My Inquiry
My Account
Texas Instruments TPS259480LYWPR
- Part No.:
- TPS259480LYWPR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 12-XFBGA, DSBGA
- Datasheet:
-
TPS259480LYWPR.pdf
- Description:
- 3.5-V TO 23-V, 12.2-M, 8-A EFUSE
- Quantity:
- Payment:
- Shipping:
Inventory:3,234
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS259480LYWPR from Texas Instruments is a bidirectional eFuse IC designed for power path control and circuit protection in USB PD, server, and enterprise storage systems. It operates from 3.5V to 23V input, features 12.2mΩ typical RON, 8A continuous current capability, latch-off fault response, and integrated back-to-back FETs with true reverse current blocking (RCB) disabled via RCBCTRL pin - enabling bi-directional power delivery for DRP/OTG applications.
For engineers reviewing the TPS259480LYWPR datasheet, TPS259480LYWPR pinout, TPS259480LYWPR application, or TPS259480LYWPR equivalent, key selection criteria include its latch-off fast-trip mode, adjustable overcurrent threshold (1–9A), 1μs OVLO response, ±6% load current monitoring accuracy above 3A, and PowerWCSP 2.4mm × 1.7mm package with 12-ball layout optimized for thermal performance and space-constrained PCBs.
Technical Context
The TPS259480LYWPR implements a linear ORing-based ideal diode scheme using integrated back-to-back FETs to achieve near-zero DC reverse current and minimal forward voltage drop. Its RCBCTRL pin allows external disabling of reverse current blocking during steady-state operation - a critical enabler for USB Dual-Role Port (DRP) and On-The-Go (OTG) topologies requiring bidirectional power flow.
Protection logic combines active current limiting with scalable fast-trip (adjustable at 2×ILIM) and fixed fast-trip (25.1A typical) thresholds, plus <1μs short-circuit response. Overvoltage lockout (OVLO) is resistor-adjustable with 1μs typical reaction time, while dVdt and ITIMER pins support slew-rate control and transient blanking via external capacitors - all coordinated within a –40°C to +125°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 23V - supports wide-input adapter, USB PD, and server rail architectures without external regulation. |
| RON (typ) | 12.2mΩ - enables low conduction loss (≤97mW at 8A), reducing thermal stress and improving efficiency in high-current paths. |
| Continuous Current | 8A - rated for sustained load delivery in notebook docks, add-on cards, and eSSD power rails. |
| Fast-Trip Threshold | Fixed at 25.1A (typ) - provides sub-microsecond (<750ns) shutdown for hard shorts, minimizing energy let-through. |
| OVLO Response Time | 1μs (typ) - ensures rapid output cutoff during input surges, protecting downstream converters and LDOs. |
| Current Monitor Accuracy | ±6% (typ, IOUT ≥ 3A) - enables precise real-time load current telemetry for system-level power management and diagnostics. |
| Fault Response Mode | Latch-off - prevents automatic recovery after overcurrent/overvoltage events, supporting fail-safe system behavior in safety-critical applications. |
Pinout & Package
TPS259480LYWPR uses the YWP package: a 12-ball Power Wafer Chip Scale Package (PowerWCSP) measuring 2.4mm × 1.7mm with 0.5mm pitch, optimized for thermal dissipation and minimal PCB footprint in high-density designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Active-high enable / UVLO threshold adjust | Resistor divider sets turn-on threshold (1.2V typ); enables controlled startup and brownout protection. |
| OVLO | Adjustable overvoltage lockout input | Resistor divider configures OVLO threshold (1.2V typ); triggers 1μs shutdown if input exceeds set limit. |
| SPLYGD | Active-high supply good indicator | Open-drain output signals valid input and completed inrush; used for priority MUX sequencing and auxiliary eFuse enable. |
| FLT | Active-low fault indicator | Open-drain signal pulled low on any fault (OV, OC, OTP); latches low until reset via EN toggle. |
| IN (pins 5,12) | Power input terminal | Accepts 3.5–23V supply; supports bidirectional operation when RCBCTRL disables reverse blocking. |
| OUT (pins 6,11) | Power output terminal | Delivers regulated output to load; maintains reverse current blocking unless RCBCTRL is asserted low. |
| dVdt | Slew rate control output | Capacitor to GND sets output rise time (0.58–38.3 V/ms); controls inrush current and reduces EMI. |
| GND | System ground reference | Common return for all internal circuits; must be low-impedance connection to minimize noise and thermal resistance. |
| ILM | Current limit & monitor analog I/O | Resistor to GND sets ILIM (1–9A); pin voltage provides ±6% accurate analog current readback. |
| ITIMER | Transient blanking timer output | Capacitor to GND extends overcurrent blanking window; allows safe peak currents above ILIM during transients. |
| RCBCTRL | Reverse current blocking control input | Low assertion disables RCB, enabling steady-state bidirectional power flow for USB DRP/OTG operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional power delivery support | RCBCTRL pin allows intentional disable of reverse current blocking - essential for USB PD DRP port implementation and OTG host/peripheral role switching. |
| Adjustable slew rate control | Single external capacitor on dVdt pin tunes output rise time across 0.58–38.3 V/ms range - eliminates need for discrete RC networks and simplifies inrush management. |
| High-accuracy current monitoring | ILM pin delivers ±6% analog current readback (IOUT ≥ 3A), enabling real-time power budgeting and predictive fault detection without additional sense amplifiers. |
| Fast-trip short-circuit protection | 750ns fixed fast-trip response (25.1A typ) limits fault energy to <1.9µJ - protects MOSFETs, connectors, and PCB traces during catastrophic shorts. |
| Latch-off fault handling | FLT remains asserted until EN is cycled - prevents uncontrolled auto-retry in persistent fault conditions, meeting safety requirements for enterprise and industrial systems. |
Applications
| Adapter and Charger Input Protection | USB PD Port Protection |
|---|---|
Use Scenario: Protecting laptop, tablet, or smartphone charging inputs against overvoltage from faulty adapters or surge events. IC Role / Device Role / Timing Role: Primary front-end protection device placed between input connector and buck converter; responds to 28V abs max input surges with 1μs OVLO cutoff. Use Value: Prevents damage to downstream DC/DC stages and battery management ICs by cutting off output before surge propagates - validated per IEC 61000-4-5 (28V on IN). | Use Scenario: Securing USB-C ports in notebooks, docks, and monitors supporting Power Delivery up to 100W. IC Role / Device Role / Timing Role: Bidirectional eFuse enabling both source and sink roles; RCBCTRL disables reverse blocking during DRP negotiation to allow power reversal. Use Value: Enables compliant USB PD 3.1 DRP operation with 8A continuous current, ±6% current telemetry for power contract validation, and latch-off fault isolation. |
| Server Motherboard Power MUXing | Enterprise Storage Power ORing |
Use Scenario: Prioritizing redundant 12V supplies on server motherboards with seamless switchover during primary rail failure. IC Role / Device Role / Timing Role: High-side power MUX controller using SPLYGD to coordinate auxiliary eFuse enablement; supports linear ORing with <10.6mV forward drop. Use Value: Eliminates need for discrete Schottky diodes or controllers; achieves zero reverse leakage and 12.2mΩ conduction loss - reducing heat and board area by >60% vs discrete solutions. | Use Scenario: ORing power from dual PSUs to HBA, SAN, or eSSD modules where uninterrupted operation is mandatory. IC Role / Device Role / Timing Role: Back-to-back FET eFuse providing true reverse current blocking and active current limiting; supports hot-swap and load-step immunity. Use Value: Maintains system uptime during PSU transitions with <46.5μs RCB recovery and ±10% ILIM accuracy - ensuring stable 8A delivery under dynamic loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259480AYWP | Auto-retry fault response instead of latch-off; same RON, voltage range, and pinout. | Suitable for non-safety-critical systems requiring automatic recovery after transient faults. | Select when system firmware can handle repeated fault events and manual reset is undesirable. |
| TPS259472LYWPR | Lower 6A rating, 15.5mΩ RON, identical latch-off mode and PowerWCSP package. | Better suited for space-constrained 5–6A applications like portable SSD enclosures or compact docking stations. | Choose for cost-optimized designs where 8A headroom is unnecessary and thermal margin is acceptable. |
Compared with TPS259480AYWP and TPS259472LYWPR, the TPS259480LYWPR uniquely balances 8A capacity, latch-off safety, and USB PD DRP readiness - making it optimal for enterprise-grade power MUX and bidirectional USB-C infrastructure where fault containment and role flexibility are mandatory.
Availability
TPS259480LYWPR is available at Aetrix Electronics and suitable for USB PD port protection, server motherboard power MUXing, and enterprise storage ORing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS259480LYWPR 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 TPS25948xx family was engineered specifically for high-reliability power path protection in USB PD, server, and storage systems - integrating bidirectional control, precision current monitoring, and ultrafast fault response into a thermally enhanced wafer-level package.
FAQ
What is the fault response behavior of the TPS259480LYWPR?
The TPS259480LYWPR uses a latch-off fault response mode: upon detecting overvoltage, overcurrent, or overtemperature, it shuts down and holds FLT low until the EN pin is cycled (disabled then re-enabled). This prevents uncontrolled auto-retry during persistent faults - a requirement for safety-critical server and storage applications. Unlike auto-retry variants such as TPS259480AYWP, the TPS259480LYWPR requires explicit system intervention to resume operation after fault clearance.
How does the TPS259480LYWPR support USB Dual-Role Port (DRP) functionality?
The TPS259480LYWPR supports USB DRP through its RCBCTRL pin: when pulled low, it disables true reverse current blocking, allowing steady-state bidirectional power flow between IN and OUT terminals. This enables compliant USB PD 3.1 role swapping - for example, a dock acting as both power source (VBUS supply) and sink (when powered by host). The device maintains 12.2mΩ RON in both directions and delivers ±6% current monitoring accuracy for real-time power contract validation.
What is the maximum continuous current rating for the TPS259480LYWPR?
The TPS259480LYWPR is rated for 8A continuous current under recommended operating conditions (–40°C to +125°C junction temperature, proper PCB thermal design). This rating applies to both IN→OUT and OUT→IN power flow when RCBCTRL is asserted low. Derating may be required at elevated ambient temperatures or with insufficient copper area; thermal data shows RθJA = 33.4°C/W on a 2s2p PCB, supporting full 8A operation with ≤26.7°C temperature rise above ambient.
Can the overcurrent threshold of the TPS259480LYWPR be adjusted, and what is its accuracy?
Yes, the overcurrent threshold (ILIM) of the TPS259480LYWPR is resistor-adjustable from 1A to 9A using an external resistor on the ILM pin. For thresholds above 3A, accuracy is ±10% maximum - verified across temperature and process variation. At 8A setting (RILM = 604Ω), the device guarantees 7.2A–8.7A trip range. The ILM pin also serves as an analog current monitor with ±6% typical accuracy for IOUT ≥ 3A, enabling closed-loop power management without external sense resistors.
What package type and thermal performance does the TPS259480LYWPR use?
The TPS259480LYWPR uses the YWP package: a 12-ball PowerWCSP measuring 2.4mm × 1.7mm with 0.5mm pitch. Its thermal metrics include RθJA = 33.4°C/W (2s2p PCB), RθJB = 11.2°C/W, and ΨJT = 0.3°C/W - confirming efficient heat transfer to the PCB and component top surface. This enables reliable 8A operation in compact, high-density layouts typical of USB-C docks and server add-in cards without requiring heatsinks or forced air.
TPS259480LYWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- High-Side
- Accuracy:
- ±10%
- Voltage - Input:
- 3.5V ~ 23V
- Current - Output:
- 8A
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-DSBGA (2.43x1.74)
TPS259480LYWPR FAQ
1.How can I place an order for TPS259480LYWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259480LYWPR 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 TPS259480LYWPR reliable?
The price and inventory of TPS259480LYWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259480LYWPR is usually 5 days.
3.What payment methods are accepted for TPS259480LYWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259480LYWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259480LYWPR?
TPS259480LYWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259480LYWPR 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 TPS259480LYWPR?
For technical support, including TPS259480LYWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259480LYWPR requirements.
6.How does Aetrix verify that TPS259480LYWPR is sourced from the original manufacturer or authorized distributors?
All TPS259480LYWPR 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 TPS259480LYWPR meets industry standards.
7.What is the process for return or replacement of TPS259480LYWPR?
All TPS259480LYWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS259480LYWPR, 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 TPS259480LYWPR part is unused and in its original packaging.
Return procedure for TPS259480LYWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS259480LYWPR 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…
