My Inquiry
My Account
Texas Instruments TPS259460ARPWR
- Part No.:
- TPS259460ARPWR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFQFN
- Datasheet:
-
TPS259460ARPWR.pdf
- Description:
- IC ELECTRONIC FUSE 6% 10VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:668
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS259460ARPWR from Texas Instruments is a bidirectional eFuse IC for USB OTG and portable power rail protection, featuring 2.7–23 V input range, 5.5-A continuous current rating, 28.3-mΩ typical RON, adjustable overvoltage lockout (1.2-μs response), and active current limiting with ±10% accuracy above 1 A.
For engineers reviewing the TPS259460ARPWR datasheet, TPS259460ARPWR pinout, TPS259460ARPWR application, or TPS259460ARPWR equivalent, key selection criteria include bidirectional current support, programmable dV/dt slew rate control, integrated load current monitoring (ILM), and auto-retry fault recovery behavior specific to the 'A' variant.
Technical Context
The TPS259460ARPWR implements dual back-to-back MOSFETs enabling true bidirectional conduction during ON state and reverse-current blocking in OFF state-critical for USB OTG host/peripheral role switching. Its protection architecture combines fast-trip short-circuit detection (500 ns), scalable overcurrent threshold (2× ILIM), and adjustable transient blanking via ITIMER capacitor.
Control is analog-based: EN/UVLO and OVLO pins accept resistor dividers for user-defined thresholds; PGTH sets Power Good assertion level; dVdt and ITIMER pins use external capacitors to tune output slew rate and overcurrent blanking interval respectively-no digital interface or configuration registers required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 23 V - supports wide-input portable systems including USB PD, battery-backed rails, and industrial 12/24-V interfaces. |
| Continuous Current Rating | 5.5 A - maximum sustained load current at TJ ≤ 125°C with thermal derating per RθJA = 41.7°C/W on 4-layer PCB. |
| RON (typ.) | 28.3 mΩ - low conduction loss enables <150 mV drop at 5.5 A, minimizing heat generation and voltage sag. |
| Overvoltage Response Time | 1.2 μs (typ.) - cuts off output within 1.2 microseconds of VIN exceeding OVLO threshold, protecting downstream ICs. |
| Current Limit Accuracy | ±10% for ILIM > 1 A - ensures predictable trip point across voltage, temperature, and process variation without calibration. |
| Short-Circuit Response | 500 ns (typ.) - detects and disables output within half a microsecond when OUT shorts to GND, preventing catastrophic failure. |
| Junction Temperature Range | –40°C to +125°C - qualified for automotive cabin, industrial edge, and high-ambient consumer applications. |
Pinout & Package
TPS259460ARPWR uses a 10-pin HotRod QFN package (2 mm × 2 mm, 0.45-mm pitch) with exposed thermal pad for enhanced power dissipation and compact layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | Main input supply connection; accepts 2.7–23 V; feeds internal FETs and bias circuitry. |
| OUT | Power Output | Protected output rail; supports bidirectional current flow when enabled; blocks reverse current when disabled. |
| EN/UVLO | Analog Enable / UVLO Input | Active-high enable with adjustable undervoltage lockout; resistor divider sets turn-on threshold (1.20 V typ. rising). |
| OVLO | Analog Overvoltage Threshold Input | Adjustable overvoltage lockout threshold (1.20 V typ. rising); also functions as active-low enable if pulled low. |
| PG | Digital Power Good Output | Open-drain signal asserted high when power path is fully on and PGTH threshold is exceeded; indicates stable output. |
| PGTH | Analog Power Good Threshold Input | Sets PG assertion voltage level (1.20 V typ. rising); used with external resistor divider to define valid output voltage window. |
| ITIMER | Analog Transient Blanking Timer Output | Capacitor-to-GND sets blanking interval during which peak currents up to 2× ILIM are tolerated before current limiting activates. |
| ILM | Analog Current Limit & Monitor | Resistor-to-GND sets ILIM threshold (0.5–6 A range); pin voltage provides ±6% accurate analog current monitor output. |
| GND | Ground Reference | System ground return for all internal circuits; must be connected to low-impedance PCB ground plane. |
| dVdt | Analog Slew Rate Control Output | Capacitor-to-GND controls output voltage rise time; open = fastest turn-on; larger C = slower, controlled inrush. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional current support | Integrated back-to-back FETs allow forward/reverse conduction during ON state and full reverse-current blocking during OFF state-enabling USB OTG role swap without external diodes or switches. |
| Adjustable overvoltage lockout | User-configurable OVLO threshold via resistor divider on OVLO pin; 1.2-μs response prevents downstream damage from voltage surges or hot-plug transients. |
| Programmable current limit with monitoring | Single RILM resistor sets both ILIM (0.5–6 A) and enables ±6% accurate analog IOUT monitoring-reducing BOM count and eliminating need for separate sense amplifier. |
| Auto-retry fault recovery | After overcurrent or overvoltage fault, device automatically attempts restart after 110-ms cooldown interval-maintaining system availability without manual reset or host intervention. |
| Thermal shutdown with hysteresis | Triggers at 154°C junction temperature with 10°C hysteresis; prevents latch-up and enables safe recovery once temperature falls below 144°C. |
Applications
| USB On-The-Go (OTG) | Smartphone Power Rail Protection |
|---|---|
|
Use Scenario: Bidirectional power delivery between smartphone and peripheral (e.g., camera, keyboard) where either device may act as host or sink. IC Role / Device Role / Timing Role: eFuse providing reverse-current blocking, inrush control, and overcurrent protection during role switch transitions. Use Value: Eliminates need for discrete OR-ing diodes or dual-direction switches while maintaining <150 mV voltage drop and sub-microsecond fault response. |
Use Scenario: Protecting main system rail (e.g., VBUS or PMIC output) from short circuits, overloads, and hot-plug surges in compact mobile designs. IC Role / Device Role / Timing Role: Primary overcurrent and overvoltage protector with programmable dV/dt control to limit inrush into large decoupling banks. Use Value: Enables reliable 5.5-A operation in 4-mm² footprint with ±10% current limit accuracy and 500-ns short-circuit cutoff. |
| Wireless Charging Receiver | Point-of-Sale Terminal Power Management |
|
Use Scenario: Managing power path from wireless receiver coil to battery charging IC or system rail under variable load and thermal conditions. IC Role / Device Role / Timing Role: Bidirectional eFuse ensuring safe energy transfer during charging and reverse-power scenarios (e.g., phone powering accessory). Use Value: Supports 23-V max input for high-efficiency resonant topologies and integrates current monitoring for charge status feedback without extra components. |
Use Scenario: Securing 12-V or 24-V auxiliary power inputs in retail terminals against cable faults, ESD-induced latch-up, and accidental shorts. IC Role / Device Role / Timing Role: Robust front-end protection with UL 2367 recognition and IEC 62368-1 CB certification for safety-critical deployments. Use Value: Delivers certified overvoltage (28-V abs max), overtemperature (154°C shutdown), and short-circuit (500-ns) protection in a single 2-mm QFN. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259461ARPWR | Replaces PG output with SPLYGD (supply good) and FLT (fault) outputs; no PGTH pin; identical protection specs and pinout. | Preferred where discrete fault signaling and input-supply validation are required instead of output-rail Power Good indication. | Select TPS259461ARPWR when system firmware requires independent FLT assertion and SPLYGD status rather than PG-driven sequencing. |
| TPS259421ARPWR | Lower 2.5-A rating, 36-mΩ RON, fixed 1.2-V OVLO threshold, no PG/PGTH, latch-off fault response (no auto-retry). | Suitable for cost-sensitive, lower-current applications where fault persistence is acceptable and auto-retry is unnecessary. | Choose TPS259421ARPWR only for non-critical rails where single-event faults should remain latched until manual reset. |
Compared with TPS259460ARPWR, TPS259461ARPWR offers identical protection performance but replaces PG/PGTH with SPLYGD/FLT for enhanced fault diagnostics, while TPS259421ARPWR trades auto-retry, adjustability, and current capability for lower cost and simpler configuration in less demanding applications.
Availability
TPS259460ARPWR is available at Aetrix Electronics and suitable for USB OTG implementations, smartphone power management, and point-of-sale terminal protection requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for TPS259460ARPWR 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 TPS25946xx family was designed specifically for high-density, bidirectional power path protection in portable and USB-centric systems-emphasizing small footprint, precision current limiting, and robust transient response.
FAQ
What is the absolute maximum input voltage rating for the TPS259460ARPWR?
The TPS259460ARPWR has an absolute maximum input voltage of 28 V on the IN pin, as specified in Section 7.1 Absolute Maximum Ratings. Operation beyond this voltage-even momentarily-may cause permanent damage. The recommended operating range remains 2.7 V to 23 V, and the device will trigger overvoltage lockout before reaching 28 V if OVLO is properly configured.
How does the TPS259460ARPWR support bidirectional current flow?
The TPS259460ARPWR integrates two back-to-back N-channel MOSFETs that allow current to flow from IN to OUT (forward) or OUT to IN (reverse) when enabled. During OFF state, both FETs block conduction in either direction-unlike single-FET eFuses. This architecture is essential for USB OTG applications where power direction reverses dynamically, and the TPS259460ARPWR maintains 28.3-mΩ typical RON in both directions.
Can the TPS259460ARPWR be used without an external ILM resistor?
No-the TPS259460ARPWR requires an external resistor (RILM) connected from the ILM pin to GND to set the overcurrent limit threshold (ILIM). With RILM = 549 Ω, ILIM is configured to 6.068 A (typ.). Leaving ILM floating or unconnected disables current limiting and compromises protection integrity. The same resistor also enables the analog current monitor function.
What is the purpose of the dVdt pin on the TPS259460ARPWR?
The dVdt pin on the TPS259460ARPWR controls output voltage slew rate during turn-on. Connecting a capacitor from dVdt to GND slows the rising edge of VOUT to limit inrush current into large capacitive loads. With no capacitor (pin open), turn-on is fastest (~28.1 V/ms at 12 V); adding 3300 pF reduces slew rate to 0.71 V/ms-allowing precise control of startup stress without external components.
Does the TPS259460ARPWR provide UL or IEC safety certification?
Yes-the TPS259460ARPWR carries UL 2367 recognition (File No. E339631) and IEC 62368-1 CB certification. These certifications validate its suitability for end-equipment requiring compliance with international safety standards, including consumer electronics, point-of-sale terminals, and industrial human-interface devices where fault containment and fire risk mitigation are mandatory.
TPS259460ARPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- High-Side
- Accuracy:
- ±6%
- Voltage - Input:
- 2.7V ~ 23V
- Current - Output:
- 5.5A
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VQFN-HR (2x2)
TPS259460ARPWR FAQ
1.How can I place an order for TPS259460ARPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS259460ARPWR 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 TPS259460ARPWR reliable?
The price and inventory of TPS259460ARPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS259460ARPWR is usually 5 days.
3.What payment methods are accepted for TPS259460ARPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS259460ARPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS259460ARPWR?
TPS259460ARPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS259460ARPWR 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 TPS259460ARPWR?
For technical support, including TPS259460ARPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS259460ARPWR requirements.
6.How does Aetrix verify that TPS259460ARPWR is sourced from the original manufacturer or authorized distributors?
All TPS259460ARPWR 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 TPS259460ARPWR meets industry standards.
7.What is the process for return or replacement of TPS259460ARPWR?
All TPS259460ARPWR units undergo pre-shipment inspection (PSI). If there is an issue with TPS259460ARPWR, 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 TPS259460ARPWR part is unused and in its original packaging.
Return procedure for TPS259460ARPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS259460ARPWR 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…
