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Texas Instruments TPS2066TDGNRQ1
- Part No.:
- TPS2066TDGNRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2066TDGNRQ1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:2 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
TPS2066TDGNRQ1 from Texas Instruments is an automotive-qualified, dual-channel, current-limited high-side power-distribution switch featuring 70-mΩ N-channel MOSFETs, 1-A continuous output per channel, and integrated thermal/short-circuit protection. It operates from 2.7 V to 5.5 V and delivers controlled 0.6-ms typical rise time for inrush management in USB host and hot-plug applications.
For engineers reviewing the TPS2066TDGNRQ1 datasheet, TPS2066TDGNRQ1 pinout, TPS2066TDGNRQ1 application, or TPS2066TDGNRQ1 equivalent, key selection criteria include its AEC-Q100 qualification, bidirectional enable logic, deglitched OC reporting, 1-μA standby supply current, and compatibility with heavy capacitive loads up to 100 μF.
Technical Context
The TPS2066TDGNRQ1 integrates two independent high-side N-channel MOSFET switches driven by an internal charge pump that functions down to 2.7 V input, eliminating external gate-drive components. Each channel features dedicated active-high enable (EN1/EN2) and open-drain overcurrent fault reporting (OC1/OC2).
Its current-limit architecture uses a sense FET-not a shunt resistor-to detect overload conditions without adding series resistance; trip threshold is 1.5 A typical (1.1–1.9 A min/max), with automatic transition to constant-current mode during overloads. Thermal shutdown activates at 135°C with 10°C hysteresis and auto-recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1 A per channel - supports sustained USB downstream port or module power delivery without derating at TA ≤ 70°C. |
| On-Resistance (rDS(on)) | 70 mΩ typical at 5 V - minimizes conduction loss and self-heating under full load (PD ≈ 70 mW per channel). |
| Rise/Fall Time | 0.6 ms typical rise time - limits inrush di/dt to protect upstream supplies and reduce EMI during hot-insertion. |
| Overcurrent Trip Threshold | 1.5 A typical (1.1–1.9 A range) - provides precise, temperature-stable current limiting for bus-powered peripherals. |
| Supply Current (Standby) | 1 μA max - enables ultra-low-power system sleep states while retaining fast wake-up capability via ENx. |
| Operating Ambient Range | −40°C to +105°C - meets automotive under-hood and industrial control cabinet environmental requirements. |
| Input Voltage Range | 2.7 V to 5.5 V - supports single-supply operation across 3.3 V and 5 V systems, including degraded USB VBUS. |
Pinout & Package
TPS2066TDGNRQ1 is housed in an 8-pin HVSSOP (DGN) package with exposed PowerPAD™ thermal pad, optimized for PCB heat dissipation and space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary return path for power and logic; must be connected to PCB ground plane and PowerPAD™. |
| IN (Pin 2) | Main power input | Supplies both channels; accepts 2.7–5.5 V; requires local 0.01–0.1 μF ceramic bypass capacitor. |
| EN1 (Pin 3) | Channel 1 enable input | Active-high TTL/CMOS-compatible control; disables switch and reduces supply current to <1 μA when low. |
| EN2 (Pin 4) | Channel 2 enable input | Independent active-high control for second channel; allows asymmetric power sequencing of dual loads. |
| OC2 (Pin 5) | Channel 2 fault indicator | Open-drain, active-low output asserted after 4–15 ms deglitch timeout during overcurrent or thermal fault. |
| OUT2 (Pin 6) | Channel 2 power output | Switched 2.7–5.5 V output; supports bidirectional current flow only when enabled and within safe operating area. |
| OUT1 (Pin 7) | Channel 1 power output | Primary switched output; rated for 1-A continuous load with built-in soft-start and short-circuit foldback. |
| OC1 (Pin 8) | Channel 1 fault indicator | Dedicated open-drain OC signal; electrically isolated from OC2 for independent fault diagnosis per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in soft-start | Controlled 0.6-ms output voltage ramp eliminates inrush surges into 100-μF capacitive loads without external RC networks. |
| Thermal and short-circuit protection | Auto-shutdown at 135°C junction temperature with 10°C hysteresis ensures robust survival during sustained overload or solder-short faults. |
| Deglitched fault reporting | 4–15 ms OC assertion delay prevents false triggers from transient inrush spikes-no external filtering required. |
| UL Listed (E169910) | Validated for end-equipment safety compliance in automotive infotainment and body control modules requiring certified power switching. |
| Undervoltage lockout (UVLO) | Turns off switch below ~2 V input; prevents erratic behavior during brownout or hot-removal, ensuring clean power-down on card ejection. |
Applications
| USB Host / Self-Powered Hub | Automotive Infotainment Module |
|---|---|
Use Scenario: Four-port desktop or vehicle-mounted USB hub distributing 5 V to downstream peripherals. IC Role / Device Role / Timing Role: Dual-channel power switch enabling/disabling individual VBUS ports with overcurrent reporting to host controller. Use Value: Meets USB specification for current limiting (≤500 mA/port), inrush control (<44 Ω + 10 μF), and fault signaling-eliminates need for discrete polyfuses or external comparators. |
Use Scenario: Powering display backlight, touch controller, and audio codec in a head-unit with independent fault isolation. IC Role / Device Role / Timing Role: High-side distribution switch providing AEC-Q100-compliant, thermally protected 5 V rails with channel-specific OC feedback. Use Value: Enables modular design with hot-swap capability; UVLO and auto-recovery prevent latch-up during battery voltage sag or cold-cranking events. |
| Hot-Plug Backplane Slot | Industrial I/O Module |
Use Scenario: Insertion of field-replaceable I/O cards into powered PLC backplanes without disrupting main system operation. IC Role / Device Role / Timing Role: Controlled power ramp generator isolating card capacitance from shared 5 V supply during insertion. Use Value: 0.6-ms rise time limits peak inrush to <1.5 A, preventing upstream supply droop and avoiding false resets in adjacent modules. |
Use Scenario: Power sequencing for sensor interface, isolation amplifier, and CAN transceiver in DIN-rail mounted automation equipment. IC Role / Device Role / Timing Role: Dual-rail power switch with independent EN control supporting staggered startup and fault containment. Use Value: OC1/OC2 outputs feed programmable logic controller inputs for real-time fault logging and predictive maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2068DGNRQ1 | Single-channel version with identical specs except one EN/OC pair and one OUT; same DGN-8 package and 1-A rating. | Suitable only where single-rail control suffices; lacks independent dual-channel fault reporting and sequencing. | Select when board space or BOM count must be minimized and dual-channel independence is unnecessary. |
| TPS2041BDR | Non-automotive, single-channel, 0.5-A rated device in SOIC-8; no AEC-Q100 qualification; higher rDS(on) (110 mΩ typical). | Intended for commercial-grade USB peripherals; lacks thermal shutdown hysteresis and UVLO precision. | Use only in cost-sensitive, non-automotive applications with lower current demand and relaxed reliability requirements. |
Compared with TPS2066TDGNRQ1, TPS2068DGNRQ1 offers identical performance in half the channel count, while TPS2041BDR trades automotive qualification and dual-channel capability for lower unit cost and wider commercial availability-neither is pin-compatible, but both share functional overlap in basic power-switching roles.
Availability
TPS2066TDGNRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, USB host hubs, industrial hot-plug backplanes, and AEC-Q100-compliant power distribution requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS2066TDGNRQ1 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 deep expertise in automotive-grade reliability and system-level power solutions.
The TPS2066-Q1 product line was designed specifically for automotive and industrial power-distribution applications demanding AEC-Q100 qualification, precise current limiting, and robust fault handling in space-constrained, thermally challenging environments.
FAQ
What is the maximum continuous output current per channel for the TPS2066TDGNRQ1?
The TPS2066TDGNRQ1 supports 1 A continuous output current per channel across the full −40°C to +105°C ambient temperature range. This rating is validated under recommended operating conditions (VI(IN) = 2.7 V to 5.5 V) and accounts for thermal derating per the DGN package's dissipation table-ensuring reliable operation in automotive cabin and engine-control applications where airflow is limited.
Does the TPS2066TDGNRQ1 support bidirectional current flow between IN and OUT pins?
No-the TPS2066TDGNRQ1 implements high-side N-channel MOSFET switches configured for unidirectional current flow from IN to OUT only. Reverse current (OUT to IN) is blocked when the switch is disabled, and the device does not support back-driving or energy recovery paths. This architecture ensures safe isolation during hot-removal and prevents unintended power coupling between subsystems.
How does the overcurrent (OC) reporting work on the TPS2066TDGNRQ1?
The TPS2066TDGNRQ1 provides two independent open-drain OC outputs (OC1 and OC2), each asserted low upon detection of overcurrent or thermal shutdown after a 4–15 ms deglitch timeout. The deglitch circuit prevents false triggering from inrush transients, and OC remains latched low until the fault condition clears-enabling direct connection to microcontroller GPIOs or interrupt controllers without external pull-ups or debounce logic.
Is the TPS2066TDGNRQ1 compatible with 3.3-V logic enable signals?
Yes-the TPS2066TDGNRQ1 EN1 and EN2 inputs accept TTL- and CMOS-compatible logic levels: VIH ≥ 2.0 V and VIL ≤ 0.8 V over the full 2.7–5.5 V input range. A 3.3-V microcontroller GPIO can directly drive either enable input without level-shifting, and the input leakage current remains below ±0.5 μA-minimizing loading on low-power control circuits.
What thermal protection mechanisms are implemented in the TPS2066TDGNRQ1?
The TPS2066TDGNRQ1 incorporates junction-temperature sensing that triggers thermal shutdown at 135°C minimum, with 10°C hysteresis. When activated, the power switch turns off completely to halt power dissipation; recovery occurs automatically once the die cools to ~125°C. This protection operates independently of overcurrent events and is designed to prevent permanent damage during sustained short-circuit or overload conditions.
TPS2066TDGNRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 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):
- 1A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2066TDGNRQ1 FAQ
1.How can I place an order for TPS2066TDGNRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2066TDGNRQ1 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 TPS2066TDGNRQ1 reliable?
The price and inventory of TPS2066TDGNRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2066TDGNRQ1 is usually 5 days.
3.What payment methods are accepted for TPS2066TDGNRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2066TDGNRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2066TDGNRQ1?
TPS2066TDGNRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2066TDGNRQ1 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 TPS2066TDGNRQ1?
For technical support, including TPS2066TDGNRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2066TDGNRQ1 requirements.
6.How does Aetrix verify that TPS2066TDGNRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS2066TDGNRQ1 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 TPS2066TDGNRQ1 meets industry standards.
7.What is the process for return or replacement of TPS2066TDGNRQ1?
All TPS2066TDGNRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2066TDGNRQ1, 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 TPS2066TDGNRQ1 part is unused and in its original packaging.
Return procedure for TPS2066TDGNRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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