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Texas Instruments TPS259482AYWPR
- Part No.:
- TPS259482AYWPR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 12-XFBGA, DSBGA
- Datasheet:
-
TPS259482AYWPR.pdf
- Description:
- 3.5-V TO 23-V, 12.2-M, 8-A EFUSE
- Quantity:
- Payment:
- Shipping:
Inventory:732
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Product details
Overview
TPS259482AYWPR from Texas Instruments is a bidirectional eFuse IC designed for USB Power Delivery (PD) port protection and priority power MUXing. It operates from 3.5V to 23V input, features 12.2mΩ typical RON, supports 8A continuous current, and provides true reverse current blocking with external RCBCTRL pin control-enabling bi-directional power delivery in DRP/OTG applications.
For engineers reviewing the TPS259482AYWPR datasheet, TPS259482AYWPR pinout, TPS259482AYWPR application, or TPS259482AYWPR equivalent, key selection criteria include its adjustable overvoltage lockout (1μs response), ±10% ILIM accuracy above 3A, active current limiting with programmable blanking timer, integrated slew rate control (dVdt), and fault signaling via open-drain FLT and SPLYGD outputs.
Technical Context
The TPS259482AYWPR integrates back-to-back N-channel MOSFETs with linear ORing control to achieve near-zero DC reverse current and ideal diode behavior. Its RCBCTRL pin enables dynamic disable of reverse current blocking during steady-state operation-critical for USB Dual-Role Port (DRP) and On-The-Go (OTG) topologies where bidirectional power flow is required.
Protection architecture includes fast-trip short-circuit response (<1μs), adjustable overcurrent threshold (1A–9A via ILM resistor), programmable OVLO (1.18V–1.23V rising threshold), and thermal shutdown at 154°C with 10°C hysteresis. All protections operate independently whether powered from IN or OUT pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 23V - supports wide-range adapter, USB PD, and industrial supply rails without external regulation. |
| RON (typ) | 12.2mΩ - minimizes conduction loss and self-heating at 8A, enabling compact thermal design in PowerWCSP package. |
| Continuous Current | 8A - rated for sustained load current across –40°C to +125°C junction temperature range. |
| OVLO Response Time | 1μs (typ) - cuts off output within one microsecond of overvoltage detection, protecting downstream circuitry. |
| ILIM Accuracy | ±10% max for thresholds >3A - ensures predictable current limiting without calibration overhead. |
| RCBCTRL Function | Active-high digital input - disables reverse current blocking when pulled low, enabling bi-directional power delivery in DRP mode. |
| Thermal Shutdown | 154°C rising threshold with 10°C hysteresis - prevents permanent damage during overload or poor heatsinking. |
Pinout & Package
TPS259482AYWPR uses a 12-ball Power Wafer Chip Scale Package (PowerWCSP), measuring 2.4mm × 1.7mm with 0.5mm pitch. The package supports high thermal performance (RθJA = 33.4°C/W on 2s2p PCB) and ultra-compact layout for space-constrained USB-C and server board designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Active-high enable / UVLO threshold adjust | Resistor divider sets undervoltage lockout; device remains off until input exceeds ~1.2V threshold. |
| OVLO | Adjustable overvoltage lockout input | Resistor divider sets OVLO threshold (1.18V–1.23V); triggers immediate output cutoff if exceeded. |
| SPLYGD | Active-high supply good indicator | Open-drain output asserted high after successful inrush and stable VOUT - used for power sequencing in MUX systems. |
| FLT / RCBCTRL | Dual-function terminal | Configured as RCBCTRL (active-high) for bi-directional mode control; not FLT - distinct from TPS259480x variants. |
| IN (pins 5, 12) | Main power input terminals | Back-to-back FET source/drain connections; supports bidirectional power flow depending on control state. |
| OUT (pins 6, 11) | Main power output terminals | Load-side connection points; voltage regulated by internal FETs and dVdt-controlled slew rate. |
| dVdt | Slew rate control output | Capacitor to GND sets output turn-on rise time - critical for inrush current management in high-capacitance loads. |
| GND | System ground reference | Common return for all analog and digital functions; must be low-impedance connection to PCB ground plane. |
| ILM | Current limit set / load current monitor | Resistor to GND programs ILIM (1A–9A); pin voltage provides ±6% accurate analog current readback (IOUT ≥ 3A). |
| ITIMER | Overcurrent blanking timer control | Capacitor to GND extends transient tolerance window before current limiting activates - avoids nuisance trips on startup peaks. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional power delivery support | RCBCTRL pin allows controlled disable of reverse current blocking - essential for USB DRP/OTG compliance without external switches. |
| Programmable fast-trip overcurrent | Scalable threshold up to 240% of ILIM with <900ns response - protects against hard shorts while tolerating brief inrush peaks. |
| True reverse current blocking (RCB) | Blocks reverse flow at all times unless RCBCTRL is actively pulled low - eliminates need for external Schottky diodes in ORing paths. |
| Integrated slew rate control | dVdt pin + external capacitor enables precise output ramp control - reduces EMI and stress on downstream capacitors during power-up. |
| Dual-supply operation | Functional when powered from either IN or OUT - supports redundant power inputs and backup battery switchover in enterprise storage. |
Applications
| USB PD Port Protection | Priority Power MUXing |
|---|---|
|
Use Scenario: Protecting USB-C ports on smartphones, notebooks, and docks against overvoltage, overcurrent, and reverse energy injection during hot-plug events. IC Role / Device Role / Timing Role: Primary eFuse placed between USB-C connector and system PMIC; monitors and limits current in real time with sub-microsecond fault response. Use Value: Enables compliance with USB PD 3.1 specifications while eliminating discrete TVS diodes and current-sense amplifiers - reducing BOM count and PCB area. |
Use Scenario: Selecting between primary AC adapter and secondary battery or auxiliary rail in servers and storage controllers. IC Role / Device Role / Timing Role: Acts as intelligent power path controller with SPLYGD signaling to coordinate switchover timing between two independent supplies. Use Value: Delivers seamless, glitch-free supply handoff with no brownout or reset - critical for enterprise SSDs and HBA cards requiring uninterrupted operation. |
| Enterprise Storage ORing | Adapter Input Protection |
|
Use Scenario: ORing multiple 12V supplies in SAN enclosures or eSSD modules to improve redundancy and fault tolerance. IC Role / Device Role / Timing Role: Back-to-back FET configuration emulates ideal diode behavior with <11mV forward drop at 10mA - minimizing power loss and heat generation. Use Value: Achieves >99.5% efficiency at full 8A load versus discrete diode solutions, extending thermal margin and enabling fanless enclosure designs. |
Use Scenario: Safeguarding downstream DC-DC converters and processors from faulty wall adapters or surge events in industrial IoT gateways. IC Role / Device Role / Timing Role: First-line defense against IEC 61000-4-5 level 4 surges (28V on IN) and sustained overvoltage conditions. Use Value: Integrates UL 2367 recognition and IEC 62368-1 CB certification - simplifies safety compliance testing and reduces time-to-market. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259482LYWP | Latch-off fault response instead of auto-retry; same RON, ILIM range, and RCBCTRL functionality. | Preferred in safety-critical systems where persistent fault isolation is required after overcurrent event. | Select TPS259482LYWP when automatic recovery after fault is undesirable; otherwise TPS259482AYWPR supports retry-based resilience. |
| TPS259472AYWPR | Lower 6A rating, fixed 15mΩ RON, no RCBCTRL pin - unidirectional only, no bi-directional power capability. | Suitable for cost-sensitive USB-C peripheral ports without DRP/OTG requirements. | Choose TPS259482AYWPR when bidirectional flow or higher 8A capacity is mandatory; TPS259472AYWPR trades capability for lower cost and smaller footprint. |
Compared with TPS259482LYWP, TPS259482AYWPR offers auto-retry behavior for transient faults, improving system uptime. Against TPS259472AYWPR, it delivers higher current handling, lower RON, and essential RCBCTRL control - making it the only option for USB DRP and high-efficiency ORing.
Availability
TPS259482AYWPR is available at Aetrix Electronics and suitable for USB PD port protection, enterprise storage ORing, and priority power MUXing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS259482AYWPR 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 eFuse innovation.
The TPS25948xx family was engineered specifically for high-density, high-reliability power delivery in USB-C, server, and enterprise storage systems - emphasizing bidirectional control, fast protection, and minimal footprint.
FAQ
What is the maximum continuous current rating for TPS259482AYWPR?
The TPS259482AYWPR is rated for 8A continuous current across its full operating temperature range of –40°C to +125°C junction temperature. This rating assumes proper PCB thermal design per the datasheet's 2s2p layout guidance and accounts for its 12.2mΩ typical RON to ensure safe power dissipation under sustained load.
How does the RCBCTRL pin function in TPS259482AYWPR?
In TPS259482AYWPR, the RCBCTRL pin is an active-high input that disables reverse current blocking when pulled low. When left floating or pulled high, true reverse current blocking is enabled at all times. This pin is essential for enabling bi-directional power delivery in USB DRP and OTG applications - a defining feature distinguishing TPS259482AYWPR from unidirectional eFuses.
Can TPS259482AYWPR be powered from the output side (OUT pins)?
Yes, TPS259482AYWPR supports dual-supply operation and functions identically whether powered from IN or OUT pins. Its internal architecture allows full protection, current limiting, and status signaling regardless of power source direction - making it ideal for redundant power paths and battery-backed systems where OUT may become the primary supply.
What is the purpose of the dVdt pin on TPS259482AYWPR?
The dVdt pin on TPS259482AYWPR controls output voltage slew rate during turn-on. Connecting a capacitor from dVdt to GND slows the output rise time, directly limiting inrush current into large downstream capacitances. With no capacitor, the device achieves fastest possible turn-on; adding 3.3nF or 6.8nF yields predictable, design-adjustable ramp rates - critical for EMI reduction and capacitor stress mitigation.
Does TPS259482AYWPR provide analog current monitoring capability?
Yes, TPS259482AYWPR provides analog load current monitoring via the ILM pin. When configured with an external resistor to set ILIM, the same pin outputs a voltage proportional to load current with ±6% typical accuracy for IOUT ≥ 3A. This eliminates the need for external current-sense amplifiers in applications requiring real-time power telemetry or adaptive load management.
TPS259482AYWPR 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)
TPS259482AYWPR FAQ
1.How can I place an order for TPS259482AYWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259482AYWPR 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 TPS259482AYWPR reliable?
The price and inventory of TPS259482AYWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259482AYWPR is usually 5 days.
3.What payment methods are accepted for TPS259482AYWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259482AYWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259482AYWPR?
TPS259482AYWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259482AYWPR 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 TPS259482AYWPR?
For technical support, including TPS259482AYWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259482AYWPR requirements.
6.How does Aetrix verify that TPS259482AYWPR is sourced from the original manufacturer or authorized distributors?
All TPS259482AYWPR 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 TPS259482AYWPR meets industry standards.
7.What is the process for return or replacement of TPS259482AYWPR?
All TPS259482AYWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS259482AYWPR, 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 TPS259482AYWPR part is unused and in its original packaging.
Return procedure for TPS259482AYWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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