Diodes Incorporated PI3USB3000ZUAEX

Overview

PI3USB3000ZUAEX from Diodes Incorporated is a high-speed 2:1 differential analog multiplexer/demultiplexer switch supporting both USB 2.0 (5.5 GHz bandwidth) and Mobile High-Definition Link (MHL) (5.3 GHz bandwidth) signal routing, with 4.6 Ω typical R_ON for USB path and 5.7 Ω for MHL path, integrated overvoltage protection triggering at 4.75 V on D± pins, used in USB-C® smartphones and tablets to dynamically route host D+/D− signals between USB and MHL interfaces.

For engineers reviewing the PI3USB3000ZUAEX datasheet, PI3USB3000ZUAEX pinout, PI3USB3000ZUAEX application, or PI3USB3000ZUAEX equivalent, key selection criteria include differential channel isolation (-34 dB off-isolation), crosstalk (-37 dB), propagation delay (100 ps typ), power-off leakage (<10 µA), and 1.8 V logic-compatible control inputs (SEL/EN).

Technical Context

The PI3USB3000 operates as a bidirectional, single-pole double-throw (SPDT) analog switch with two independent differential paths: one optimized for USB 2.0 signaling (5.5 GHz –3 dB BW, 4.6 Ω R_ON) and one for MHL (5.3 GHz –3 dB BW, 5.7 Ω R_ON). Its internal control logic decodes SEL and EN to select active path or place all channels in high-impedance state.

Overvoltage protection is implemented per-pin on D±, with fast 0.5–1 µs response time to clamp at 4.75 V and disconnect both USB± and MHL± paths. The device maintains <1.5 pF ON-capacitance per path at 240 MHz and supports rail-to-rail analog input swing from 0 V to 3.6 V while tolerating up to 9 V on D± pins.

Key Specifications

Pinout & Package

PI3USB3000ZUAEX is housed in a 10-contact UQFN package (ZUA code), measuring 1.5 × 2.0 mm with 0.6 mm pitch and 0.5 mm height, featuring wettable flank terminations for automated optical inspection (AOI) and IPC-compliant solder joint reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed differential multiplexer applications.

Compared with TS3USB3000RSER and FSUSB30MUX, the PI3USB3000ZUAEX uniquely combines dual-path (USB+MHL) routing, integrated 4.75 V OVP, and sub-100 ps propagation delay-enabling compact, robust, multi-standard USB-C interface designs without external protection or signal conditioning.

Availability

PI3USB3000ZUAEX is available at Aetrix Electronics and suitable for smartphone USB-C switching, tablet MHL docking, and notebook Alt Mode selection requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.

Supply support for PI3USB3000ZUAEX 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 signal integrity, power management, and interface solutions for consumer, computing, and industrial markets.

The PI3USB3000 belongs to Diodes' high-speed analog switch product line, engineered specifically for USB-C multi-role interface consolidation-supporting dynamic protocol switching, overvoltage resilience, and minimal signal degradation in space-constrained portable electronics.

FAQ

What is the maximum voltage the D± pins can tolerate, and how does OVP behave above that threshold?

The D± pins tolerate up to 9 V DC continuously. When voltage exceeds 4.75 V (typical), the internal overvoltage protection circuit triggers within 0.5–1 µs, immediately disconnecting both USB± and MHL± paths while maintaining <10 µA leakage. This action prevents damage to downstream PHYs without requiring external clamping components.

Can PI3USB3000ZUAEX operate with a 1.8 V supply and still accept 1.8 V logic-level control signals?

Yes. The device supports VDD from 1.8 V to 5.5 V and specifies VIH = 1.3 V and VIL = 0.6 V for SEL and EN pins across that full supply range. At VDD = 1.8 V, it reliably interprets 1.8 V GPIO outputs as valid HIGH and 0 V as LOW-no level-shifting required for modern low-voltage SoCs.

How does the PI3USB3000 maintain signal integrity for both USB 2.0 and MHL simultaneously?

It uses separate, optimized internal switch paths: the USB path achieves 5.5 GHz –3 dB bandwidth and 4.6 Ω R_ON, while the MHL path delivers 5.3 GHz bandwidth and 5.7 Ω R_ON. Both paths exhibit matched R_ON (≤0.1 Ω skew) and <1.5 pF ON-capacitance, preserving differential impedance and minimizing bit-to-bit skew (<20 ps) critical for eye opening.

Is PI3USB3000ZUAEX qualified for automotive applications?

No. While rated for –40°C to +85°C operation, the PI3USB3000ZUAEX is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., PI3USB3000ZUAEX-A) with PPAP documentation, IATF 16949 manufacturing, and extended reliability testing-contact Diodes directly for those part numbers.