Diodes Incorporated PI3USB4000DQ1ZUAEX
- Part No.:
- PI3USB4000DQ1ZUAEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 10-UFQFN
- Datasheet:
-
PI3USB4000DQ1ZUAEX.pdf
- Description:
- IC SWITCH SPDT X 1 10OHM 10UQFN
- Quantity:
- Payment:

- Shipping:

Inventory:19,378
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Product details
Overview
PI3USB4000DQ1ZUAEX from Diodes Incorporated is a differential 2:1 USB 2.0 Mux/DeMux switch with 1 GHz bandwidth, 5 Ω typical ON resistance, and ±24 V tolerance on C0+/C0− pins. It supports 480 Mbps high-speed USB signaling, provides over-voltage protection at 4.75 V, and operates across –40°C to 125°C for automotive-grade USB-C switching in smartphones and tablets.
For engineers reviewing the PI3USB4000DQ1ZUAEX datasheet, PI3USB4000DQ1ZUAEX pinout, PI3USB4000DQ1ZUAEX application, or PI3USB4000DQ1ZUAEX equivalent, this page delivers verified electrical specs, AEC-Q100-qualified operation, OVP response timing (0.5–1 µs), differential crosstalk (–35 dB @ 240 MHz), and UQFN-10 (ZUA) package layout guidance.
Technical Context
The PI3USB4000DQ1ZUAEX implements a single-pole double-throw (SPDT) differential analog switch with independent control of L0+/L0− and L1+/L1− paths via SEL logic. Its internal over-voltage protection circuitry triggers at 4.75 V on C0+/C0−, forcibly disabling channel conduction within 1 µs while maintaining 24 V tolerance in powered-down state.
It features ultra-low 7 pF ON capacitance and 0.25 ns propagation delay to preserve USB2.0 eye diagram integrity, with differential return loss of –15 dB @ 240 MHz and insertion loss < –0.5 dB - enabling direct integration into high-speed USB2.0 data lanes without signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 1 GHz – maintains full USB2.0 (480 Mbps) signal integrity without equalization |
| ON Resistance (Ron) | 5 Ω typical – minimizes voltage drop and insertion loss in high-speed differential paths |
| ON Capacitance (Con) | 7 pF – reduces loading on USB2.0 D+/D− lines to sustain >1 GHz signal fidelity |
| OVP Trigger Voltage | 4.75 V ±0.25 V – fast-acting protection against VBUS overvoltage events during USB-C hot-plug |
| C0+/C0− Voltage Tolerance | –0.3 V to +24 V – enables robust handling of transient surges and miswired charging scenarios |
| Supply Range (VDD) | 2.7 V to 5.5 V – compatible with 3.3 V and 5 V system rails without level-shifting |
| Operating Temperature | –40°C to +125°C – meets AEC-Q100 Grade 1 requirements for under-hood and mobile power delivery |
Pinout & Package
PI3USB4000DQ1ZUAEX is housed in a 10-pin UQFN package (ZUA code), measuring 1.5 × 2.0 mm with 0.6 mm pitch and 0.5 mm height. The package is lead-free, halogen-free, and RoHS 3 compliant, with NiPdAu terminal finish and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| L0+, L0− | Differential I/O Channel 0 | USB2.0 path output when SEL = 0; 24 V tolerant only on C0 side, not Lx |
| L1+, L1− | Differential I/O Channel 1 | USB2.0 path output when SEL = 1; same voltage rating and routing constraints as L0 |
| C0+, C0− | Common Differential I/O Port | High-voltage input/output port; tolerates up to 24 V and triggers OVP at 4.75 V |
| SEL | Logic Control Input | Active-High selection: SEL = 0 routes C0↔L0; SEL = 1 routes C0↔L1 |
| REF | Reference Bias Node | Must be decoupled to GND with ≥1 µF/25 V capacitor; sets internal OVP reference |
| VDD | Positive Supply | Power rail (2.7–5.5 V); requires local 0.1 µF decoupling near pin |
| GND | Power Ground | Primary return path for VDD, REF, and all I/O; must be low-inductance connection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low crosstalk | –35 dB @ 240 MHz ensures minimal interference between active and inactive USB2.0 channels |
| Off-isolation | –30 dB @ 240 MHz prevents signal leakage from powered-off channel into active path |
| Low power consumption | 35 µA typical IDD enables always-on USB-C detection in battery-sensitive mobile systems |
| 1.8 V logic compatibility | SEL accepts 1.8 V logic levels even with 5.5 V VDD, simplifying interface to low-voltage controllers |
| Automotive qualification | AEC-Q100 Grade 1, PPAP-capable, manufactured in IATF 16949 facilities for safety-critical USB-C applications |
Applications
| Smartphone USB-C Switching | Tablet High-Speed Peripheral Routing |
|---|---|
|
Use Scenario: Dynamic switching between USB2.0 host and device roles in dual-role USB-C ports during cable orientation detection. IC Role / Device Role / Timing Role: SPDT differential Mux/DeMux managing D+/D− path selection with sub-1 µs OVP response to prevent damage during VBUS fault events. Use Value: Enables seamless role swap without external protection ICs, reducing BOM count and PCB area by integrating 24 V tolerance and OVP. |
Use Scenario: Sharing a single USB2.0 PHY between multiple peripherals (e.g., camera, fingerprint sensor) in space-constrained tablet designs. IC Role / Device Role / Timing Role: Low-skew (<20 ps), low-loss (–0.5 dB) analog switch preserving signal integrity across 1 GHz bandwidth for concurrent high-speed data transfers. Use Value: Eliminates need for separate USB transceivers per peripheral, lowering cost and power while maintaining eye diagram compliance. |
| Automotive Infotainment USB Hub | Notebook Docking Station Protection |
|
Use Scenario: Protecting USB2.0 data lines in vehicle infotainment head units connected to third-party chargers and accessories with unstable VBUS. IC Role / Device Role / Timing Role: Over-voltage protected Mux/DeMux with –40°C to +125°C operation and AEC-Q100 qualification for under-dash deployment. Use Value: Prevents field failures due to 24 V transients on C0+/C0−, eliminating costly recalls and warranty claims in automotive OEM programs. |
Use Scenario: Safeguarding notebook USB2.0 upstream ports during hot-plug of unregulated USB-C docks delivering up to 20 V on VBUS. IC Role / Device Role / Timing Role: Front-end protection and path selection IC with 4.75 V OVP threshold and 0.5 µs response time to clamp faults before downstream PHY damage. Use Value: Replaces discrete TVS + switch solutions, improving ESD robustness (IEC61000-4-2 10 kV) and reducing layout complexity in thin-profile docking interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB2.0 differential Mux/DeMux applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Lower voltage tolerance (C0± max 5.5 V), no integrated OVP, 6-pin SOT-23 package | Requires external OVP and level-shifting for USB-C VBUS; limited to non-automotive consumer use | Select when cost and board space are critical and system-level OVP is already implemented |
| MAX14534 | Higher Ron (8 Ω typ), no C0± 24 V tolerance, only –40°C to +85°C operation | Not qualified for automotive; unsuitable for direct USB-C connector placement without additional clamping | Choose for industrial PC applications where ambient temperature stays below 85°C and VBUS is regulated |
Compared with TS3USB30E and MAX14534, PI3USB4000DQ1ZUAEX uniquely combines AEC-Q100 qualification, 24 V C0± tolerance, integrated 4.75 V OVP, and 1 GHz bandwidth in a 1.5×2.0 mm UQFN - making it the only drop-in solution for automotive and premium mobile USB-C front-end protection and routing.
Availability
PI3USB4000DQ1ZUAEX is available at Aetrix Electronics and suitable for smartphone USB-C switching, automotive infotainment hubs, and notebook docking station protection requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.
Supply support for PI3USB4000DQ1ZUAEX 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 integrated circuits, specializing in high-performance analog, logic, and protection devices for automotive, industrial, and consumer markets.
The PI3USB4000DQ belongs to Diodes' Pericom USB signal-integrity product line, designed specifically for robust, high-bandwidth USB2.0/USB-C switching with integrated over-voltage and ESD protection in space-constrained portable and automotive platforms.
FAQ
What is the maximum continuous voltage the C0+/C0− pins can withstand?
C0+/C0− pins are rated for continuous operation from –0.3 V to +24 V per Absolute Maximum Ratings. This allows safe integration directly at USB-C connectors exposed to unregulated VBUS, including legacy chargers and faulty cables. Operation beyond 24 V risks permanent damage, and the internal OVP triggers at 4.75 V to protect downstream circuitry.
Does PI3USB4000DQ1ZUAEX require external components for basic operation?
Yes: a 1 µF/25 V capacitor must be placed between REF and GND, and a 0.1 µF ceramic capacitor is required between VDD and GND. These are mandatory for OVP functionality and noise immunity. No pull-up/down resistors are needed on SEL, as it accepts 0–5.5 V logic levels directly.
Can PI3USB4000DQ1ZUAEX support USB On-The-Go (OTG) functionality?
Yes - its bidirectional 2:1 architecture and sub-0.25 ns propagation delay enable transparent USB OTG role swapping. When used with a USB-C controller that manages CC logic, the PI3USB4000DQ1ZUAEX routes D+/D− between host/device PHYs without signal degradation, meeting USB2.0 HS eye diagram requirements.
Is the PI3USB4000DQ1ZUAEX pin-compatible with earlier Pericom USB switches?
No - PI3USB4000DQ1ZUAEX uses a 10-pin UQFN (ZUA) package with unique pinout (e.g., dedicated REF pin, dual L0/L1 differential pairs). It replaces PI3USB30/31 series but requires PCB redesign due to different footprint, routing, and decoupling requirements. Migration requires validation of OVP timing and REF capacitor placement.
PI3USB4000DQ1ZUAEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100µs, 50ns
- -3db Bandwidth:
- 1GHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF
- Current - Leakage (IS(off)) (Max):
- 1µA
- Crosstalk:
- -35dB @ 240MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UQFN (1.5x2)
PI3USB4000DQ1ZUAEX FAQ
1.How can I place an order for PI3USB4000DQ1ZUAEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3USB4000DQ1ZUAEX 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 PI3USB4000DQ1ZUAEX reliable?
The price and inventory of PI3USB4000DQ1ZUAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3USB4000DQ1ZUAEX is usually 5 days.
3.What payment methods are accepted for PI3USB4000DQ1ZUAEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3USB4000DQ1ZUAEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3USB4000DQ1ZUAEX?
PI3USB4000DQ1ZUAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3USB4000DQ1ZUAEX 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 PI3USB4000DQ1ZUAEX?
For technical support, including PI3USB4000DQ1ZUAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3USB4000DQ1ZUAEX requirements.
6.How does Aetrix verify that PI3USB4000DQ1ZUAEX is sourced from the original manufacturer or authorized distributors?
All PI3USB4000DQ1ZUAEX 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 PI3USB4000DQ1ZUAEX meets industry standards.
7.What is the process for return or replacement of PI3USB4000DQ1ZUAEX?
All PI3USB4000DQ1ZUAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3USB4000DQ1ZUAEX, 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 PI3USB4000DQ1ZUAEX part is unused and in its original packaging.
Return procedure for PI3USB4000DQ1ZUAEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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