Texas Instruments TPD1E04U04DPYT

Overview

TPD1E04U04DPYT from Texas Instruments is a unidirectional TVS ESD protection diode designed for HDMI 2.0 and USB 3.0 signal lines, featuring 0.5-pF typical IO-to-GND capacitance, ±16-kV IEC 61000-4-2 contact discharge rating, and 0.25 Ω dynamic resistance (IO-to-GND), enabling robust protection of high-speed TMDS differential pairs in consumer AV interfaces.

For engineers reviewing the TPD1E04U04DPYT datasheet, TPD1E04U04DPYT pinout, TPD1E04U04DPYT application, or TPD1E04U04DPYT equivalent, this device delivers verified ultra-low capacitance, sub-9-V clamping at 16-A TLP, industrial temperature operation (–40°C to +125°C), and X1SON (DPY) 2-pin package compatibility with HDMI 2.0 6-Gbps eye integrity requirements.

Technical Context

The TPD1E04U04DPYT implements a single-channel unidirectional ESD clamp with DC breakdown voltage ≥4.5 V and reverse stand-off voltage of 3.6 V, optimized for signal integrity on 0–3.6 V TMDS lines. Its low RDYN (0.25 Ω IO→GND / 0.18 Ω GND→IO) ensures minimal voltage overshoot during transient events.

It meets IEC 61000-4-2 Level 4 (±16-kV contact/air), IEC 61000-4-4 (80-A EFT), and IEC 61000-4-5 (2.5-A surge) standards while maintaining ≤0.65-pF max line capacitance - critical for preserving HDMI 2.0 6-Gbps eye opening and insertion loss performance.

Key Specifications

Pinout & Package

X1SON (DPY) 2-pin no-lead package: 1.00 mm × 0.60 mm body, 0.45 mm max height, exposed thermal pad, compatible with standard 0402 footprint layout and reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD1E04U04DPLT, TPD1E04U04DPYT offers superior thermal dissipation (RθJA = 683.6°C/W vs. 574°C/W) and relaxed layout tolerance, while SMA6J33A-Q lacks the sub-1-pF capacitance required for 6-Gbps signal fidelity - making TPD1E04U04DPYT the sole viable choice for HDMI 2.0 data lane protection.

Availability

TPD1E04U04DPYT is available at Aetrix Electronics and suitable for HDMI 2.0 source ports, USB 3.0 host interfaces, and DisplayPort 1.2 endpoints requiring stable component supply across consumer electronics, industrial displays, and embedded multimedia platforms.

Supply support for TPD1E04U04DPYT 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 delivering analog and embedded processing solutions, with leadership in precision analog, power management, and interface protection technologies.

The TPD1E04U04 product line targets high-speed digital interface protection, specifically engineered to safeguard next-generation HDMI, USB, and DisplayPort implementations against ESD without compromising signal integrity.

FAQ

What is the primary function of the TPD1E04U04DPYT in an HDMI 2.0 design?

The TPD1E04U04DPYT serves as a unidirectional ESD protection diode placed on each TMDS differential pair (e.g., D0+, D0–, CK+) to clamp ±16-kV IEC 61000-4-2 transients before they reach the HDMI transmitter PHY. Its 0.5-pF capacitance ensures minimal impact on 6-Gbps signal integrity, and its 0.25-Ω dynamic resistance guarantees low clamping voltage - directly preserving SoC reliability and HDMI compliance. The TPD1E04U04DPYT is specified for use in production HDMI 2.0 Type-A port layouts per TI's reference design.

Does the TPD1E04U04DPYT support USB 3.0 SuperSpeed operation?

Yes, the TPD1E04U04DPYT is explicitly rated for USB 3.0 SuperSpeed (5 Gbps) applications, as confirmed in its official datasheet (SLVSDG4B, Section 2). With 0.5-pF typical capacitance and <0.65-pF maximum, it maintains signal fidelity across the full 2.5-GHz Nyquist frequency of USB 3.0 NRZ signaling. Real-world validation shows <1 dB insertion loss at 2.5 GHz and zero measurable eye closure in TP2 measurements - making the TPD1E04U04DPYT a qualified solution for USB 3.0 host and device port protection.

What package type does the TPD1E04U04DPYT use, and how does it affect PCB layout?

The TPD1E04U04DPYT uses the X1SON (DPY) 2-pin no-lead package: 1.00 mm × 0.60 mm body size, 0.45 mm max height, with an exposed thermal pad. This flow-through routing package allows direct in-line placement between HDMI connector and controller IC, minimizing stub length and impedance discontinuity. Layout guidelines require placement within 3 mm of the connector, short low-inductance GND vias, and avoidance of sharp trace corners - all validated in TI's HDMI 2.0 layout example (Figure 16).

How does the TPD1E04U04DPYT differ from the TPD1E05U06 in HDMI protection schemes?

The TPD1E04U04DPYT is optimized for TMDS data/clk lines (0–3.6 V swing, ≤0.65-pF capacitance), while the TPD1E05U06 protects HDMI control lines (DDC_CLK, DDC_DAT, CEC, HOTPLUG_DET) with higher 5.5-V signal range support and identical 0.5-pF capacitance. In typical HDMI 2.0 designs, eight TPD1E04U04DPYT units guard the four TMDS pairs and clock, and five TPD1E05U06 units protect auxiliary lines - a complementary pairing documented in TI's SLVSDG4B Section 8.2.1.

What is the maximum data rate supported by the TPD1E04U04DPYT?

The TPD1E04U04DPYT supports data rates up to 6 Gbps, as explicitly stated in its datasheet features and validated via HDMI 2.0 TP2 eye diagrams (Figures 11–12). This capability stems from its 0.5-pF typical capacitance, which keeps insertion loss below –1 dB at 3 GHz and preserves >70% eye opening at 6 Gbps - meeting the stringent signal integrity requirements of HDMI 2.0, USB 3.0, and DisplayPort 1.2 physical layers. No derating is required for 6-Gbps operation under recommended conditions.