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Diodes Incorporated PI3USB102GZLEX
- Part No.:
- PI3USB102GZLEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 10-WFQFN
- Datasheet:
-
PI3USB102GZLEX.pdf
- Description:
- IC USB 2.0 SWITCH 2:1 10TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:10,181
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Product details
Overview
PI3USB102GZLEX from Diodes Incorporated is a single-channel, bidirectional 2:1 USB 2.0 differential multiplexer/demultiplexer switch supporting high-speed (480 Mbps), full-speed, and low-speed signaling. It features 4.0Ω typical on-resistance at 3.0V, 1,000MHz –3dB bandwidth, 250ps propagation delay, and integrated over-voltage protection on Y+/Y– pins enabling safe connection to VBUS (5V). It is used in portable USB routing applications such as notebook docking stations and multi-port USB hubs.
For engineers reviewing the PI3USB102GZLEX datasheet, PI3USB102GZLEX pinout, PI3USB102GZLEX application, or PI3USB102GZLEX equivalent, key selection criteria include its 6.0pF channel capacitance, –28dB off-isolation at 480 Mbps, 1.8V-compatible control logic, 3.0–5.5V VDD operation, and 10-pin TQFN (1.3mm × 1.6mm) package with Y+/Y– short-to-VBUS tolerance.
Technical Context
The PI3USB102GZLEX implements a passive analog switch architecture with CMOS control logic, optimized for minimal signal degradation across USB 2.0 differential pairs. Its low RON (4.0Ω typ.) and low CON (6.0pF) jointly enable 1,000MHz bandwidth and near-zero bit-to-bit skew (8–20ps).
Over-voltage protection operates independently of VDD state: when Y+/Y– exceeds VOVP (3.1–3.7V depending on VDD), M+/M– and D+/D– outputs clamp to ≤3.6V within 40ns (typ.), protecting downstream devices even during power-off conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON | 4.0Ω typical @ VDD = 3.0V - ensures minimal insertion loss for high-speed USB signals |
| –3dB Bandwidth | 1,000MHz - supports full USB 2.0 high-speed eye diagram integrity |
| Propagation Delay | 250ps - preserves timing alignment between D+/D– and M+/M– paths |
| Off Isolation | –28dB @ 480 Mbps - prevents crosstalk between active and inactive signal paths |
| VDD Range | 3.0V to 5.5V - enables direct integration with 3.3V or 5V system rails |
| ESD Rating | 8kV HBM on Y+/Y– - meets IEC 61000-4-2 level 4 for robust board-level ESD immunity |
| Control Logic Voltage | 1.8V-compatible SEL/OE inputs - allows interfacing with low-voltage microcontrollers |
Pinout & Package
Package: 10-contact TQFN (ZL10), 1.3mm × 1.6mm × 0.75mm, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Y+, Y– | USB 2.0 differential data bus interface with over-voltage protection and VBUS short tolerance |
| 3 | GND | Signal and power ground reference for switch core and ESD protection circuitry |
| 4, 5 | M–, M+ | First multiplexed source path - connects to host or upstream USB port when SEL = low |
| 6, 7 | D–, D+ | Second multiplexed source path - connects to peripheral or downstream USB port when SEL = high |
| 8 | OE | Active-low output enable - disables all paths and places M/D ports in high-impedance state |
| 9 | VDD | Positive supply rail (3.0–5.5V) powering internal logic and switch biasing |
| 10 | SEL | Path select input - selects M+/M– (SEL = low) or D+/D– (SEL = high) as output |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 High-Speed Compliance | Validated at 480 Mbps with <20ps bit-to-bit skew and –29dB crosstalk |
| Power-Off Protection | Y+/Y– tolerates 0–5V while VDD = 0V, with leakage <1µA - enables hot-plug safety |
| Voltage Clamping | Clamps M+/M– and D+/D– to ≤3.6V during Y+/Y– over-voltage events, response time 40ns (typ.) |
| Low Dynamic Loading | 6.0pF channel capacitance and 2.2pF input capacitance minimize signal reflection and rise-time degradation |
| Logic-Level Flexibility | 1.8V-compatible control inputs allow direct drive from modern low-power MCUs without level-shifting |
Applications
| USB Docking Station Routing | Notebook Multi-Port Hub |
|---|---|
Use Scenario: A compact USB-C docking station routes one upstream USB 2.0 link to multiple downstream peripherals (keyboard, storage, Ethernet adapter) via dynamic path selection. IC Role / Device Role / Timing Role: Bidirectional 2:1 MUX/DEMUX providing hardware-level switching between two USB device paths under MCU control. Use Value: Enables seamless peripheral reconfiguration without software enumeration delays; 250ps propagation delay preserves USB 2.0 timing margins. | Use Scenario: A thin-and-light notebook integrates dual USB-A ports sharing a single internal USB 2.0 controller PHY, requiring dynamic port arbitration. IC Role / Device Role / Timing Role: Signal-routing switch that isolates unused port paths to reduce noise coupling and meet USB eye-diagram compliance. Use Value: –28dB off-isolation prevents cross-talk between active/inactive ports; 1,000MHz bandwidth maintains signal integrity at 480 Mbps. |
| Industrial USB Device Selector | Embedded Test Equipment Interface |
Use Scenario: Programmable logic controller (PLC) gateway uses USB 2.0 to connect to either configuration PC or field diagnostic tool, with automatic failover capability. IC Role / Device Role / Timing Role: Fault-tolerant USB path selector with VBUS-short resilience and power-off leakage <1µA. Use Value: Over-voltage protection clamps outputs to 3.6V within 40ns if Y+/Y– shorts to 5V VBUS - protects downstream controller during hot-swap events. | Use Scenario: Automated test fixture switches USB 2.0 communication between DUT and host PC or calibration instrument using GPIO-controlled routing. IC Role / Device Role / Timing Role: Low-skew, low-RON analog switch ensuring deterministic latency (<250ps) for time-critical firmware updates. Use Value: 4.0Ω on-resistance and 6.0pF capacitance maintain >90% signal amplitude at 240 MHz - critical for reliable high-speed enumeration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Higher RON (6.5Ω typ.), no Y+/Y– over-voltage clamping, requires external TVS for VBUS tolerance | Lacks integrated VBUS fault protection - demands additional board space and BOM cost | Choose when cost sensitivity outweighs need for integrated protection and footprint constraints are relaxed |
| MAX4989ETE+ | Wider VDD range (2.7–5.5V), but lower –3dB bandwidth (850MHz) and higher crosstalk (–25dB) | Slightly reduced high-speed margin - may require pre-emphasis or equalization in long-trace layouts | Prefer when 2.7V operation is mandatory and 480 Mbps eye compliance can be verified with margin |
Compared with TS3USB30E and MAX4989ETE+, the PI3USB102GZLEX delivers superior USB 2.0 signal fidelity (1,000MHz BW, –29dB crosstalk) and eliminates external protection components via integrated VBUS-tolerant clamping - reducing BOM count and PCB area in space-constrained portable designs.
Availability
PI3USB102GZLEX is available at Aetrix Electronics and suitable for USB docking stations, notebook multi-port hubs, industrial USB device selectors, and embedded test equipment interfaces requiring stable component supply and guaranteed long-term availability.
Supply support for PI3USB102GZLEX 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-performance, energy-efficient solutions for computing, consumer, industrial, and communications markets.
The PI3USB102GZLEX belongs to Diodes' high-speed analog switch product line, engineered specifically for USB 2.0 signal routing with emphasis on low distortion, robust fault tolerance, and minimal board-level design overhead.
FAQ
Does PI3USB102GZLEX support USB On-The-Go (OTG) functionality?
No. The PI3USB102GZLEX is a passive analog switch, not a protocol-aware OTG controller. It enables hardware-level signal path selection between two USB 2.0 endpoints but does not manage ID pin detection, role negotiation, or VBUS control required for OTG operation. System-level OTG behavior must be implemented externally via MCU or dedicated OTG transceiver.
Can PI3USB102GZLEX operate with VDD = 2.5V?
No. The absolute minimum VDD is 3.0V per datasheet specifications. At 2.5V, RON increases significantly (>8Ω), –3dB bandwidth drops below 700MHz, and over-voltage protection thresholds become undefined. Operation outside 3.0–5.5V violates electrical ratings and risks signal integrity failure at 480 Mbps.
What is the maximum continuous current rating for Y+/Y– pins?
The Y+/Y– pins are rated for 120mA DC output current per pin, as specified in Absolute Maximum Ratings. This applies only when the switch is ON and driven within voltage limits (–0.5V to +6V). Exceeding this current may cause thermal overstress or permanent damage to the internal ESD structures and switch FETs.
Is PI3USB102GZLEX compatible with USB 3.0 SuperSpeed signals?
No. It is designed exclusively for USB 2.0 (480 Mbps) differential signaling. Its 1,000MHz –3dB bandwidth is insufficient for USB 3.0's 5 Gbps data rate, which requires >2.5GHz bandwidth and specialized impedance-controlled routing. Attempting to route SuperSpeed lanes through this device will result in severe signal attenuation and eye closure.
PI3USB102GZLEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 10-WFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Switch Circuit:
- -
- Number of Channels:
- 1
- On-State Resistance (Max):
- 5Ohm
- Voltage - Supply, Single (V+):
- 3V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 1GHz
- Features:
- Bi-Directional, USB 2.0
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TQFN (1.3x1.6)
PI3USB102GZLEX FAQ
1.How can I place an order for PI3USB102GZLEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3USB102GZLEX 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 PI3USB102GZLEX reliable?
The price and inventory of PI3USB102GZLEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3USB102GZLEX is usually 5 days.
3.What payment methods are accepted for PI3USB102GZLEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3USB102GZLEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3USB102GZLEX?
PI3USB102GZLEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3USB102GZLEX 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 PI3USB102GZLEX?
For technical support, including PI3USB102GZLEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3USB102GZLEX requirements.
6.How does Aetrix verify that PI3USB102GZLEX is sourced from the original manufacturer or authorized distributors?
All PI3USB102GZLEX 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 PI3USB102GZLEX meets industry standards.
7.What is the process for return or replacement of PI3USB102GZLEX?
All PI3USB102GZLEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3USB102GZLEX, 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 PI3USB102GZLEX part is unused and in its original packaging.
Return procedure for PI3USB102GZLEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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