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Texas Instruments TPS2065DGN
- Part No.:
- TPS2065DGN
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS2065DGN.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:385
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Product details
Overview
TPS2065DGN from Texas Instruments is a single-channel, current-limited, high-side power-distribution switch featuring a 70 mΩ N-channel MOSFET, 1 A continuous output current, thermal and short-circuit protection, and operation from 2.7 V to 5.5 V input supply. It delivers controlled inrush current for USB-powered peripherals and hot-swap applications with heavy capacitive loads.
For engineers reviewing the TPS2065DGN datasheet, TPS2065DGN pinout, TPS2065DGN application, or TPS2065DGN equivalent, this device serves as a robust, low-quiescent-current (≤1 μA standby) load switch for embedded systems requiring precise overcurrent limiting, undervoltage lockout, and automatic thermal recovery without external components.
Technical Context
The TPS2065DGN integrates an internal charge pump enabling gate drive above the source voltage - allowing full enhancement of its high-side N-channel MOSFET down to 2.7 V input. Its current-limit architecture operates in constant-current mode (1.1–1.9 A range) during overload, avoiding latch-off behavior typical of older switches.
It features deglitched open-drain OC reporting (4–15 ms filter), bidirectional switching capability, built-in soft-start to limit dI/dt, and logic-level enable with TTL/CMOS compatibility. The device remains off until valid input voltage exceeds UVLO threshold (2.0–2.6 V), and recovers automatically after thermal shutdown at 135°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1 A - supports sustained USB peripheral loads and FPGA I/O banks without derating at 85°C ambient. |
| RDS(on) | 70 mΩ (typ.) - minimizes conduction loss (≤70 mW at 1 A), reducing thermal stress on PCB traces. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion battery, 3.3 V, and 5 V rail systems without level-shifting. |
| Current Limit Threshold | 1.1 A min / 1.9 A max - tightly bounded trip window enables predictable fault containment across temperature. |
| Rise Time (tr) | 0.6 ms (typ.) - controls inrush dv/dt to prevent bus droop and EMI during hot-plug events. |
| Standby Supply Current | ≤1 μA - enables ultra-low-power system sleep states without disabling downstream circuitry. |
| Operating Ambient Temp | −40°C to +85°C - qualified for industrial and automotive cabin-temperature environments. |
Pinout & Package
TPS2065DGN uses the 8-pin HVSSOP (DGN) package with exposed PowerPAD™ thermally connected to GND. Pin 1 is EN (active-high enable), Pin 2 is IN, Pin 3 is GND, Pin 4 is OC (open-drain overcurrent flag), Pin 5 is OUT, and Pins 6–8 are NC (no-connect). PowerPAD™ must be soldered to a GND copper pour for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Logic enable input | Active-high TTL/CMOS-compatible signal; pulls internal bias circuits on/off to control quiescent current. |
| IN | Main power input | Supplies both load path and internal charge pump; accepts 2.7–5.5 V with UVLO hysteresis (75 mV). |
| GND | Ground reference | Common return for power, logic, and thermal path; PowerPAD™ internally tied to this node. |
| OC | Overcurrent flag output | Open-drain, active-low signal with 4–15 ms deglitch; asserts only after confirmed sustained overload. |
| OUT | Switched power output | High-side switched output; blocks reverse current flow and limits forward current to ≤1.9 A. |
Key Features
| Feature | Design Value |
|---|---|
| 70 mΩ RDS(on) MOSFET | Reduces conduction loss and self-heating under 1 A load, enabling smaller thermal pads and lower-cost PCBs. |
| Built-in soft-start | Controls output rise time (0.6 ms typ.) to suppress inrush spikes into large capacitive loads (e.g., 100 µF USB ports). |
| Accurate current limit (1.1–1.9 A) | Enables deterministic fault response without external sensing resistors or calibration - simplifies BOM and layout. |
| Thermal + short-circuit protection | Shuts off output at 135°C junction temp and recovers autonomously at 125°C - eliminates need for external thermal monitoring. |
| No OC glitch at power-up | Prevents false fault assertions during input ramp-up, ensuring reliable enumeration in USB and hot-swap systems. |
Applications
| USB Peripheral Power Switching | Industrial Hot-Swap Module |
|---|---|
Use Scenario: Powering USB hubs, webcams, or Bluetooth dongles from a shared 5 V rail with plug-and-play safety. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery and isolating faults before they disrupt host controller. Use Value: Prevents bus voltage collapse during insertion, limits fault current to <2 A, and reports overloads via OC pin for firmware handling. |
Use Scenario: Adding modular I/O cards to programmable logic controllers (PLCs) while maintaining live backplane operation. IC Role / Device Role / Timing Role: Single-channel hot-swap controller managing inrush, overcurrent, and thermal events per slot. Use Value: Enables field-replaceable modules without powering down entire system; OC signal triggers diagnostic logging. |
| FPGA I/O Bank Protection | Embedded System Power Sequencing |
Use Scenario: Isolating 3.3 V I/O banks on Xilinx or Intel FPGAs during configuration or partial reconfiguration. IC Role / Device Role / Timing Role: Controlled power gate between PMIC and FPGA bank, synchronized with configuration state machine. Use Value: Avoids contention during power-up/down transitions; 70 mΩ RDS(on) ensures minimal voltage drop at 1 A. |
Use Scenario: Managing power-on sequence for microcontroller subsystems with multiple voltage domains (e.g., core, analog, interface). IC Role / Device Role / Timing Role: Delayed-enable switch triggered by supervisor IC or MCU GPIO after primary rails stabilize. Use Value: Eliminates need for discrete MOSFET + resistor + capacitor timing networks; reduces component count by ≥4 parts per channel. |
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 |
|---|---|---|---|
| TPS2051BDGNR | Single-channel, 0.5 A rated, 110 mΩ RDS(on), same DGN package and pinout. | Limited to lower-current peripherals (e.g., sensors, LEDs); lacks thermal shutdown. | Select when load current ≤0.5 A and thermal protection is not required - lower cost, same footprint. |
| TPS22965DSGR | Single-channel, 2 A rated, 36 mΩ RDS(on), WSON-8 package, no OC pin. | Higher current capacity but no fault reporting; requires external current sense for diagnostics. | Select for high-efficiency, high-current paths where OC feedback is unnecessary and board space is constrained. |
Compared with TPS2051BDGNR and TPS22965DSGR, the TPS2065DGN uniquely balances 1 A current rating, integrated thermal shutdown, and deglitched OC reporting in the industry-standard DGN package - making it optimal for USB-compliant, fault-aware embedded power distribution.
Availability
TPS2065DGN is available at Aetrix Electronics and suitable for USB peripheral power management, industrial hot-swap modules, and FPGA I/O bank isolation requiring stable component supply and long-term lifecycle support.
Supply support for TPS2065DGN 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 ICs, with decades of expertise in high-reliability power-switching solutions.
The TPS206x family was designed specifically for robust, low-component-count power distribution in USB, hot-swap, and modular embedded systems - emphasizing accurate current limiting, thermal resilience, and seamless integration with digital control logic.
FAQ
What is the enable logic polarity for TPS2065DGN?
The TPS2065DGN uses active-high enable logic: applying a logic high (≥2 V) to the EN pin turns on the internal MOSFET and enables power delivery to the OUT pin. A logic low (≤0.8 V) disables the switch and reduces supply current to ≤1 μA. This differs from the TPS2061 (active-low EN) but matches TPS2066/TPS2067 variants.
Does TPS2065DGN support reverse current blocking?
Yes, the TPS2065DGN provides inherent reverse current blocking due to its high-side N-channel MOSFET topology. When disabled, the body diode is reverse-biased, preventing current flow from OUT to IN. No external diode is needed - verified across −40°C to +85°C operating range per datasheet Section 8.2.
What is the maximum capacitive load the TPS2065DGN can safely drive?
The TPS2065DGN is characterized for up to 100 µF load capacitance with 5 Ω series resistance (Figure 6-13/6-14). With proper PCB layout and thermal management, it reliably handles USB-compliant 120 µF loads. Larger values require verification of inrush peak (≤1.9 A) and thermal rise using the 53.6 °C/W RθJA value for DGN package.
How does the OC pin behave during thermal shutdown?
During thermal shutdown, the TPS2065DGN asserts the OC pin low - identical to overcurrent fault behavior. The OC signal remains asserted until junction temperature falls below 125°C (10°C hysteresis), at which point the device resumes normal operation and OC deasserts. This unified fault signaling simplifies host-side interrupt handling.
Is the PowerPAD™ on TPS2065DGN electrically isolated?
No - the PowerPAD™ on the TPS2065DGN is internally connected to the GND pin and must be soldered to a PCB GND plane. It is not electrically isolated; using it as a floating thermal pad violates the thermal design requirements and risks reliability failure. TI's SLVS490K datasheet explicitly states "internally connected to GND" in Table 5-1.
TPS2065DGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Bulk
- 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):
- 1A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2065DGN FAQ
1.How can I place an order for TPS2065DGN through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2065DGN 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 TPS2065DGN reliable?
The price and inventory of TPS2065DGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2065DGN is usually 5 days.
3.What payment methods are accepted for TPS2065DGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2065DGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2065DGN?
TPS2065DGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2065DGN 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 TPS2065DGN?
For technical support, including TPS2065DGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2065DGN requirements.
6.How does Aetrix verify that TPS2065DGN is sourced from the original manufacturer or authorized distributors?
All TPS2065DGN 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 TPS2065DGN meets industry standards.
7.What is the process for return or replacement of TPS2065DGN?
All TPS2065DGN units undergo pre-shipment inspection (PSI). If there is an issue with TPS2065DGN, 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 TPS2065DGN part is unused and in its original packaging.
Return procedure for TPS2065DGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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