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Texas Instruments TPS2041BDBVTG4
- Part No.:
- TPS2041BDBVTG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS2041BDBVTG4.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
TPS2041BDBVTG4 from Texas Instruments is a single-channel, current-limited power-distribution switch featuring a 70mΩ high-side N-channel MOSFET, 500mA continuous output current, thermal and short-circuit protection, and operation across 2.7V–5.5V input range. It serves as a smart load switch in USB-powered peripherals and embedded systems requiring controlled inrush current management.
For engineers reviewing the TPS2041BDBVTG4 datasheet, TPS2041BDBVTG4 pinout, TPS2041BDBVTG4 application, or TPS2041BDBVTG4 equivalent, key selection considerations include its accurate 0.75A–1.25A current-limit threshold, 0.6ms typical rise time, undervoltage lockout (2.0V–2.6V), deglitched OC fault reporting, and ultra-low 1μA standby supply current - all critical for reliable hot-swap and load-protection designs.
Technical Context
The TPS2041BDBVTG4 integrates an internal charge pump to drive the high-side MOSFET gate, enabling full enhancement down to 2.7V input without external components. Its constant-current limiting mode activates when load current exceeds the threshold, clamping output current while asserting an open-drain OC signal.
Thermal shutdown triggers at 135°C junction temperature and recovers automatically at 125°C with 10°C hysteresis. Undervoltage lockout prevents operation below valid input voltage, and the deglitched OC output eliminates false fault assertions during power-up transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 500 mA - maximum sustained load current before thermal or current-limit activation |
| Current-Limit Threshold | 0.75 A min / 1.25 A max - precise overcurrent trip window enabling predictable fault response |
| RDS(on) | 70 mΩ (typ) at 5 V - low conduction loss minimizing power dissipation and voltage drop |
| Rise Time (tr) | 0.6 ms (typ) - controlled turn-on slew rate limits inrush current into heavy capacitive loads |
| Input Voltage Range | 2.7 V to 5.5 V - supports USB 2.0/3.0, Li-ion battery, and 3.3V/5V system rails |
| Standby Supply Current | 1 μA - enables always-on power control without significant battery drain |
| Operating Temperature | –40°C to +85°C ambient - suitable for industrial and consumer-grade embedded environments |
Pinout & Package
SOT-23 (5-pin) package: 2.90 mm × 1.60 mm body, thermally enhanced with PowerPAD™ internally connected to GND for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power input | Connects to 2.7–5.5 V supply rail; feeds internal charge pump and high-side switch |
| OUT | Switched power output | Delivers current-limited, protected power to downstream load (e.g., USB port, sensor module) |
| EN | Enable input | Active-high logic control (VIH ≥ 2 V); turns on high-side MOSFET when asserted |
| OC | Open-drain fault output | Active-low signal indicating current limit or thermal shutdown; requires external pull-up |
| GND | Ground reference | System ground return; also connects to PowerPAD™ for thermal conduction to PCB |
Key Features
| Feature | Design Value |
|---|---|
| 70mΩ RDS(on) MOSFET | Reduces conduction loss to <150 mW at 500 mA, minimizing self-heating and voltage droop |
| Accurate current limit (0.75–1.25 A) | Enables consistent fault response across temperature and supply voltage without calibration |
| Deglitched OC output | 4–15 ms fault debounce prevents false triggering during transient load events or startup |
| Internal charge pump | Eliminates need for external boost components while supporting 2.7V minimum input operation |
| UL Recognized (E169910) | Validates safety compliance for end-equipment certification in commercial and industrial applications |
Applications
| USB Peripheral Port Protection | Industrial Sensor Node Power Control |
|---|---|
Use Scenario: Protecting downstream USB devices (e.g., HID peripherals, flash drives) from short circuits and inrush surges during hot-plug events. IC Role / Device Role / Timing Role: Single-channel high-side load switch managing power delivery and fault isolation on a 5V USB bus. Use Value: Prevents host port damage by limiting fault current to ≤1.25 A and asserting OC within milliseconds. |
Use Scenario: Enabling/disabling power to remote analog sensors or wireless transceivers in battery-operated IIoT nodes. IC Role / Device Role / Timing Role: Low-quiescent-power load switch providing controlled power sequencing and wake-up capability. Use Value: 1μA standby current extends battery life; accurate current limit avoids nuisance trips during sensor startup transients. |
| Embedded System Hot-Swap Module | Capacitor-Charging Inrush Limiter |
Use Scenario: Safely inserting/removing daughterboards or field-replaceable modules in 3.3V/5V backplane systems. IC Role / Device Role / Timing Role: Controlled power ramp generator with rise time of 0.6ms to limit dI/dt during insertion. Use Value: Prevents system voltage sag and upstream supply overload during hot-swap events. |
Use Scenario: Charging large bulk capacitance (e.g., 100–470 µF) on FPGA or microcontroller power rails without tripping upstream fuses. IC Role / Device Role / Timing Role: Constant-current source during capacitor charging phase, transitioning to low-RDS(on) conduction after voltage stabilizes. Use Value: Limits peak inrush to ≤1.25 A regardless of CLOAD size, eliminating need for NTC thermistors or discrete timers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDBVR | Same SOT-23-5 package and pinout; active-high EN; identical 500mA rating but higher 95mΩ RDS(on) (DBV package) | Designed for same USB/sensor use cases; slightly higher conduction loss increases thermal stress at full load | Acceptable alternative where margin exists for voltage drop and thermal rise; verify OC timing compatibility |
| AP2171WG-7 | Single-channel, 500mA, 75mΩ RDS(on), 2.7–5.5V, active-high EN, 1.5μA quiescent current - no UL recognition | Lacks UL E169910 listing; OC output not deglitched; no thermal shutdown hysteresis spec | Use only in non-safety-certified consumer designs; requires external fault debouncing and thermal monitoring |
Compared with TPS2041BDBVTG4, TPS2051BDBVR offers identical form-factor and function but trades lower RDS(on) for higher current-limit accuracy, while AP2171WG-7 sacrifices safety certification and robust fault handling for cost-sensitive volume applications.
Availability
TPS2041BDBVTG4 is available at Aetrix Electronics and suitable for USB peripheral protection, industrial sensor node power control, and embedded hot-swap module applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2041BDBVTG4 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 expertise in high-reliability power-switching solutions.
The TPS20xxB family was designed specifically for robust, current-limited power distribution in USB, portable, and industrial systems - prioritizing fault resilience, low quiescent power, and seamless integration without external components.
FAQ
What is the exact RDS(on) value for TPS2041BDBVTG4 under 5V operation?
The TPS2041BDBVTG4 specifies a typical RDS(on) of 70 mΩ at 5 V input, with a maximum of 135 mΩ across –40°C to +125°C junction temperature. This value applies to D and DGN packages; the DBV (SOT-23) variant has a slightly higher typical RDS(on) of 95 mΩ per TI's Electrical Characteristics table.
Does TPS2041BDBVTG4 support active-low enable logic?
No - the TPS2041BDBVTG4 uses active-high enable logic. The EN pin requires ≥2 V to turn on the internal high-side MOSFET. For active-low control, an external inverter or logic-level translator is required. This differs from the TPS2042B/TPS2043B variants which offer selectable enable polarity depending on package and suffix.
How does the OC pin behave during thermal shutdown?
During thermal shutdown, the TPS2041BDBVTG4 asserts the OC pin low - identical to its behavior during current-limit events. The OC output is not differentiated between overcurrent and thermal faults; both conditions result in an active-low open-drain signal requiring external pull-up for proper logic-level interpretation.
Is TPS2041BDBVTG4 UL-recognized, and what is the file number?
Yes, the TPS2041BDBVTG4 is UL Recognized under File Number E169910. This certification covers the device's safety performance for use in end equipment complying with UL/CSA 62368-1 and related standards, confirming insulation, flammability, and fault withstand capability.
What is the minimum input voltage required for reliable operation of TPS2041BDBVTG4?
The TPS2041BDBVTG4 operates reliably down to 2.7 V, with undervoltage lockout (UVLO) releasing at 2.0 V (min) to 2.6 V (max) depending on temperature. Below this threshold, the device remains disabled to prevent erratic switching or incomplete MOSFET enhancement.
TPS2041BDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 95mOhm
- 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:
- SOT-23-5
TPS2041BDBVTG4 FAQ
1.How can I place an order for TPS2041BDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2041BDBVTG4 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 TPS2041BDBVTG4 reliable?
The price and inventory of TPS2041BDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2041BDBVTG4 is usually 5 days.
3.What payment methods are accepted for TPS2041BDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2041BDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2041BDBVTG4?
TPS2041BDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2041BDBVTG4 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 TPS2041BDBVTG4?
For technical support, including TPS2041BDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2041BDBVTG4 requirements.
6.How does Aetrix verify that TPS2041BDBVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS2041BDBVTG4 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 TPS2041BDBVTG4 meets industry standards.
7.What is the process for return or replacement of TPS2041BDBVTG4?
All TPS2041BDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2041BDBVTG4, 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 TPS2041BDBVTG4 part is unused and in its original packaging.
Return procedure for TPS2041BDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS2041BDBVTG4 Tags
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