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Texas Instruments TPS259824LNRGER
- Part No.:
- TPS259824LNRGER
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS259824LNRGER.pdf
- Description:
- IC CURRENT MONITOR 5% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,590
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Product details
Overview
TPS259824LNRGER from Texas Instruments is a 2.7V–24V, 15A smart eFuse with 2.7mΩ RON, integrated hot-swap protection, ±1.5% accurate current monitoring, and configurable 16.9V overvoltage lockout (OVLO). It delivers fast-trip short-circuit response (<400ns), adjustable dV/dt slew rate control, and robust transient fault management for high-reliability power rail protection in datacenter and industrial systems.
For engineers reviewing the TPS259824LNRGER datasheet, TPS259824LNRGER pinout, TPS259824LNRGER application, or TPS259824LNRGER equivalent, key selection criteria include its 16.9V OVLO threshold, active current limiter mode, 24-pin QFN package, thermal shutdown at 150°C, and programmable retry behavior via external capacitors on NRETRY and RETRY_DLY pins.
Technical Context
The TPS259824LNRGER implements an integrated N-channel MOSFET power switch with precision current sensing, analog feedback loops for ILIM and IMON, and independent timing circuits for ITIMER (overcurrent blanking), RETRY_DLY (fault recovery delay), and NRETRY (retry count). Its OVLO threshold is fixed at 16.9V (rising), verified across temperature and process corners.
It operates as an active current limiter-not circuit breaker-per device comparison table, distinguishing it from TPS259824ONRGE. Fault response is fully configurable: latch-off or auto-retry with finite/indefinite attempts, enabled by capacitor-based timing on dedicated analog pins (NRETRY, RETRY_DLY, ITIMER), with internal oscillator hysteresis (0.65–0.85V) ensuring stable timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 24V - supports wide-rail systems including 12V/24V industrial and server standby supplies; absolute max 30V ensures margin against transients. |
| RON (typ) | 2.7mΩ - enables <150mV drop at 15A, minimizing I²R loss and thermal rise in high-current paths. |
| Current Limit Range | 2A to 15A - set via RILIM (100Ω–1650Ω); ±8% accuracy >5A ensures predictable trip behavior under load variation. |
| OVLO Threshold | 16.9V (rising) - fixed threshold optimized for 15V–16V nominal rails; prevents damage during input surges without external components. |
| Current Monitor Accuracy | ±1.5% (typ, 25°C, IOUT >3A) - enables precise real-time load current telemetry for system health monitoring and diagnostics. |
| Short-Circuit Response | <400ns - detects and disables output before destructive energy accumulates, validated over 1M power-into-short cycles. |
| Junction Temp Range | –15°C to 125°C - qualified for extended industrial and embedded environments with derating guidance in thermal metrics. |
Pinout & Package
TPS259824LNRGER uses a 4mm × 4mm, 24-pin QFN package (RGE) with dual thermal pads (Pad 1 connected to IN, Pad 2 to GND) for optimal heat dissipation and current distribution. Exposed pads must be uniformly soldered to respective PCB planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pins 1,2,3,16, Pad 1) | Power Input | Main high-current input path; thermal pad tied to input plane for thermal and conduction integrity. |
| OUT (Pins 17–24) | Power Output | Eight parallel output terminals reduce trace resistance and improve current sharing into downstream loads. |
| GND (Pins 4,5,14, Pad 2) | Ground Reference | Low-impedance return path; thermal pad tied to ground plane enhances thermal performance and noise immunity. |
| EN/UVLO (Pin 6) | Enable / UVLO Input | Active-high enable with adjustable undervoltage lockout (1.2V threshold); resistor divider sets turn-on voltage. |
| ILIM (Pin 8) | Current Limit Set | Analog input setting both current limit and fast-trip thresholds via external resistor to GND (RILIM). |
| IMON (Pin 9) | Current Monitor Output | Proportional current source (246µA/A typ); converts to voltage with external resistor for ADC interfacing. |
| RETRY_DLY (Pin 10) | Auto-Retry Delay Control | Capacitor-to-GND sets time between fault shutdown and next restart attempt; open = latch-off. |
| NRETRY (Pin 11) | Retry Count Control | Capacitor-to-GND sets number of auto-retries; short to GND = infinite retries. |
| PG (Pin 13) | Power Good Indicator | Open-drain output asserted when FET is fully enhanced and VOUT ≥ VIN – 0.326V; requires external pull-up. |
| dVdt (Pin 15) | Slew Rate Control | Capacitor-to-GND adjusts output ramp rate; open = fastest turn-on (7.4 V/ms at 24V). |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Overcurrent Blanking Timer (ITIMER) | Configurable blanking interval prevents nuisance tripping during inrush or line transients while preserving fast fault response. |
| UL 2367 & IEC 62368 Certified | Recognized for end-equipment safety compliance (File E339631); eliminates need for additional certification effort in final design. |
| Integrated Overtemperature Protection | Thermal shutdown at 150°C with 10°C hysteresis ensures self-protection without external sensors or logic. |
| Programmable Fault Response | Latch-off or auto-retry with user-defined retry count and delay enables remote recovery from temporary faults without manual reset. |
| Immunity to Line Transients | Robust architecture tested against 1 million power-into-short events; no false triggering during ESD or surge events. |
Applications
| PCIe Riser Protection | Server Standby Rail Protection |
|---|---|
Use Scenario: Protects PCIe add-in cards during hot-plug insertion into live backplanes with high-capacitance loads. IC Role / Device Role / Timing Role: Smart eFuse providing inrush current limiting, short-circuit cutoff, and power-good signaling to host controller. Use Value: Prevents bus voltage collapse and host-side damage during plug-in; dV/dt control ensures smooth 12V ramp-up per PCIe spec. |
Use Scenario: Secures always-on 3.3V/5V/12V standby rails in rack-mounted servers where continuous availability is critical. IC Role / Device Role / Timing Role: Active current limiter with 16.9V OVLO guarding against upstream supply faults and brownouts. Use Value: Enables automatic recovery from transient overloads (e.g., fan startup) while latching off for persistent shorts-reducing MTTR. |
| Optical Module Protection | Industrial PC Power Management |
Use Scenario: Safeguards SFP+/QSFP+ modules in routers/switches exposed to cable-induced surges and ESD. IC Role / Device Role / Timing Role: Hot-swap controller with fast-trip (<400ns) and ±1.5% current monitoring for module health reporting. Use Value: Maintains link uptime by surviving repeated transient events; IMON output feeds BMC for predictive maintenance. |
Use Scenario: Powers FPGA, SoC, or I/O expansion slots in rugged IPCs operating in variable ambient conditions. IC Role / Device Role / Timing Role: Programmable eFuse with –15°C to 125°C operation, thermal shutdown, and configurable retry for unattended operation. Use Value: Eliminates field failures due to overtemperature or overcurrent; UL/IEC certifications simplify IPC safety approval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259824ONRGE | Same package and OVLO (16.9V), but configured as circuit breaker (not current limiter); trips and holds off until reset. | Suitable for systems requiring hard disconnect on overcurrent, not sustained current regulation. | Select when fault isolation priority exceeds load continuity; not interchangeable without firmware and timing redesign. |
| TPS25942ARVCR | Lower voltage range (2.7V–18V), 3.5mΩ RON, fixed 14.5V OVLO, no dV/dt control, smaller 3mm × 3mm package. | Better suited for space-constrained 12V applications where 16.9V OVLO headroom is unnecessary. | Choose for cost-sensitive, lower-power designs where 15A rating and 24V capability are not required. |
Compared with TPS259824ONRGE and TPS25942ARVCR, the TPS259824LNRGER uniquely combines 24V operation, 16.9V OVLO, active current limiting, and full configurability of retry behavior and slew rate-making it optimal for high-availability 24V server and telecom infrastructure rails.
Availability
TPS259824LNRGER is available at Aetrix Electronics and suitable for PCIe riser protection, server standby rail management, and optical module safeguarding requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for TPS259824LNRGER 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 with emphasis on reliability, efficiency, and system-level integration.
The TPS25982 family was designed specifically for intelligent hot-swap and power-path protection in datacenter, networking, and industrial equipment-integrating protection, monitoring, and configurability into a single compact device.
FAQ
What is the overvoltage lockout (OVLO) threshold for TPS259824LNRGER?
The TPS259824LNRGER has a fixed rising OVLO threshold of 16.9V (±0.39V over temperature), confirmed in the device comparison table and electrical characteristics section. This value is specific to the "4" variant and differs from TPS259822LNRGE (3.7V) and TPS259823LNRGE (7.6V). The falling threshold is 16.4V, providing hysteresis to prevent oscillation near the trip point.
Does TPS259824LNRGER support active current limiting or only circuit breaker operation?
TPS259824LNRGER is configured as an active current limiter, per the device comparison table. When current exceeds the ILIM threshold, it regulates output current rather than latching off. This behavior is factory-set and cannot be changed to circuit breaker mode-only variants ending in "ONRGE" provide that function.
How is the current limit threshold set on TPS259824LNRGER?
The current limit threshold on TPS259824LNRGER is set using an external resistor (RILIM) connected from Pin 8 (ILIM) to GND. Values from 100Ω to 1650Ω yield limits from ~15A down to ~2A. At RILIM = 100Ω, the typical limit is 14.71A (–40°C to 125°C), with ±8% accuracy for settings above 5A.
What package type and thermal considerations apply to TPS259824LNRGER?
TPS259824LNRGER uses a 4mm × 4mm, 24-pin QFN (RGE) package with two exposed thermal pads: Pad 1 tied to IN and Pad 2 tied to GND. Thermal resistance is RθJA = 34.6°C/W (JEDEC 4-layer board). Proper soldering of both pads to matching copper planes is mandatory to achieve rated 15A current and thermal performance.
Can TPS259824LNRGER be used in systems requiring UL or IEC safety certification?
Yes-TPS259824LNRGER carries UL 2367 Recognition (File E339631) and IEC 62368 CB Certification. These approvals cover the device's internal protection architecture, including overvoltage, overcurrent, and overtemperature functions, reducing end-equipment certification burden for designers.
TPS259824LNRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- -
- Accuracy:
- ±5%
- Voltage - Input:
- 2.7V ~ 24V
- Current - Output:
- 15A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
TPS259824LNRGER FAQ
1.How can I place an order for TPS259824LNRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259824LNRGER 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 TPS259824LNRGER reliable?
The price and inventory of TPS259824LNRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259824LNRGER is usually 5 days.
3.What payment methods are accepted for TPS259824LNRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259824LNRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259824LNRGER?
TPS259824LNRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259824LNRGER 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 TPS259824LNRGER?
For technical support, including TPS259824LNRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259824LNRGER requirements.
6.How does Aetrix verify that TPS259824LNRGER is sourced from the original manufacturer or authorized distributors?
All TPS259824LNRGER 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 TPS259824LNRGER meets industry standards.
7.What is the process for return or replacement of TPS259824LNRGER?
All TPS259824LNRGER units undergo pre-shipment inspection (PSI). If there is an issue with TPS259824LNRGER, 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 TPS259824LNRGER part is unused and in its original packaging.
Return procedure for TPS259824LNRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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