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Texas Instruments TPS2064DGNG4
- Part No.:
- TPS2064DGNG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2064DGNG4.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:2 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,039
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Product details
Overview
TPS2064DGNG4 from Texas Instruments is a dual-channel, current-limited, high-side power-distribution switch featuring two 70-mΩ N-channel MOSFETs, 1.5-A continuous output current per channel, active-high enable inputs, and integrated thermal/short-circuit protection. It operates from 2.7 V to 5.5 V and is used in USB host/hub power management and hot-plug peripheral modules.
For engineers reviewing the TPS2064DGNG4 datasheet, TPS2064DGNG4 pinout, TPS2064DGNG4 application, or TPS2064DGNG4 equivalent, key selection criteria include dual-channel independent enable control, accurate 1.6–2.6 A current limit, deglitched open-drain OC reporting, reverse current blocking, and DGN-8 PowerPad package thermal performance.
Technical Context
The TPS2064DGNG4 integrates two independent high-side N-channel MOSFET switches with internal charge-pump gate drive enabling operation down to 2.7 V. Each channel features separate active-high EN1/EN2 inputs and dedicated open-drain OC1/OC2 fault outputs with 4–15 ms deglitch timing.
It implements precise current limiting (min 1.6 A, typ 2.1 A, max 2.6 A at 5 V), undervoltage lockout (~2 V threshold with 75 mV hysteresis), and automatic thermal shutdown at ~135°C with 10°C hysteresis. Recovery is fully autonomous after cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | Dual independent high-side switches with separate EN and OC signals |
| Continuous Current | 1.5 A per channel - supports USB downstream port power delivery and hot-swap load sequencing |
| rDS(on) | 70 mΩ typical at 5 V - minimizes conduction loss and self-heating under full load |
| Rise/Fall Time | 0.6 ms typical rise time - controls inrush current into heavy capacitive loads (e.g., 100 µF) |
| Current Limit Range | 1.6 A min to 2.6 A max - ensures reliable short-circuit response across voltage/temperature |
| Operating Voltage | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V system rails including USB VBUS |
| Standby Current | 1 µA max - enables low-power system states without disabling upstream supply |
Pinout & Package
DGN-8 package with exposed PowerPad (must be soldered to GND for thermal and safety compliance). 2 mm × 3 mm, 0.5 mm pitch, wettable flank leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference and PowerPad thermal path | Primary return for power, logic, and thermal dissipation; PowerPad must connect to PCB GND plane |
| IN (Pin 2) | Input power rail | Common input for both channels; accepts 2.7–5.5 V; requires local 0.1 µF ceramic bypass |
| EN1 (Pin 3) | Channel 1 enable input | Active-high logic control; drives OUT1 when high; 2 V VIH minimum ensures TTL/CMOS compatibility |
| EN2 (Pin 4) | Channel 2 enable input | Active-high logic control; drives OUT2 independently; allows staggered or selective power-up |
| OC1 (Pin 8) | Channel 1 overcurrent flag | Open-drain, active-low output; asserted after 4–15 ms deglitch on current limit or thermal fault |
| OUT1 (Pin 7) | Channel 1 switched output | High-side switched output; supports reverse current blocking when disabled |
| OUT2 (Pin 6) | Channel 2 switched output | High-side switched output; electrically isolated from OUT1; supports independent load control |
| OC2 (Pin 5) | Channel 2 overcurrent flag | Open-drain, active-low output; independent reporting enables per-port fault isolation in USB hubs |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow per-channel power sequencing - critical for USB hub port arbitration and hot-plug staging |
| Accurate current limiting | 1.6–2.6 A trip range ensures robust short-circuit response without nuisance tripping on capacitive inrush |
| De-glitched OC reporting | 4–15 ms deglitch window eliminates false fault assertions during transient overloads (e.g., plug-in surge) |
| Reverse current blocking | Prevents backfeed from powered loads into IN rail - essential for system-level fault containment |
| UL/IEC CB certified | DGN-8 package meets UL File E169910 and CB certification - required for commercial/industrial end-equipment safety approval |
Applications
| USB Host/Hub Power Distribution | Hot-Plug Peripheral Module |
|---|---|
Use Scenario: Six-port USB 2.0 host controller powering downstream devices via individual VBUS lines. IC Role / Device Role / Timing Role: Dual-channel high-side switch providing independent 5 V power control and OC fault reporting per port. Use Value: Enables per-port current limiting and fault isolation compliant with USB specification; eliminates need for external sense resistors or discrete MOSFET drivers. | Use Scenario: Field-replaceable I/O module inserted into live backplane while main system remains operational. IC Role / Device Role / Timing Role: Controlled power ramp generator using 0.6 ms rise time to limit inrush into module's bulk capacitance. Use Value: Prevents system rail droop and contact arcing; UVLO ensures automatic disable on removal and safe re-enable on reinsertion. |
| Industrial Control Backplane | Embedded Computing Carrier Board |
Use Scenario: Modular PLC base unit distributing 3.3 V/5 V to interchangeable function cards (analog I/O, comms, motion). IC Role / Device Role / Timing Role: Dual-channel power supervisor with independent EN/OC for card presence detection and fault containment. Use Value: Isolates faulty card without disrupting other modules; OC1/OC2 feed FPGA GPIO for real-time diagnostics and graceful degradation. | Use Scenario: COM Express or SMARC carrier board supplying power to mezzanine modules (Wi-Fi, camera, GPU). IC Role / Device Role / Timing Role: High-side load switch managing 5 V rail to mezzanine with controlled turn-on and thermal foldback. Use Value: Meets IPC-7351B footprint; PowerPad enables 600 mW power dissipation at 70°C ambient - sufficient for 1.5 A × 2 channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel power-switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2064DRBT | Son (DRB-8) package; 2.5 mm × 2.5 mm; no PowerPad; θJA = 270°C/W (low-K PCB) | Limited thermal headroom (322 mW @ 70°C); unsuitable for sustained 1.5 A/channel in compact layouts | Select only if space-constrained and peak load duration is short; verify junction temperature with actual layout |
| TPS2051BDBVR | Single-channel, 1.5 A, SOT-23-5; no OC output; no thermal shutdown; 110 mΩ rDS(on) | No fault reporting or thermal protection; requires external circuitry for multi-port coordination | Use only for cost-sensitive, non-safety-critical single-load applications where diagnostics are handled externally |
Compared with TPS2064DRBT and TPS2051BDBVR, the TPS2064DGNG4 delivers superior thermal performance via PowerPad, full dual-channel autonomy with OC feedback, and integrated safety features-making it the only option qualified for UL/CB-certified USB host designs requiring per-port fault management.
Availability
TPS2064DGNG4 is available at Aetrix Electronics and suitable for USB host/hub power distribution, hot-plug peripheral modules, industrial backplane power management, and embedded carrier-board mezzanine control requiring stable component supply and long-term lifecycle support.
Supply support for TPS2064DGNG4 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 communications markets.
The TPS206x family was designed specifically for USB-compliant power distribution and hot-plug applications, emphasizing accurate current limiting, fault reporting, and robust thermal behavior in miniature packages.
FAQ
What is the operating voltage range of the TPS2064DGNG4?
The TPS2064DGNG4 operates from 2.7 V to 5.5 V on its IN pin. This range supports both 3.3 V and 5 V system rails, including standard USB VBUS. Operation below 2.7 V is prohibited due to undervoltage lockout activation at approximately 2 V, ensuring reliable startup and shutdown behavior in mixed-voltage systems.
How does the TPS2064DGNG4 handle overcurrent conditions?
The TPS2064DGNG4 enters constant-current mode when load current exceeds its 1.6–2.6 A limit, maintaining safe output current while reducing output voltage. If the overload persists, thermal shutdown activates at ~135°C. OC1 and OC2 assert low after a 4–15 ms deglitch period and remain low until the fault clears - preventing false triggers during inrush transients.
Is the TPS2064DGNG4 pin-compatible with other devices in the TPS206x family?
No - the TPS2064DGNG4 uses the DGN-8 package with specific pin assignments for dual active-high enables (EN1/EN2) and dual OC outputs (OC1/OC2). TPS2060 variants use active-low enables and share identical pinout, while TPS2068/69 are single-channel and incompatible. Always verify pin mapping against the official TI SLVS553K datasheet before board reuse.
Does the TPS2064DGNG4 support reverse current blocking?
Yes - the TPS2064DGNG4 provides inherent reverse current blocking when disabled. With the high-side N-channel MOSFET off, current cannot flow from OUT back to IN, even if OUT is held at higher voltage. This feature prevents backfeeding into shared power rails and is confirmed in TI's electrical characteristics table (reverse leakage < 0.2 µA at 25°C).
What is the purpose of the PowerPad in the DGN-8 package of the TPS2064DGNG4?
The PowerPad in the TPS2064DGNG4's DGN-8 package serves as both thermal dissipation path and ground connection. It must be soldered to a PCB GND plane to meet UL/CB safety certification requirements and achieve rated power dissipation (600 mW at 70°C ambient). Omitting PowerPad connection degrades thermal performance and voids safety compliance.
TPS2064DGNG4 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:
- Discontinued at Digi-Key
- Switch Type:
- General Purpose
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 1:2
- 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):
- 1.5A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- 0°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2064DGNG4 FAQ
1.How can I place an order for TPS2064DGNG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2064DGNG4 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 TPS2064DGNG4 reliable?
The price and inventory of TPS2064DGNG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2064DGNG4 is usually 5 days.
3.What payment methods are accepted for TPS2064DGNG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2064DGNG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2064DGNG4?
TPS2064DGNG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2064DGNG4 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 TPS2064DGNG4?
For technical support, including TPS2064DGNG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2064DGNG4 requirements.
6.How does Aetrix verify that TPS2064DGNG4 is sourced from the original manufacturer or authorized distributors?
All TPS2064DGNG4 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 TPS2064DGNG4 meets industry standards.
7.What is the process for return or replacement of TPS2064DGNG4?
All TPS2064DGNG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2064DGNG4, 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 TPS2064DGNG4 part is unused and in its original packaging.
Return procedure for TPS2064DGNG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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