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Texas Instruments TPS2041BDGNG4
- Part No.:
- TPS2041BDGNG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2041BDGNG4.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,381
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Product details
Overview
TPS2041BDGNG4 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 fault isolation.
For engineers reviewing the TPS2041BDGNG4 datasheet, TPS2041BDGNG4 pinout, TPS2041BDGNG4 application, or TPS2041BDGNG4 equivalent, key selection criteria include its accurate 0.75A–1.25A current-limit threshold, 0.6ms typical rise time, undervoltage lockout (2.0–2.6V), deglitched OC reporting, and 1μA standby supply current - all critical for reliable hot-swap and inrush management in space-constrained 5V rail designs.
Technical Context
The TPS2041BDGNG4 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 activates when load current exceeds the specified threshold, pulling the open-drain OC pin low to signal fault conditions.
Thermal shutdown engages at 135°C junction temperature with 10°C hysteresis, and automatic recovery occurs after cooling to 125°C. Undervoltage lockout prevents switching below valid input voltage, and the deglitched OC output eliminates false triggers during power-up transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 500 mA - supports sustained loads such as USB peripherals, sensors, or small actuators without derating at 25°C ambient. |
| Current Limit Threshold | 0.75 A min / 1.25 A max - provides precise overcurrent protection with minimal trip variation across temperature and voltage. |
| RDS(on) | 70 mΩ (typ) at 5 V - minimizes conduction loss (≤17.5 mW at 500 mA), reducing thermal stress and PCB footprint requirements. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion, 3.3V logic rails, and standard 5V USB power buses. |
| Rise Time | 0.6 ms (typ) - controls inrush current into heavy capacitive loads (e.g., 100 µF downstream), preventing supply droop and bus reset. |
| Standby Supply Current | 1 µA - enables ultra-low-power system sleep modes without compromising fast wake-up capability. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and extended-temperature embedded applications. |
Pinout & Package
TPS2041BDGNG4 is packaged in an 8-pin HVSSOP (DGN) package measuring 3.00 mm × 3.00 mm with exposed thermal pad. The package supports efficient heat dissipation via PowerPAD™ connected internally to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for power and logic; must be connected to PCB ground plane and PowerPAD™ for thermal and electrical integrity. |
| IN | Power input | Accepts 2.7–5.5 V supply; feeds internal charge pump and high-side switch; requires local 0.1 µF decoupling. |
| EN | Enable input | Active-high logic control (VIH ≥ 2 V); enables/disables output with no external pull-up required. |
| OUT | Switched power output | Drives load; features controlled slew rate to limit inrush; connects directly to downstream capacitance or load. |
| OC | Open-drain fault indicator | Active-low overcurrent signal; requires external pull-up; debounced (4–15 ms deglitch) to reject noise and startup transients. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated charge pump | Enables full MOSFET enhancement from 2.7V input - eliminates need for external boost circuitry or higher-voltage rails. |
| Accurate current limit | Guaranteed 0.75–1.25A window ensures predictable fault response across voltage, temperature, and process variation. |
| Thermal shutdown with hysteresis | Shuts off at 135°C and recovers at 125°C - prevents latch-up and enables autonomous fault recovery in sealed enclosures. |
| Undervoltage lockout (UVLO) | Prevents erratic switching below 2.0–2.6V - ensures clean enable/disable behavior during brown-out or battery discharge. |
| De-glitched OC output | 4–15 ms filtering rejects transient overloads (e.g., capacitor charging spikes), avoiding false system-level fault assertions. |
Applications
| USB Peripheral Power Switching | Industrial Sensor Node Protection |
|---|---|
Use Scenario: Hot-plug USB devices (e.g., HID keyboards, serial adapters) powered from a shared 5V rail. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery and isolating faults to prevent host port shutdown. Use Value: Prevents bus reset due to inrush or short circuits; OC pin signals faults to MCU for graceful error handling. | Use Scenario: Remote sensor nodes with long cables susceptible to ESD-induced shorts or moisture-related leakage. IC Role / Device Role / Timing Role: Fault-tolerant power gate between microcontroller and analog front-end or transducer. Use Value: Limits fault current to safe levels (<1.25A), avoids damage to sensitive ADCs or signal conditioning circuitry. |
| Embedded System Power Sequencing | Point-of-Load Inrush Control |
Use Scenario: Multi-rail embedded controller (e.g., ARM Cortex-M) powering auxiliary modules (Wi-Fi, display backlight) on demand. IC Role / Device Role / Timing Role: Controlled power enable element synchronized with firmware boot sequence. Use Value: Enables deterministic power-up timing (0.6ms rise) and eliminates cross-talk between subsystems sharing same supply. | Use Scenario: FPGA or SoC I/O banks requiring staged 3.3V/2.5V power-up to avoid excessive inrush into large decoupling networks. IC Role / Device Role / Timing Role: Soft-start switch limiting peak current during bulk capacitor charging. Use Value: Reduces peak input current by >70% vs direct connection - maintains stable upstream DC/DC converter regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2041BDR | Same electrical specs; SOIC-8 package (4.90 × 3.91 mm), higher RθJA (119.3°C/W) than DGN (53.6°C/W). | Less thermally efficient in compact layouts; suitable where board area is less constrained than thermal budget. | Select TPS2041BDR only if SOIC footprint compatibility is required and thermal margin permits. |
| TPS2051BDGNR | Pin-compatible variant with active-high EN and identical DGN package; differs in enable polarity and OC assertion timing per family revision. | Requires firmware logic inversion on EN signal; OC behavior matches TPS205xB series timing profiles. | Choose TPS2051BDGNR only when migrating to TI's newer enable-polarity standard and verifying OC timing in system fault response. |
Compared with TPS2041BDGNG4, TPS2041BDR offers legacy SOIC compatibility but sacrifices thermal performance, while TPS2051BDGNR maintains identical packaging and footprint but mandates enable-signal rework and OC timing validation - making TPS2041BDGNG4 optimal for new designs prioritizing thermal efficiency and known enable polarity.
Availability
TPS2041BDGNG4 is available at Aetrix Electronics and suitable for USB peripheral power management, industrial sensor node protection, and embedded system power sequencing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2041BDGNG4 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 product line was designed specifically for robust, current-limited power distribution in USB-compliant and industrial embedded systems - emphasizing fault resilience, low quiescent current, and seamless integration with microcontroller-based supervision.
FAQ
What is the maximum continuous output current rating for the TPS2041BDGNG4?
The TPS2041BDGNG4 is rated for 500 mA continuous output current under recommended operating conditions (TJ ≤ 125°C). This rating applies across the full input voltage range (2.7 V to 5.5 V) and ambient temperature range (–40°C to +85°C), with thermal derating required above 85°C ambient depending on PCB layout and airflow.
Does the TPS2041BDGNG4 require external components to operate?
No, the TPS2041BDGNG4 requires only two external capacitors: a 0.1 µF ceramic capacitor between IN and GND for input decoupling, and optionally a pull-up resistor on the OC pin. Its integrated charge pump eliminates the need for external boost circuitry, enabling full functionality from a single 2.7–5.5 V supply.
How does the overcurrent (OC) pin behave during a short-circuit event on the TPS2041BDGNG4?
During a short circuit, the TPS2041BDGNG4 enters constant-current mode and pulls the OC pin low within 4–15 ms (deglitched). The OC pin remains low until the overload clears and the device recovers - either automatically after thermal cooldown or upon EN toggling. The open-drain output requires an external pull-up resistor (typically 10 kΩ) to interface with MCU GPIO.
What is the purpose of the undervoltage lockout (UVLO) feature in the TPS2041BDGNG4?
The UVLO feature disables the internal power switch when the IN voltage falls below 2.0–2.6 V (depending on temperature), preventing unstable operation, erratic switching, or partial turn-on that could cause shoot-through or excessive heating. It ensures clean, predictable enable/disable behavior during brown-out or battery discharge scenarios.
Can the TPS2041BDGNG4 be used in automotive applications?
The TPS2041BDGNG4 is not AEC-Q100 qualified and is specified for –40°C to +85°C ambient operation - making it suitable for under-dash industrial or commercial automotive-adjacent applications (e.g., infotainment accessories, diagnostic tools), but not for under-hood or safety-critical vehicle subsystems requiring automotive-grade qualification.
TPS2041BDGNG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tube
- 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):
- 70mOhm
- 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-HVSSOP
TPS2041BDGNG4 FAQ
1.How can I place an order for TPS2041BDGNG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2041BDGNG4 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 TPS2041BDGNG4 reliable?
The price and inventory of TPS2041BDGNG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2041BDGNG4 is usually 5 days.
3.What payment methods are accepted for TPS2041BDGNG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2041BDGNG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2041BDGNG4?
TPS2041BDGNG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2041BDGNG4 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 TPS2041BDGNG4?
For technical support, including TPS2041BDGNG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2041BDGNG4 requirements.
6.How does Aetrix verify that TPS2041BDGNG4 is sourced from the original manufacturer or authorized distributors?
All TPS2041BDGNG4 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 TPS2041BDGNG4 meets industry standards.
7.What is the process for return or replacement of TPS2041BDGNG4?
All TPS2041BDGNG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2041BDGNG4, 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 TPS2041BDGNG4 part is unused and in its original packaging.
Return procedure for TPS2041BDGNG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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