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TPS25940LRPW

2.7-18V 42mΩ eFuse, reverse current blocking, DevSleep, 0.6-5.3A current limit, VQFN-20, TI

12000

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Pieza del fabricante：

TPS25940LRPW

Paquete：

VQFN-20 (RVC) 3.5×3.5mm with thermal pad

Marca：
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Compromiso de calidad
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Descripción

Productos

The Texas Instruments TPS25940LRPW is a 2.7V to 18V, 42mΩ electronic fuse (eFuse) with true reverse current blocking and DevSleep mode support for SATA SSDs. It provides programmable current limiting (0.6A to 5.3A), overvoltage/undervoltage protection, and power good/fault signaling. The device integrates back-to-back MOSFETs for bidirectional current control in a 20-pin VQFN package.

Especificaciones

Operating Voltage Range 2.7V to 18V (20V max)
On-Resistance (RON) 42 mΩ (typical)
Adjustable Current Limit 0.6A to 5.3A (±8% accuracy)
OV/UV Threshold Accuracy ±2%
Reverse Current Blocking True reverse blocking (VIN < VOUT - 10mV)
Reverse Voltage Shutoff Time 1 µs
Corriente de reposo 200 µA (typ)
DevSleep Mode IQ 95 µA (typ)
Shutdown IQ 15 µA (typ)
Current Monitor (IMON) Accuracy ±8%
Temperatura de funcionamiento -40°C to +125°C (junction)
Paquete VQFN-20 (RVC), 3.5×3.5mm
Safety Certification UL 2367 recognized, IEC 62368-1

Características

  • Integrated back-to-back FETs for bidirectional current control
  • True reverse current blocking with 1µs shutoff response
  • Programmable output voltage slew rate (dV/dt) for inrush control
  • DevSleep mode for SATA Device Sleep compliance (95µA IQ)
  • Precise current monitor output (IMON) with ±8% accuracy
  • Programmable overvoltage and undervoltage thresholds (±2%)
  • Power Good (PGOOD) and Fault (FLT) output signals
  • Open/short ILIM pin detection for fail-safe design
  • Thermal shutdown at 160°C with latch-off or auto-retry options
  • UL 2367 and IEC 62368-1 safety certified

Aplicaciones

  • Enterprise SSD power management
  • Hot-swap and hot-plug power management
  • Server and storage system protection
  • Industrial power rail protection
  • USB-C and Thunderbolt power path management
  • Battery-powered system protection

The Texas Instruments TPS25940LRPW is a smart electronic fuse (eFuse) with integrated back-to-back MOSFETs providing 42mΩ on-resistance and true reverse current blocking. Operating from 2.7V to 18V, it offers programmable current limiting (0.6A-5.3A, ±8%), overvoltage/undervoltage protection (±2%), and programmable dV/dt inrush control. A unique DevSleep mode (95µA IQ) supports SATA Device Sleep compliance for SSD power management. The device provides precise current monitoring (IMON, ±8%), Power Good (PGOOD), and Fault (FLT) outputs. Safety certifications include UL 2367 and IEC 62368-1. The TPS25940L variant latches off on fault; TPS25940A variant auto-retries.

The TPS25940 integrates two back-to-back N-channel MOSFETs between IN and OUT, enabling bidirectional current blocking. During normal operation, both FETs are fully enhanced (42mΩ total). The device continuously monitors: (1) Load current via an internal sense resistor — if current exceeds the programmed limit (set by RILIM), the FET operates in linear mode to clamp current; if a fast-trip threshold is exceeded (short circuit), the FET turns off immediately within 10mV (reverse condition), the FET turns off within 1µs to prevent backfeed; (4) Junction temperature — if TJ exceeds 160°C, thermal shutdown activates. The dV/dT pin controls output ramp rate during startup via an external capacitor, limiting inrush current. DevSleep mode (DEVSLP pin high) reduces IQ to 95µA while maintaining output voltage and essential protections.

Descripción de la clavija (las definiciones de las clavijas de salida sólo tienen formato de tabla; devuelven el contenido puro sin derivación ni elaboración adicional)

Escenarios de aplicación (las definiciones de las clavijas de salida sólo tienen formato de tabla; devuelven el contenido puro sin derivación ni elaboración adicional)

TPS25940LRVCR (VQFN-20, tape & reel); TPS25940A (auto-retry variant); TPS25942 (higher current, 5.5A); TPS25200 (simpler eFuse, 2.5A); MAX17523 (Maxim, similar eFuse); NCP45520 (ON Semi, load switch with current limit)

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Garantía de calidad

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

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Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Envíos y pagos

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
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    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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