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Texas Instruments TPS259827ONRGER
- Part No.:
- TPS259827ONRGER
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS259827ONRGER.pdf
- Description:
- IC CURRENT MONITOR 5% 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,066
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Product details
Overview
TPS259827ONRGER from Texas Instruments is a smart eFuse IC providing integrated hot-swap protection for 2.7V–24V power rails, featuring 2.7mΩ typical RON, ±1.5% accurate current monitoring (IOUT > 3A), circuit breaker response mode, and no overvoltage lockout (OVLO). It delivers robust short-circuit protection with <400ns fast-trip response and supports configurable fault recovery in server standby rail and PCIe add-on card applications.
For engineers reviewing the TPS259827ONRGER datasheet, TPS259827ONRGER pinout, TPS259827ONRGER application, or TPS259827ONRGER equivalent, key selection criteria include its no-OVLO configuration, circuit breaker overcurrent response, adjustable ILIM (2A–15A), thermal shutdown at 150°C, and QFN-24 package compatibility with high-current PCB layout requirements.
Technical Context
The TPS259827ONRGER implements a precision current-limiting circuit breaker with dual-threshold detection: programmable ILIM (via RILIM) and fixed fast-trip at 210% ILIM. Its internal blanking timer (ITIMER) distinguishes transient load surges from hard faults, preventing nuisance tripping during inrush or line transients.
Configuration is fully analog: EN/UVLO sets undervoltage lockout via resistor divider; dVdt controls output slew rate with external capacitor; RETRY_DLY and NRETRY set auto-retry delay and count; LDSTRT enables handshake-based load validation. All fault responses-latch-off or finite/indefinite retry-are user-defined without firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 24V - supports wide-range industrial and datacenter rails; 30V absolute max withstands surge events. |
| RON (typ) | 2.7mΩ - minimizes I²R loss and self-heating at 15A continuous, enabling compact thermal design. |
| Current Limit Range | 2A to 15A (set by RILIM) - covers low-power peripherals to high-current modules with ±8% accuracy above 5A. |
| Current Monitor Accuracy | ±1.5% (typ, 25°C, IOUT > 3A) - enables precise real-time load telemetry without external shunt amplifiers. |
| Fast-Trip Response | <400ns - shuts off output before fault energy damages downstream components during short-circuit events. |
| Overvoltage Lockout | No OVLO - eliminates clamping action, allowing unregulated input operation where upstream regulation is guaranteed. |
| Junction Temp Range | –15°C to 125°C - qualified for industrial and extended-temperature embedded systems with derated current. |
Pinout & Package
TPS259827ONRGER uses a 4mm × 4mm, 24-pin QFN package (RGE) with dual thermal pads (Pad 1 connected to IN, Pad 2 to GND) for optimal power dissipation and current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pins 1,2,3,16, Pad 1) | Power Input | High-current input node; thermal pad must be soldered to input plane for thermal management and current distribution. |
| OUT (Pins 17–24) | Power Output | Eight parallel output pins reduce trace resistance and inductance; supports up to 15A continuous with proper layout. |
| GND (Pins 4,5,14, Pad 2) | System Ground | Low-impedance return path; thermal pad provides additional heat sinking to PCB ground plane. |
| EN/UVLO (Pin 6) | Enable / UVLO Input | Active-high enable with adjustable undervoltage threshold (1.2V typ); resistor divider sets turn-on voltage. |
| ILIM (Pin 8) | Current Limit Set | Connects to GND via resistor (100Ω–1650Ω) to program ILIM from 2A to 15A; also sets fast-trip threshold. |
| IMON (Pin 9) | Current Monitor Output | Sources 246µA/A (typ); convert to voltage with external resistor for analog current readback. |
| 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 sets output rise time; open = fastest slew; larger C = slower, controlled inrush. |
| ITIMER (Pin 7) | Blanking Timer | Capacitor to GND defines overcurrent blanking window; prevents false trips during transient overload. |
| RETRY_DLY (Pin 10) | Auto-Retry Delay | Capacitor to GND sets time between fault shutdown and next auto-retry attempt; tie to GND for latch-off. |
| NRETRY (Pin 11) | Retry Count Control | Capacitor to GND sets number of auto-retries; tie to GND for infinite retries after fault. |
| LDSTRT (Pin 12) | Load Detect Handshake | Capacitor to GND sets handshake timeout; pulled low by load within PG assertion window to maintain ON state. |
Key Features
| Feature | Design Value |
|---|---|
| Circuit Breaker Response Mode | Hard disconnect on overcurrent (vs. active limiting), eliminating sustained fault current and thermal stress on MOSFET. |
| No Overvoltage Lockout (OVLO) | Omits internal OVP cutoff, enabling use in systems with upstream regulated supplies or external OVP supervision. |
| Adjustable Load Transient Blank Time | Configurable ITIMER capacitor allows system-specific tuning to ignore benign inrush while retaining fast fault response. |
| ±1.5% Accurate Current Monitoring | Enables closed-loop load diagnostics and predictive maintenance without calibration or external sensing components. |
| UL 2367 & IEC 62368 Certified | Meets safety standards for end-equipment certification; reduces compliance burden for industrial and consumer OEMs. |
| Thermal Shutdown with 10°C Hysteresis | Shuts down at 150°C junction temp and re-enables only below 140°C, preventing thermal oscillation under overload. |
Applications
| Server Standby Rail Protection | PCIe Riser Card Hot-Swap |
|---|---|
Use Scenario: Protecting 3.3V/5V standby power domains in rack-mounted servers against hot-plug insertion faults and fan module shorts. IC Role / Device Role / Timing Role: Primary circuit breaker enforcing safe power sequencing and isolating faults before they propagate across shared backplane rails. Use Value: Prevents system-wide brownouts during PCIe card insertion and eliminates manual fuse replacement in inaccessible chassis locations. |
Use Scenario: Safely powering PCIe riser cards in modular compute blades where live insertion/extraction occurs without main system shutdown. IC Role / Device Role / Timing Role: Hot-swap controller with programmable dVdt control and load-detect handshake to validate card presence before full power delivery. Use Value: Enables zero-downtime field upgrades and avoids damage from connector arcing or capacitive inrush into unpowered cards. |
| Routers & Optical Module Protection | Industrial PC Power Management |
Use Scenario: Securing 12V power feeds to SFP+/QSFP optical transceivers in carrier-grade routers subject to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Robust fault manager with 1M-cycle short-circuit endurance and line-transient immunity to prevent false trips during EMC events. Use Value: Maintains optical link uptime during electrical disturbances and extends module service life by limiting fault energy. |
Use Scenario: Managing 24V auxiliary rails in DIN-rail mounted IPCs exposed to vibration, temperature cycling, and unregulated input sources. IC Role / Device Role / Timing Role: Integrated protection device combining current limiting, thermal shutdown, and power-good signaling in one footprint. Use Value: Reduces BOM count versus discrete MOSFET + sense + comparator solutions and improves long-term reliability in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259827LNRGE | Same RON, ILIM range, and package; differs only in overcurrent response mode - active current limiter instead of circuit breaker. | Used where sustained overload tolerance is required (e.g., motor startup), not immediate disconnection. | Select TPS259827LNRGE if load can tolerate temporary current limiting; choose TPS259827ONRGER for fail-fast isolation. |
| TPS259421ARVCR | Lower voltage range (2.7V–18V), higher RON (3.5mΩ), fixed 3.7V OVLO, and smaller 3mm × 3mm QFN-16 package. | Targeted at space-constrained edge devices with lower current (<8A) and strict OVLO requirements. | Choose TPS259421ARVCR for compact designs needing UL-certified protection below 18V; retain TPS259827ONRGER for 24V, 15A, no-OVLO needs. |
Compared with TPS259827LNRGE and TPS259421ARVCR, the TPS259827ONRGER uniquely combines no-OVLO operation, circuit breaker behavior, and 15A capability in a thermally optimized 4mm × 4mm QFN - making it optimal for high-reliability 24V hot-swap systems requiring unconditional fault isolation.
Availability
TPS259827ONRGER is available at Aetrix Electronics and suitable for server standby rail protection, PCIe riser card hot-swap, and industrial PC power management requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for TPS259827ONRGER 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 industrial and enterprise system expertise.
The TPS25982 family was designed specifically for high-density, high-reliability hot-swap applications in datacenters and networking equipment, integrating protection, monitoring, and configurability into a single compact IC.
FAQ
What is the overvoltage lockout (OVLO) configuration of the TPS259827ONRGER?
The TPS259827ONRGER has no overvoltage lockout (no-OVLO) functionality. Unlike other variants in the TPS25982 family (e.g., TPS259822ONRGE with 3.7V OVLO), this part omits internal overvoltage cutoff circuitry - allowing operation in systems where input voltage is tightly regulated or externally supervised. This simplifies design when upstream regulation guarantees safe VIN levels.
How does the TPS259827ONRGER implement circuit breaker behavior versus current limiting?
The TPS259827ONRGER operates as a circuit breaker: upon detecting current exceeding the programmed ILIM threshold (or fast-trip at 210% ILIM), it fully disables the internal FET and holds output at 0V until reset via EN toggle or auto-retry sequence. This differs from current-limiter variants (e.g., TPS259827LNRGE), which sustain regulated current flow during overload - making TPS259827ONRGER ideal for fail-safe isolation.
What is the maximum continuous current rating for the TPS259827ONRGER?
The TPS259827ONRGER supports up to 15A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB copper area, and thermal pad soldering). Derating applies at elevated ambient temperatures or reduced airflow; thermal performance is validated per JEDEC 4-layer board with 2oz copper and 3×2 via array.
Can the TPS259827ONRGER be used without an external current-sense resistor?
Yes - the TPS259827ONRGER integrates high-accuracy current monitoring via IMON pin, eliminating need for external shunt resistors. IMON sources 246µA/A (typ) proportional to load current; a simple resistor-to-ground converts this to measurable voltage. External sensing is optional only for ultra-high-precision applications beyond ±1.5% spec.
What safety certifications apply to the TPS259827ONRGER?
The TPS259827ONRGER carries UL 2367 Recognition (File E339631, requiring RILIM ≥ 182Ω) and IEC 62368 CB Certification. These approvals validate its suitability in end equipment requiring safety agency compliance - including industrial PCs, network infrastructure, and commercial servers - without requiring additional component-level safety testing.
TPS259827ONRGER 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)
TPS259827ONRGER FAQ
1.How can I place an order for TPS259827ONRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259827ONRGER 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 TPS259827ONRGER reliable?
The price and inventory of TPS259827ONRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259827ONRGER is usually 5 days.
3.What payment methods are accepted for TPS259827ONRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259827ONRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259827ONRGER?
TPS259827ONRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259827ONRGER 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 TPS259827ONRGER?
For technical support, including TPS259827ONRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259827ONRGER requirements.
6.How does Aetrix verify that TPS259827ONRGER is sourced from the original manufacturer or authorized distributors?
All TPS259827ONRGER 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 TPS259827ONRGER meets industry standards.
7.What is the process for return or replacement of TPS259827ONRGER?
All TPS259827ONRGER units undergo pre-shipment inspection (PSI). If there is an issue with TPS259827ONRGER, 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 TPS259827ONRGER part is unused and in its original packaging.
Return procedure for TPS259827ONRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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