Texas Instruments TPD2E009DRTR

Overview

TPD2E009DRTR from Texas Instruments is a dual-channel unidirectional TVS diode array designed for ESD protection of high-speed differential interfaces. It delivers ±8-kV IEC 61000-4-2 contact/air-gap ESD immunity, 0.7-pF typical I/O capacitance, 1-Ω dynamic resistance, and supports data rates up to 6 Gbps in HDMI 2.0, USB 3.0, and eSATA applications.

For engineers reviewing the TPD2E009DRTR datasheet, TPD2E009DRTR pinout, TPD2E009DRTR application, or TPD2E009DRTR equivalent, key selection criteria include low-capacitance flow-through layout compatibility, IEC 61000-4-5 Level 4 surge rating (5 A, 8/20 µs), clamping voltage ≤8 V at 1 A, and SOT-9X3 (DRT) package footprint for space-constrained portable designs.

Technical Context

The TPD2E009DRTR implements two matched unidirectional TVS diodes with flow-through pin mapping (D+, D–, GND), enabling zero added skew in differential signal paths. Its monolithic silicon structure ensures <0.05-pF inter-pair capacitance matching, preserving signal integrity at 3 GHz fundamental frequency (6 Gbps NRZ).

Operating as a passive clamp, it remains in high-impedance state below 5.5-V reverse stand-off voltage (VRWM) and triggers above 7-V breakdown (VBR), clamping transients to ≤8 V while dissipating up to 45 W peak pulse power per IEC 61000-4-5.

Key Specifications

Pinout & Package

SOT-9X3 (DRT) package: 1.00 mm × 0.80 mm body size, 0.38-mm max height, 3-pin single-row layout optimized for ultra-compact placement near high-speed connectors.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with TPD2E009DBZR, the TPD2E009DRTR trades thermal performance for 3.6× smaller footprint-critical for ultra-thin notebooks-while retaining identical ESD/surge ratings and 0.7-pF capacitance. SMA6J5.0A-Q lacks differential matching and adds 15× more capacitance, making it incompatible with HDMI/USB 3.0 signal integrity requirements.

Availability

TPD2E009DRTR is available at Aetrix Electronics and suitable for HDMI 2.0, USB 3.0, and eSATA interface designs requiring stable component supply, consistent RoHS-compliant sourcing, and long-term production continuity.

Supply support for TPD2E009DRTR 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 company specializing in analog and embedded processing solutions, with leadership in precision analog, power management, and interface protection technologies.

The TPD2E009 product line targets high-speed interface ESD protection, specifically engineered to preserve signal integrity in HDMI, USB, and SATA applications while meeting stringent IEC 61000-4-2 and IEC 61000-4-5 compliance requirements.

FAQ

What is the maximum data rate supported by the TPD2E009DRTR?

The TPD2E009DRTR supports data rates up to 6 Gbps, validated through eye diagram testing at 3.3-, 5-, and 6-Gbps NRZ signaling (Figures 8–13 in SLVS953B). This capability stems from its 0.7-pF typical I/O capacitance and <0.05-pF differential matching, which minimize signal distortion on HDMI 2.0 and USB 3.0 differential pairs. The TPD2E009DRTR achieves this without compromising ESD robustness, maintaining ±8-kV IEC 61000-4-2 protection at full speed.

Does the TPD2E009DRTR require a power supply or bias voltage?

No, the TPD2E009DRTR is a passive TVS diode array and requires no external power supply or bias circuitry. It operates solely on the voltage transient itself: remaining in a high-impedance state below 5.5-V VRWM and clamping only during ESD/surge events. The TPD2E009DRTR's leakage current is just 0.01–0.1 μA at 2.5 V, making it ideal for always-on, low-power portable applications like media players and notebooks where quiescent current matters.

How does the TPD2E009DRTR's DRT package differ from the DBZ package in practical layout?

The TPD2E009DRTR's SOT-9X3 (DRT) package measures 1.00 mm × 0.80 mm-3.6× smaller than the SOT-23 (DBZ) variant's 2.92 mm × 1.30 mm footprint. This enables placement directly adjacent to ultra-compact connectors like micro-HDMI or slim eSATA ports, minimizing stub length. Layout examples (Figure 14) confirm the DRT's 1.27-mm trace spacing compatibility, whereas DBZ requires wider routing. Thermal resistance is higher (610°C/W vs. 461.8°C/W), but for short-duration ESD events, this is not limiting.

Can the TPD2E009DRTR protect both HDMI and USB 3.0 interfaces simultaneously?

Yes-the TPD2E009DRTR is explicitly qualified for both HDMI 2.0 and USB 3.0 applications per its datasheet Applications section and Typical Application diagram (Figure 7). Its 0.7-pF capacitance, ±8-kV ESD rating, and 5.5-V VRWM align with HDMI's 3.3-V TMDS swing and USB 3.0's 1.0-V SuperSpeed differential amplitude. Each TPD2E009DRTR protects one differential pair; multiple units are used for multi-lane interfaces (e.g., three TPD2E009DRTR devices for full HDMI 2.0 with clock + two data channels).

What is the clamping behavior of the TPD2E009DRTR during an ESD event?

During an ESD event, the TPD2E009DRTR activates when voltage exceeds its 7-V breakdown threshold (VBR), clamping the transient to ≤8 V at 1-A peak current (VCLAMP). Its 1-Ω dynamic resistance ensures rapid voltage suppression, limiting stress on downstream PHY ICs. Post-event, it returns to its low-leakage (<0.1 μA) passive state automatically-no reset or recovery time required. This behavior is verified per IEC 61000-4-2 contact discharge waveforms (Figures 5–6 in SLVS953B), confirming reliable protection for TPD2E009DRTR in real-world hot-plug scenarios.