability server and optical module power rails, delivering circuit-breaker overcurrent protection and analog load current monitoring (±10% accuracy ≥3A).
For engineers reviewing the TPS259814ARPWR datasheet, TPS259814ARPWR pinout, TPS259814ARPWR application, or TPS259814ARPWR equivalent, key selection considerations include its 10-pin HotRod™ QFN package, user-adjustable ILIM (1.5–11A), dV/dt-controlled slew rate, and dual enable/UVLO & OVLO pins enabling flexible system-level fault management.
Technical Context
The TPS259814ARPWR implements a precision current-limit amplifier feeding a comparator-based circuit-breaker control loop, with independent fast-trip detection triggered at up to 2×ILIM. Its internal thermal shutdown (154°C rising threshold, 10°C hysteresis) operates autonomously alongside electrical protections.
It features two analog input pins-EN/UVLO and EN/OVLO-that share identical 1.20V rising/1.09V falling thresholds but serve distinct roles: one for enable/undervoltage lockout, the other for overvoltage lockout or active-low enable. The ILM pin provides dual-function current limit setting and ±10% accurate analog current monitoring output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 16V - supports wide-input industrial and server rails; absolute max 20V prevents damage during transients. |
| Continuous Current Rating | 10A - verified at TJ ≤ 125°C; enables single-device replacement of discrete MOSFET + controller solutions in 12V distribution paths. |
| RON | 6mΩ typical (2.7–16V, 3A, 25°C) - minimizes conduction loss (<60mW at 10A), critical for thermal management in dense PCB layouts. |
| Overcurrent Threshold Accuracy | ±10% for ILIM > 5A - ensures predictable trip margins across voltage, temperature, and process variation in production systems. |
| Short-Circuit Response Time | 640ns typical - limits fault energy delivery before downstream components sustain damage during hard shorts. |
| Operating Junction Temperature | –40°C to +125°C - qualified for extended industrial and telecom environments without derating. |
| Package | 10-pin HotRod™ QFN (2.0mm × 2.0mm, 0.45mm pitch) - ultra-compact footprint with exposed thermal pad for enhanced heat dissipation. |
Pinout & Package
TPS259814ARPWR uses a 10-pin HotRod™ QFN (RPW) package with 0.45mm pitch and an exposed thermal pad for low-θJA (49.7°C/W on custom 4-layer board). Pin 1 is top-left, marked by dot; pin numbering follows standard counter-clockwise sequence.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN/UVLO | Analog input | Active-high enable with adjustable undervoltage lockout; resistor divider sets VUVLO(R) = 1.20V (rising); must not be left floating. |
| 2 - EN/OVLO | Analog input | Configurable as active-low enable or adjustable overvoltage lockout input; same threshold as EN/UVLO; enables dual-fault sensing on single rail. |
| 3 - PG | Digital output | Open-drain Power Good signal asserted high when FET is fully on and output stable; used for sequencing and status reporting. |
| 4 - FLT | Digital output | Active-low open-drain fault indicator pulled low on overvoltage, overcurrent, thermal shutdown, or UVLO; supports wired-OR fault bus. |
| 5 - IN | Power input | Main input power connection (2.7–16V); handles up to 20V absolute max; connects directly to upstream supply or hot-swap bus. |
| 6 - OUT | Power output | Switched output to load; includes quick discharge (RQOD = 488Ω) to safely drain capacitance when disabled. |
| 7 - dVdt | Analog output | Capacitor-to-GND sets output slew rate; open for fastest turn-on; enables controlled inrush into large capacitive loads. |
| 8 - GND | Ground reference | System ground return for all internal circuits; requires low-impedance connection to PCB ground plane and thermal pad. |
| 9 - ILM | Analog I/O | Resistor-to-GND sets ILIM (1.5–11A); pin voltage provides ±10% accurate analog current monitor (IMON = 95.3µA/A typical). |
| 10 - ITIMER | Analog output | Capacitor-to-GND sets transient overcurrent blanking interval; allows peak currents up to 2×ILIM without tripping during startup or load transients. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable transient overcurrent blanking timer | Capacitor-programmable ITIMER pin enables selective tolerance of benign current peaks (e.g., motor startup, capacitor charging) while maintaining fast fault response. |
| Dual-function ILM pin | Sets overcurrent threshold via external resistor *and* outputs proportional analog current monitor signal - eliminates need for separate sense amplifier. |
| Independent OVLO and UVLO inputs | EN/OVLO and EN/UVLO pins share identical thresholds but operate independently, allowing simultaneous overvoltage and undervoltage supervision on same rail. |
| Fast-trip short-circuit protection | 640ns response time at fixed 39.5A threshold ensures minimal fault energy delivery during hard shorts, protecting downstream FETs and traces. |
| UL 2367 & IEC 62368-1 certified | Recognized under UL File E115731 and CB certified per IEC 62368-1 - simplifies end-equipment safety compliance for enterprise and industrial applications. |
Applications
| Optical Module Power Management | Server Board Power Distribution |
|---|---|
|
Use Scenario: Protecting 3.3V/5V/12V bias rails in pluggable optical transceivers (QSFP-DD, OSFP) against hot-plug surges and laser diode faults. IC Role / Device Role / Timing Role: eFuse power path controller with programmable dV/dt and transient blanking to manage inrush into module capacitance while rejecting false trips from digital noise. Use Value: Enables safe hot-swap operation and extends module lifetime by preventing overvoltage-induced laser damage and overcurrent-induced bond-wire failure. |
Use Scenario: Providing per-rail overcurrent and overvoltage protection for CPU VRM input, memory DIMM slots, and PCIe add-in card power on server motherboards. IC Role / Device Role / Timing Role: High-speed circuit-breaker with 640ns fault response and auto-retry behavior to isolate faults without system reset. Use Value: Maintains system uptime by limiting fault propagation and enabling graceful recovery after transient overloads on shared power planes. |
| Enterprise Network Switch Protection | Industrial PC Power Sequencing |
|
Use Scenario: Securing 12V/48V backplane power feeds to line cards and fabric interfaces in data center switches subject to cable fault events. IC Role / Device Role / Timing Role: Dual-threshold overcurrent protector (adjustable ILIM + fixed fast-trip) with PG/FLT signaling for centralized fault logging and diagnostics. Use Value: Reduces field failure rates by detecting intermittent shorts and surge-induced overstress before catastrophic board-level damage occurs. |
Use Scenario: Managing power-up sequencing and fault containment in fanless industrial PCs operating in wide-temperature environments (–40°C to +85°C). IC Role / Device Role / Timing Role: Thermally robust eFuse with –40°C to +125°C junction rating and quick output discharge for safe state transitions between operational modes. Use Value: Eliminates need for external thermal sensors or discrete discharge FETs, reducing BOM count and improving long-term reliability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259813ARPWR | Includes reverse-current blocking FET driver on dVdt pin; otherwise identical protection features and pinout. | Required where bidirectional current flow must be prevented during device disable (e.g., battery backup paths, redundant supplies). | Select TPS259813ARPWR only if reverse-current blocking is needed; TPS259814ARPWR offers lower cost and simpler layout when unidirectional operation suffices. |
| TPS259824ARPWR | Same family, higher 12A continuous rating, 5.5mΩ RON, and extended 20V abs max input; identical pinout and feature set. | Better suited for higher-current 12V rails (e.g., GPU power delivery) where margin above 10A is required for future-proofing or derating. | Choose TPS259824ARPWR when design headroom demands >10A continuous or lower conduction loss is critical; otherwise TPS259814ARPWR optimizes cost and thermal performance. |
Compared with TPS259813ARPWR and TPS259824ARPWR, the TPS259814ARPWR delivers optimal balance of cost, size, and 10A capability for mainstream server, optical, and industrial power rails - omitting reverse-current drive saves board space and complexity where not required, while maintaining full protection fidelity.
Availability
TPS259814ARPWR is available at Aetrix Electronics and suitable for server motherboard power distribution, optical transceiver protection, and enterprise network switch applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS259814ARPWR 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 technologies, with decades of expertise in high-reliability power protection ICs.
The TPS25981x family is designed specifically for high-density, high-availability power systems in data centers and telecom infrastructure - delivering integrated eFuse functionality with programmable timing, precision current monitoring, and safety certifications in minimal footprint.
FAQ
What is the maximum continuous current rating for TPS259814ARPWR?
The TPS259814ARPWR is rated for 10A continuous current at junction temperatures ≤125°C, validated across the full 2.7V–16V input range. This rating assumes proper PCB thermal design using the exposed thermal pad and adheres to the 49.7°C/W θJA specification on a 4-layer board with thermal vias. Derating applies above 125°C junction temperature.
How does the ITIMER pin function in TPS259814ARPWR?
The ITIMER pin in TPS259814ARPWR accepts an external capacitor to program the transient overcurrent blanking interval. During this interval, output current may exceed the set ILIM threshold (up to 2×ILIM) without triggering circuit-breaker action - enabling tolerance of benign inrush or load transients. Leaving ITIMER open disables blanking for fastest fault response.
Can TPS259814ARPWR provide analog current monitoring?
Yes, the TPS259814ARPWR provides analog current monitoring via the ILM pin, which outputs a proportional current (95.3µA/A typical) with ±10% accuracy for IOUT ≥ 3A. This eliminates the need for external sense resistors and amplifiers, simplifying design while maintaining measurement fidelity across temperature and supply voltage.
What safety certifications does TPS259814ARPWR hold?
The TPS259814ARPWR holds UL 2367 recognition (File No. E115731) and IEC 62368-1 CB certification. These approvals validate its suitability for use in end equipment requiring compliance with international safety standards for information technology and audio/video equipment, including servers, switches, and industrial PCs.
Is TPS259814ARPWR pin-compatible with other devices in the TPS25981x family?
Yes, all TPS25981x variants-including TPS259814ARPWR, TPS259813ARPWR, and TPS259824ARPWR-share identical 10-pin HotRod™ QFN (RPW) packaging and pinout. This enables drop-in substitution for functional upgrades (e.g., adding reverse-current blocking or increasing current rating) without PCB redesign.
TPS259814ARPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TPS25981x
- Package/Case:
- 10-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- High-Side
- Accuracy:
- ±10%
- Voltage - Input:
- 2.7V ~ 16V
- Current - Output:
- 10A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VQFN-HR (2x2)
TPS259814ARPWR FAQ
1.How can I place an order for TPS259814ARPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259814ARPWR 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 TPS259814ARPWR reliable?
The price and inventory of TPS259814ARPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259814ARPWR is usually 5 days.
3.What payment methods are accepted for TPS259814ARPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259814ARPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259814ARPWR?
TPS259814ARPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259814ARPWR 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 TPS259814ARPWR?
For technical support, including TPS259814ARPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259814ARPWR requirements.
6.How does Aetrix verify that TPS259814ARPWR is sourced from the original manufacturer or authorized distributors?
All TPS259814ARPWR 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 TPS259814ARPWR meets industry standards.
7.What is the process for return or replacement of TPS259814ARPWR?
All TPS259814ARPWR units undergo pre-shipment inspection (PSI). If there is an issue with TPS259814ARPWR, 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 TPS259814ARPWR part is unused and in its original packaging.
Return procedure for TPS259814ARPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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