Texas Instruments TPD2S701QDSKRQ1

Overview

TPD2S701QDSKRQ1 from Texas Instruments is an AEC-Q100 qualified automotive USB 2.0 data-line protection IC with short-to-VBUS isolation, ±8-kV IEC 61000-4-2 contact ESD clamping on VD+/VD−, 1-GHz bandwidth, and adjustable 0.66–3.8-V overvoltage protection threshold. It safeguards USB transceivers in head units and telematics modules against hot-plug-induced voltage surges and electrostatic discharge.

For engineers reviewing the TPD2S701QDSKRQ1 datasheet, TPD2S701QDSKRQ1 pinout, TPD2S701QDSKRQ1 application, or TPD2S701QDSKRQ1 equivalent, this page delivers verified functional context, validated pin roles, confirmed automotive-grade timing (200 ns OVP response), and real-world implementation constraints for USB 2.0 signal integrity preservation.

Technical Context

The TPD2S701QDSKRQ1 integrates dual nFET data switches with flow-through routing to maintain signal integrity while enabling fast short-to-VBUS detection via internal comparator circuitry. Its adjustable OVP threshold (set by external resistor divider on VREF/MODE) supports system-level tuning across 0.66 V to 3.8 V, with hysteresis of 25 mV and 200 ns typical turnoff latency upon overvoltage event.

It operates from a single 5-V supply (4.5–7 V range), features thermal shutdown at 140–165°C, and provides open-drain FLT assertion within 12.6–23.4 ms of OVP onset. The device supports two operational modes: fixed-threshold Mode 0 (VREF = 3.3 V) and adjustable-threshold Mode 1 (VREF set via RTOP/RBOT), with distinct startup timing (0.5–1 ms) and VREF charge requirements.

Key Specifications

Pinout & Package

TPD2S701QDSKRQ1 is packaged in a 10-pin QFN (DSK) measuring 2.5 mm × 2.5 mm with exposed thermal pad, optimized for space-constrained automotive PCB layouts and thermal dissipation (θJB = 34°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB data-line protection applications.

Compared with TPD2S701DRBRQ1, the TPD2S701QDSKRQ1 offers superior thermal performance in compact automotive layouts; compared with TPD4S012QDCKRQ1, it provides precise OVP threshold adjustment critical for transceiver-specific voltage margining - making it optimal for dedicated USB 2.0 channel protection where size and thermal efficiency are prioritized.

Availability

TPD2S701QDSKRQ1 is available at Aetrix Electronics and suitable for automotive head units, telematics control units, and navigation modules requiring stable component supply with AEC-Q100 qualification and long-term production support.

Supply support for TPD2S701QDSKRQ1 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 leader specializing in analog, embedded processing, and automotive electronics, with decades of automotive qualification expertise and broad portfolio of AEC-Q100-compliant products.

The TPD2S701QDSKRQ1 belongs to TI's automotive USB protection product line, designed specifically to replace discrete ESD + OVP solutions in high-reliability in-vehicle connectivity systems operating across extended temperature ranges.

FAQ

What is the primary function of the TPD2S701QDSKRQ1 in an automotive USB 2.0 interface?

The TPD2S701QDSKRQ1 serves as a dual-channel short-to-VBUS and IEC 61000-4-2 ESD protection IC for automotive USB 2.0 data lines. It integrates nFET switches that isolate the transceiver during overvoltage events (e.g., VBUS shorts), responds in ≤200 ns, and provides ±8-kV contact ESD protection on VD+/VD− pins - eliminating external TVS diodes while preserving signal integrity up to 960 MHz.

How does the adjustable OVP threshold work on the TPD2S701QDSKRQ1?

The TPD2S701QDSKRQ1 supports adjustable overvoltage protection via external resistors RTOP and RBOT connected to MODE and VREF pins. In Mode 1, the OVP threshold equals 1.19×VREF to 1.31×VREF, where VREF is set by the resistor divider. Configurations include 0.66 V (RTOP=47.5 kΩ, RBOT=150 kΩ), 3.3 V (RTOP=140 kΩ, RBOT=24.9 kΩ), and 3.8 V (RTOP=165 kΩ, RBOT=24.9 kΩ), enabling precise alignment with transceiver voltage limits.

What is the role of the FLT pin on the TPD2S701QDSKRQ1?

The FLT pin on the TPD2S701QDSKRQ1 is an open-drain fault indicator that asserts low during overvoltage conditions on VD+/VD−. It remains asserted for 12.6–23.4 ms after OVP onset and automatically deasserts 32 ms after the overvoltage condition clears. This allows microcontrollers to log fault events and trigger system-level diagnostics without requiring external pull-up components beyond standard I²C-style termination.

Can the TPD2S701QDSKRQ1 be used in non-automotive applications?

While the TPD2S701QDSKRQ1 is AEC-Q100 qualified and optimized for automotive environments (–40°C to +125°C), its electrical functionality - including ±8-kV IEC ESD protection, 200 ns OVP response, and 960 MHz bandwidth - is fully applicable to industrial or consumer USB 2.0 interfaces. However, its qualification status, packaging, and test documentation are tailored for automotive use cases.

What are the key differences between the TPD2S701QDSKRQ1 and TPD2S701DRBRQ1?

The TPD2S701QDSKRQ1 uses a 10-pin QFN (2.5 mm × 2.5 mm) package with θJB = 34°C/W, while the TPD2S701DRBRQ1 uses a 10-pin VSSOP (3 mm × 3 mm) with θJB = 87.6°C/W. Both share identical pinout, electrical specifications, and AEC-Q100 qualification. The QFN variant offers superior thermal performance and smaller footprint - critical for space- and thermally constrained automotive modules.