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Texas Instruments TPS2041BDBVT
- Part No.:
- TPS2041BDBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS2041BDBVT.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,870
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Product details
Overview
TPS2041BDBVT 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 from 2.7V to 5.5V. It serves as a smart load switch in USB-powered peripherals and embedded systems requiring controlled power sequencing and inrush current limiting.
For engineers reviewing the TPS2041BDBVT datasheet, TPS2041BDBVT pinout, TPS2041BDBVT application, or TPS2041BDBVT equivalent, key selection criteria include its accurate 0.75A–1.25A current-limit threshold, 0.6ms typical rise time, 1μA standby supply current, undervoltage lockout (2.0–2.6V), and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TPS2041BDBVT 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 trip threshold, pulling the open-drain OC pin low to signal fault conditions.
Thermal shutdown engages at 135°C junction temperature and recovers automatically at 125°C with 10°C hysteresis. The deglitched OC output prevents false triggering during power-up and transient events, with a 4–15ms deglitch window confirmed across operating conditions.
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 - ensures robust short-circuit protection across temperature and voltage |
| rDS(on) | 70 mΩ (typ) at 5 V - low conduction loss enables <150 mW dissipation at 500 mA |
| Rise Time | 0.6 ms (typ) at 5.5 V - controls inrush surge into heavy capacitive loads (e.g., 100 µF) |
| Supply Voltage Range | 2.7 V to 5.5 V - supports USB 2.0/3.0 bus, Li-ion battery, and 3.3 V/5 V logic domains |
| Standby Supply Current | 1 μA - enables ultra-low-power system sleep states without compromising switch readiness |
| Operating Temperature | –40°C to +85°C ambient - qualified for industrial and consumer-grade embedded applications |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size), thermally enhanced with PowerPAD™ internally connected to GND for board-level heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | High-side switch source connection; accepts 2.7–5.5 V supply with UVLO protection |
| OUT | Switched Output | Drain of internal N-MOSFET; delivers current-limited power to downstream load |
| EN | Enable Input | Active-high logic control (VIH ≥ 2 V); enables/disables power path with no external pull-up required |
| OC | Open-Drain Fault Flag | Active-low overcurrent indicator; deglitched to avoid noise-induced false trips |
| GND | Ground Reference | Power and signal return; tied to PowerPAD™ for thermal performance and EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Charge Pump | Enables full MOSFET enhancement from 2.7 V input-no external gate-drive components needed |
| Accurate Current Limit | Guaranteed 0.75–1.25 A trip range minimizes design margin while ensuring reliable short-circuit response |
| No OC Glitch During Power-Up | Internal deglitching eliminates false fault reporting during supply ramp, simplifying system initialization |
| UL Recognition (E169910) | Meets UL 60950-1 requirements for end-equipment safety certification without additional isolation |
| Thermal Shutdown Recovery | Automatic restart after cooling to 125°C avoids manual reset or system intervention during overload events |
Applications
| USB Peripheral Power Switching | Industrial Sensor Node Protection |
|---|---|
Use Scenario: Isolating USB-powered devices (e.g., HID keyboards, serial adapters) from host port during hot-plug or fault events. IC Role / Device Role: Single-channel high-side load switch managing power delivery and fault signaling to host microcontroller. Use Value: Prevents bus voltage collapse during inrush or short, maintains USB compliance via controlled rise/fall times and OC reporting. | Use Scenario: Protecting 3.3 V sensor modules (e.g., pressure, temperature) from field wiring faults in factory automation. IC Role / Device Role: Local power switch with thermal and overcurrent protection, interfaced to PLC I/O controller. Use Value: Eliminates need for discrete fuses and relays; enables remote fault diagnosis via OC pin and automatic recovery. |
| Embedded System Power Sequencing | Portable Medical Device Load Control |
Use Scenario: Enabling subsystem power (e.g., display backlight, SD card interface) only after core logic stabilizes. IC Role / Device Role: Controlled power rail enable with precise timing and current monitoring. Use Value: Reduces risk of latch-up or brown-out by decoupling startup surges; 1 μA quiescent current preserves battery life. | Use Scenario: Safely powering patient-connected analog front-end circuits (e.g., ECG amplifiers) from Li-ion battery. IC Role / Device Role: Isolated, current-limited power path with fail-safe shutdown on overload or overtemperature. Use Value: Meets IEC 60601-1 creepage/clearance and fault-safety requirements without auxiliary protection circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDBVT | Same SOT-23-5 package and pinout; active-high EN but identical current limit (0.75–1.25 A), rDS(on) (95–140 mΩ), and UVLO (2.0–2.6 V) | Designed for ganged multi-switch configurations with shared OC reporting; not intended for standalone use | Select TPS2051BDBVT only if coordinating multiple switches under common fault management |
| AP2171SG-13 | 500 mA rating, 120 mΩ rDS(on), 2.7–5.5 V range, but lacks deglitched OC output and UL recognition | Targeted at cost-sensitive consumer electronics where safety certification and noise immunity are secondary | Choose AP2171SG-13 for non-safety-critical, high-volume applications where BOM cost outweighs diagnostic reliability |
Compared with TPS2041BDBVT, TPS2051BDBVT offers identical packaging and electrical specs but adds ganged-control capability at the expense of standalone simplicity, while AP2171SG-13 trades diagnostic robustness and safety compliance for lower unit cost.
Availability
TPS2041BDBVT is available at Aetrix Electronics and suitable for USB peripheral power switching, industrial sensor node protection, and embedded system power sequencing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2041BDBVT 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 for industrial, automotive, and personal electronics markets.
The TPS20xxB family was designed specifically for robust, low-risk power distribution in systems exposed to heavy capacitive loads and accidental shorts-emphasizing fault visibility, thermal resilience, and plug-and-play integration.
FAQ
What is the maximum continuous output current rating for the TPS2041BDBVT?
The TPS2041BDBVT is rated for 500 mA continuous output current under recommended operating conditions (–40°C to +85°C ambient, 2.7 V to 5.5 V input). This rating reflects sustained conduction capability before thermal shutdown or current-limit activation occurs. Exceeding this value triggers constant-current limiting, with actual trip threshold ranging from 0.75 A to 1.25 A depending on junction temperature and input voltage.
Does the TPS2041BDBVT require external components for gate drive or fault filtering?
No, the TPS2041BDBVT integrates a charge pump for high-side MOSFET gate drive and internal deglitching for the OC output-both functions operate without external components. A 0.1 µF bypass capacitor on IN is recommended per TI layout guidelines, but no gate resistors, pull-ups, or RC filters are required for basic operation or noise immunity.
How does the undervoltage lockout (UVLO) function in the TPS2041BDBVT?
The TPS2041BDBVT disables the power switch when input voltage falls below 2.0 V (rising threshold) or 2.6 V (falling threshold), with 75 mV hysteresis. This prevents erratic switching near minimum supply levels and ensures clean turn-on/turn-off behavior. UVLO is fully internal-no external resistor divider or configuration is needed.
Can the TPS2041BDBVT be used in battery-powered applications with strict quiescent current requirements?
Yes-the TPS2041BDBVT draws only 1 μA of supply current when disabled (EN = low), making it suitable for battery-backed systems requiring ultra-low standby power. This specification is guaranteed across –40°C to +125°C junction temperature and applies regardless of input voltage within the 2.7–5.5 V range.
Is the TPS2041BDBVT UL-recognized, and what does that mean for end-equipment certification?
Yes, the TPS2041BDBVT carries UL Recognition under File E169910 per UL 60950-1. This means the device itself has been evaluated for safety-reducing the burden on end-equipment designers to validate internal power-switching components. It supports faster system-level certification when used in IT equipment, medical peripherals, or industrial controllers.
TPS2041BDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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
TPS2041BDBVT FAQ
1.How can I place an order for TPS2041BDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2041BDBVT 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 TPS2041BDBVT reliable?
The price and inventory of TPS2041BDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2041BDBVT is usually 5 days.
3.What payment methods are accepted for TPS2041BDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2041BDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2041BDBVT?
TPS2041BDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2041BDBVT 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 TPS2041BDBVT?
For technical support, including TPS2041BDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2041BDBVT requirements.
6.How does Aetrix verify that TPS2041BDBVT is sourced from the original manufacturer or authorized distributors?
All TPS2041BDBVT 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 TPS2041BDBVT meets industry standards.
7.What is the process for return or replacement of TPS2041BDBVT?
All TPS2041BDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS2041BDBVT, 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 TPS2041BDBVT part is unused and in its original packaging.
Return procedure for TPS2041BDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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