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Texas Instruments TPS2041DR
- Part No.:
- TPS2041DR
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2041DR.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,359
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Product details
Overview
TPS2041DR from Texas Instruments is a 500 mA continuous, 135 mΩ (at 5 V) N-channel high-side power distribution switch with active-low enable, integrated short-circuit and thermal protection, and overcurrent logic output (OC). It operates from 2.7 V to 5.5 V input and delivers controlled 2.5-ms rise time for USB port power management in host/hub applications.
For engineers reviewing the TPS2041DR datasheet, TPS2041DR pinout, TPS2041DR application, or TPS2041DR equivalent, key selection criteria include its 500 mA continuous current rating, active-low enable logic, SOIC-8 (D) package with tape-and-reel availability (R suffix), and integrated OC reporting for USB-compliant hot-swap systems.
Technical Context
The TPS2041DR integrates an internal charge pump enabling gate drive above source voltage - critical for reliable N-channel MOSFET operation down to 2.7 V input. Its driver circuit enforces controlled 2.5-ms (typ) rise/fall times to suppress inrush current and EMI during hot-plug events.
Current limiting is implemented via a sense FET (not external resistor), delivering precise 0.9-A short-circuit threshold at 25°C with automatic transition into constant-current mode. Thermal shutdown activates at ~140°C junction temperature, with ~20°C hysteresis for self-recovery under sustained overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 500 mA - supports full USB 1.x/2.0 bus-powered function loads without derating at TA = 85°C |
| RDS(on) (5 V) | 135 mΩ max - yields ≤67.5 mV dropout at 500 mA, minimizing power loss and heat generation |
| Enable Logic | Active-low - directly interfaces with USB controller GPIOs asserting low to enable VBUS delivery |
| Rise Time | 2.5 ms typical - limits inrush di/dt to comply with USB 2.0 hot-plug inrush requirements (≤44 Ω + 10 µF) |
| OC Output | Open-drain, active-low - provides direct interrupt signal to USB controller on overcurrent or thermal fault |
| UVLO Threshold | ~2.0 V - ensures switch remains off until input stabilizes, preventing erratic behavior during brownout or hot-insertion |
| Standby Current | 10 µA max - enables ultra-low-power disable state for system-level power gating |
Pinout & Package
TPS2041DR is packaged in an 8-pin SOIC (D package), tape-and-reel format (R suffix), with 1.27 mm pitch and standard JEDEC MS-012AC footprint. Thermal resistance θJA = 172°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Power ground reference | Common return path for internal charge pump, driver, and thermal sense circuits |
| 2,3 (IN) | Input voltage supply | Dual-pin configuration reduces trace inductance and IR drop for high-current 2.7–5.5 V input |
| 4 (EN) | Enable control input | Active-low TTL/CMOS-compatible signal; pulls internal bias offline when high, reducing IQ to ≤10 µA |
| 5 (OC) | Overcurrent fault indicator | Open-drain output asserted low during current-limit or thermal shutdown; requires external pull-up |
| 6,7,8 (OUT) | Switched power output | Three parallel pins minimize conduction loss and thermal stress at 500 mA continuous load |
Key Features
| Feature | Design Value |
|---|---|
| Integrated charge pump | Enables full N-MOSFET gate drive from 2.7 V input - no external components required for low-voltage operation |
| Controlled slew-rate switching | 2.5-ms rise time inherently limits inrush di/dt, eliminating need for external soft-start RC networks |
| Sense-FET current monitoring | Replaces lossy shunt resistors - maintains <135 mΩ RDS(on) while enabling accurate 0.9-A trip threshold |
| Thermal hysteresis recovery | Auto-restarts after ~20°C cooldown - sustains fault reporting without manual reset in intermittent overload scenarios |
| USB-compliant UVLO | Locks out switching below ~2.0 V - guarantees clean power-up sequencing and prevents glitch-induced enumeration failure |
Applications
| USB Host Port Protection | Self-Powered Hub Power Switching |
|---|---|
|
Use Scenario: Desktop PC motherboard providing 5-V VBUS to downstream USB Type-A ports. IC Role / Device Role / Timing Role: High-side power switch enabling/disabling VBUS per port under USB controller command. Use Value: Prevents backfeed, enforces inrush compliance (<44 Ω + 10 µF), and reports overcurrent to host OS via OC pin. |
Use Scenario: Standalone USB hub with local 5-V supply powering four downstream ports. IC Role / Device Role / Timing Role: Individual port power gate with independent OC fault signaling to hub controller. Use Value: Enables per-port current limiting and hot-swap-safe power sequencing without discrete FET + sense + logic. |
| High-Power Bus-Powered Function | Industrial Hot-Swap Module |
|
Use Scenario: External USB webcam drawing up to 500 mA after enumeration. IC Role / Device Role / Timing Role: Inrush-limited VBUS switch activated post-enumeration by host. Use Value: Meets USB spec requirement for <100 mA power-up draw, then scales to full 500 mA with controlled ramp. |
Use Scenario: 24-V DC-powered industrial I/O module requiring field-replaceable subcards. IC Role / Device Role / Timing Role: High-side switch isolating subcard power rail during insertion/removal. Use Value: Prevents arcing and system brownout via 2.5-ms soft-start and 0.9-A current limiting during card mating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2041D | Same die, SOIC-8 package without tape-and-reel (non-R suffix); identical electrical specs and pinout | No difference in circuit design; only packaging and logistics distinction | Select TPS2041D for prototype builds or small-batch hand assembly where reel format is unnecessary |
| TPS2051DR | Identical package and protection features, but active-high enable logic instead of active-low | Requires inverted control signal routing; not drop-in compatible without firmware or logic change | Choose TPS2051DR only when system GPIOs are constrained to active-high drive or require synchronous multi-switch enable |
Compared with TPS2041D, the TPS2041DR offers identical performance with optimized logistics for automated SMT placement; compared with TPS2051DR, it avoids level-shifting overhead in active-low control architectures common in USB host controllers.
Availability
TPS2041DR is available at Aetrix Electronics and suitable for USB host port protection, self-powered hub power switching, high-power bus-powered functions, and industrial hot-swap modules requiring stable component supply across production lifecycles.
Supply support for TPS2041DR 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 connectivity technologies with decades of power management innovation.
The TPS2041DR belongs to TI's power-distribution switch family, engineered specifically for USB-compliant hot-plug power control with integrated current limiting, thermal protection, and fault reporting - targeting host, hub, and peripheral designs.
FAQ
What is the maximum continuous output current rating for the TPS2041DR?
The TPS2041DR is rated for 500 mA continuous output current across its full operating ambient temperature range of –40°C to 85°C. This rating is validated under recommended conditions (VI(IN) = 2.7 V to 5.5 V) and accounts for thermal derating in the SOIC-8 package - ensuring reliable operation without external heatsinking in typical USB applications.
Does the TPS2041DR support 3.3-V logic-level enable inputs?
Yes, the TPS2041DR accepts 3.3-V logic-level signals on its EN pin. Its enable input is TTL/CMOS-compatible with VIL ≤ 0.4 V (for 2.7–4.5 V input) and VIH ≥ 2.0 V, allowing direct interfacing with 3.3-V microcontrollers and USB controllers without level translation.
How does the TPS2041DR implement overcurrent protection?
The TPS2041DR uses an integrated sense FET - not an external resistor - to monitor load current. When current exceeds ~0.9 A at 25°C, it enters constant-current mode, clamping output current while reducing output voltage. Simultaneously, it asserts the open-drain OC pin low to signal the host controller.
Is the TPS2041DR RoHS compliant and lead-free?
Yes, the TPS2041DR is manufactured in accordance with RoHS Directive 2011/65/EU and is lead-free. The SOIC-8 (D) package uses matte tin lead finish and complies with JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3), supporting standard reflow profiles.
Can the TPS2041DR be used in 2.7-V battery-powered applications?
Yes, the TPS2041DR operates down to 2.7 V input and maintains full functionality including charge pump operation, 500 mA current capability, and 2.5-ms rise time. Its 10 µA standby current and undervoltage lockout (~2.0 V) make it suitable for Li-ion or dual-cell alkaline battery systems with regulated 2.7–5.5 V rails.
TPS2041DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 500mA
- Rds On (Typ):
- 80mOhm
- Input Type:
- Inverting
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS2041DR FAQ
1.How can I place an order for TPS2041DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2041DR 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 TPS2041DR reliable?
The price and inventory of TPS2041DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2041DR is usually 5 days.
3.What payment methods are accepted for TPS2041DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2041DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2041DR?
TPS2041DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2041DR 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 TPS2041DR?
For technical support, including TPS2041DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2041DR requirements.
6.How does Aetrix verify that TPS2041DR is sourced from the original manufacturer or authorized distributors?
All TPS2041DR 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 TPS2041DR meets industry standards.
7.What is the process for return or replacement of TPS2041DR?
All TPS2041DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2041DR, 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 TPS2041DR part is unused and in its original packaging.
Return procedure for TPS2041DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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