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Texas Instruments TPS2064DRBR
- Part No.:
- TPS2064DRBR
- Manufacturer:
- Texas Instruments
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TPS2064DRBR.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:2 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,686
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Product details
Overview
TPS2064DRBR from Texas Instruments is a dual-channel, current-limited, high-side power-distribution switch with 70-mΩ on-resistance, 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 interfaces.
For engineers reviewing the TPS2064DRBR datasheet, TPS2064DRBR pinout, TPS2064DRBR application, or TPS2064DRBR equivalent, key selection criteria include dual-channel independent enable control, deglitched open-drain overcurrent reporting (OC1/OC2), reverse current blocking, <1-μA standby supply current, and SON-8 (DRB) package compatibility with space-constrained PCB layouts.
Technical Context
The TPS2064DRBR integrates two independent N-channel MOSFET high-side switches, each driven by an internal charge pump enabling operation down to 2.7 V without external components. Its current-limit circuitry responds within milliseconds to overloads, entering constant-current mode at 1.6–2.6 A (typ. 2.1 A) before thermal shutdown activates at ~135°C.
Each channel features separate active-high EN1/EN2 inputs and dedicated open-drain OC1/OC2 fault outputs with 4–15 ms deglitch timing. The device implements undervoltage lockout (UVLO) with 2.0–2.5 V turn-on threshold and 75 mV hysteresis, ensuring reliable power sequencing during hot-insertion events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1.5 A per channel - supports dual USB downstream ports or redundant load paths. |
| On-Resistance (rDS(on)) | 70 mΩ at 5 V - minimizes voltage drop and power loss under full load. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic/system rails. |
| Rise/Fall Time | 0.6 ms typical rise time - controls inrush current into heavy capacitive loads. |
| Standby Supply Current | 1 μA max - enables ultra-low-power system sleep states. |
| Overcurrent Trip Threshold | 1.6 A min / 2.6 A max - ensures robust short-circuit tolerance while avoiding nuisance trips. |
| Operating Temperature | 0°C to 70°C - validated for commercial-grade embedded and peripheral applications. |
Pinout & Package
TPS2064DRBR is housed in an 8-pin SON (DRB) package with exposed PowerPad for thermal enhancement. The PowerPad must be soldered to a PCB ground plane to meet thermal and safety requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common return path for power, logic, and thermal dissipation via PowerPad. |
| IN (Pin 2) | Power input | Single input rail supplying both channels; accepts 2.7–5.5 V. |
| EN1 (Pin 3) | Channel 1 enable | Active-high logic input controlling OUT1; enables independent power gating. |
| EN2 (Pin 4) | Channel 2 enable | Active-high logic input controlling OUT2; allows asynchronous channel control. |
| OC1 (Pin 5) | Channel 1 fault indicator | Open-drain output asserted low during overcurrent or thermal fault on OUT1. |
| OUT2 (Pin 6) | Channel 2 output | Switched high-side output delivering regulated power to load; reverse-current blocking. |
| OUT1 (Pin 7) | Channel 1 output | Switched high-side output delivering regulated power to load; reverse-current blocking. |
| OC2 (Pin 8) | Channel 2 fault indicator | Open-drain output asserted low during overcurrent or thermal fault on OUT2. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-side switches | Enables isolated power control for two USB ports or subsystems without shared fault propagation. |
| Active-high enable logic | Simplifies interface with microcontroller GPIOs and eliminates need for level-shifting or inverters. |
| Deglitched OC outputs | 4–15 ms glitch immunity prevents false fault reporting during capacitor charging transients. |
| Reverse current blocking | Prevents backflow from powered loads into the IN rail during hot-swap or power-loss events. |
| Charge-pump gate drive | Eliminates external boost components and ensures full MOSFET enhancement at 2.7 V input. |
Applications
| USB Host Port Protection | Self-Powered Hub Power Distribution |
|---|---|
|
Use Scenario: Desktop PC or docking station providing power to multiple downstream USB peripherals. IC Role / Device Role / Timing Role: Dual-channel power switch managing VBUS delivery to two independent USB ports with per-port overcurrent detection. Use Value: Meets USB specification requirements for current limiting (≤500 mA/port), OC reporting, and controlled rise time (<1 ms) to prevent bus reset. |
Use Scenario: Monitor-integrated USB hub supplying power to keyboards, mice, and storage devices. IC Role / Device Role / Timing Role: High-side distribution switch enabling/disabling power to downstream ports under MCU control. Use Value: Enables dynamic port power cycling and thermal-safe operation during simultaneous peripheral insertion. |
| Hot-Plug Module Interface | Industrial I/O Card Power Sequencing |
|
Use Scenario: Field-replaceable compute module inserted into powered backplane. IC Role / Device Role / Timing Role: Inrush-limited power switch isolating module supply from main rail during insertion/removal. Use Value: Limits peak surge current to <2 A and ramps output voltage over ~0.6 ms, preventing system brownouts. |
Use Scenario: Programmable logic controller (PLC) with swappable analog/digital I/O cards. IC Role / Device Role / Timing Role: Dual-channel power gate enforcing safe power-up sequence and fault isolation per card slot. Use Value: Provides per-slot OC reporting (OC1/OC2) to host controller and blocks reverse current during card removal. |
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 |
|---|---|---|---|
| TPS2064DGNR | Same electrical specs; DGN (MSOP-8) package with larger footprint and exposed thermal pad. | Preferred for higher thermal margin in 4-layer boards with thermal vias; less suitable for ultra-dense layouts. | Select when board layout allows MSOP-8 and thermal performance is prioritized over size. |
| TPS2054DRBR | Lower 1.0-A current rating; identical DRB-8 package and pinout; no UVLO or thermal shutdown. | Applicable only in low-power, non-safety-critical systems where fault protection is handled externally. | Choose only if cost sensitivity outweighs need for integrated protection and full USB compliance. |
Compared with TPS2064DRBR, TPS2064DGNR offers better thermal dissipation but requires more PCB area, while TPS2054DRBR sacrifices protection features and current capability for lower cost-neither is pin-compatible nor functionally interchangeable without design review.
Availability
TPS2064DRBR is available at Aetrix Electronics and suitable for USB host designs, self-powered hubs, hot-plug peripheral modules, and industrial I/O card power management requiring stable component supply across production lifecycles.
Supply support for TPS2064DRBR 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 connectivity technologies, with decades of expertise in power management ICs.
The TPS206x family was designed specifically for USB-compliant power distribution and hot-plug applications, emphasizing integrated protection, low quiescent current, and ease of use in space-constrained systems.
FAQ
What is the maximum continuous current per channel for the TPS2064DRBR?
The TPS2064DRBR supports 1.5 A continuous output current per channel under recommended operating conditions (TA ≤ 70°C, VI(IN) = 2.7–5.5 V). This rating is thermally limited and assumes proper PCB thermal design with the PowerPad connected to ground. Peak short-circuit current is specified between 1.6 A and 2.6 A, with typical trip at 2.1 A.
Does the TPS2064DRBR support reverse current blocking?
Yes, the TPS2064DRBR provides inherent reverse current blocking: when the IN rail is unpowered or at lower voltage than OUT1/OUT2, the internal N-channel MOSFETs remain off, preventing backflow from loaded outputs into the input supply. This feature is critical for hot-swap and multi-rail system integrity.
How does the overcurrent (OC) reporting work on the TPS2064DRBR?
The TPS2064DRBR provides two independent open-drain OC outputs (OC1 and OC2), each pulled low during overcurrent or thermal shutdown on its respective channel. These outputs are deglitched with 4–15 ms timeout to suppress false triggers from inrush transients. External pull-up resistors (typically 10 kΩ to VCC) are required for logic-level interfacing.
What is the purpose of the PowerPad on the TPS2064DRBR DRB package?
The exposed PowerPad on the TPS2064DRBR's SON-8 (DRB) package serves as the primary thermal and electrical ground connection. It must be soldered to a PCB copper pour tied to GND to ensure safe junction temperature operation and meet UL/CB certification requirements. Omitting this connection risks thermal shutdown and violates safety compliance.
Can the TPS2064DRBR operate from a 3.3-V supply?
Yes, the TPS2064DRBR operates across 2.7 V to 5.5 V, including standard 3.3-V rails. At 3.3 V, rDS(on) increases slightly (max 115 mΩ), and rise time extends modestly-but all core functions (enable control, OC reporting, UVLO, and current limiting) remain fully specified and functional per the datasheet.
TPS2064DRBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-VDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SON (3x3)
TPS2064DRBR FAQ
1.How can I place an order for TPS2064DRBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2064DRBR 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 TPS2064DRBR reliable?
The price and inventory of TPS2064DRBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2064DRBR is usually 5 days.
3.What payment methods are accepted for TPS2064DRBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2064DRBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2064DRBR?
TPS2064DRBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2064DRBR 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 TPS2064DRBR?
For technical support, including TPS2064DRBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2064DRBR requirements.
6.How does Aetrix verify that TPS2064DRBR is sourced from the original manufacturer or authorized distributors?
All TPS2064DRBR 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 TPS2064DRBR meets industry standards.
7.What is the process for return or replacement of TPS2064DRBR?
All TPS2064DRBR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2064DRBR, 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 TPS2064DRBR part is unused and in its original packaging.
Return procedure for TPS2064DRBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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