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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Mixed Technology

Texas Instruments TPD2S703QDGSRQ1

Name: TPD2S703QDGSRQ1
Brand: Texas Instruments
SKU: TPD2S703QDGSRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPD2S703QDGSRQ1

Manufacturer:: Texas Instruments

Category:: Mixed Technology

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: TPD2S703QDGSRQ1.pdf

Description:: TVS DEVICE MIXED 6V 10-VSSOP

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Product details

Overview

TPD2S703QDGSRQ1 from Texas Instruments is an AEC-Q100 qualified automotive USB 2.0 data-line protection IC providing short-to-battery (up to 18 V), short-to-VBUS, and IEC 61000-4-2/ISO 10605 ESD protection. It integrates two high-speed nFET switches with 960 MHz bandwidth, 4–6.5 Ω on-resistance, and 200 ns overvoltage response time for head units and telematics interfaces.

For engineers reviewing the TPD2S703QDGSRQ1 datasheet, TPD2S703QDGSRQ1 pinout, TPD2S703QDGSRQ1 application, or TPD2S703QDGSRQ1 equivalent, key selection criteria include its dual-channel automotive-grade OVP threshold adjustability (via VREF resistor divider), integrated FLT fault indicator, flow-through routing for signal integrity, and support for both VSSOP (3 mm × 3 mm) and WSON (2.5 mm × 2.5 mm) packages.

Technical Context

The TPD2S703QDGSRQ1 implements a dual-channel active protection architecture using back-to-back nFETs per data line, enabling bidirectional signal transmission while blocking overvoltage transients. Its OVP circuitry monitors VD+ and VD− independently, triggering sub-1 µs FET turnoff upon detection of >4.3 V (mode-dependent), with hysteresis of 25 mV to prevent chatter.

It operates in two configurable modes: Mode 0 uses fixed 3.3 V VREF for 4.14 V nominal OVP threshold; Mode 1 enables adjustable thresholds (0.66 V to 3.8 V) via external RTOP/RBOT resistors, allowing system-level optimization against battery shorts or VBUS faults. The FLT open-drain output asserts within 12.6–23.4 ms of OVP onset and recovers in 32 ms after fault clearance.

Key Specifications

Parameter	Value and Actual Design Meaning
OVP Response Time	≤1 µs typical - ensures upstream transceiver protection before damaging energy transfers during 18-V short-to-battery events
ESD Protection Level	±8-kV contact / ±15-kV air-gap (IEC 61000-4-2 & ISO 10605) - eliminates need for external TVS diodes on USB D+/D− lines
Data Path Bandwidth	960 MHz (–3 dB) - preserves USB 2.0 eye diagram integrity with minimal insertion loss up to 480 Mbps
On-Resistance (RON)	4–6.5 Ω - maintains low voltage drop and signal attenuation across full 0–3.6 V data swing
Operating Temperature	–40°C to +125°C - validated for under-hood and infotainment module deployment per AEC-Q100 Grade 1
Supply Voltage	4.5–7 V VPWR - compatible with standard automotive 5-V power rails without LDO regulation
VREF Adjustability	0.63–3.8 V via resistor divider - enables precise OVP threshold tuning for system-specific battery or VBUS fault margins

Pinout & Package

TPD2S703QDGSRQ1 is available in a 10-pin VSSOP package (3.00 mm × 3.00 mm) with exposed thermal pad. Pin numbering follows standard SSOP top-view orientation (pin 1 at top-left corner, counterclockwise).

Pin/Terminal	Circuit Role	Design Meaning
1: VD−	High-voltage I/O	Connector-side USB D− line; withstands 18-V DC shorts and ±15-kV ESD strikes
2: VD+	High-voltage I/O	Connector-side USB D+ line; same robustness as VD− for automotive hot-plug resilience
3: GND	Ground reference	Common return for internal ESD clamps, OVP comparator, and FET substrates
4: FLT	Open-drain fault output	Asserts low during OVP; requires external pull-up; resets automatically post-fault clearance
5: EN	Active-low enable input	Drives low to activate data switches; high disables path and reduces quiescent current to 110 µA
6: MODE	Mode configuration input	Selects between fixed-threshold (Mode 0) or adjustable-threshold (Mode 1) OVP operation
7: VPWR	5-V supply input	Powers internal logic, comparators, and gate drivers; accepts 4.5–7 V with UVLO hysteresis
8: VREF	OVP threshold reference	Sets OVP trip point in Mode 1; internally regulated in Mode 0; supports 0.63–3.8 V range
9: D+	Protected I/O	System-side USB D+ line; clamped to ≤6 V during 18-V short-to-battery events
10: D−	Protected I/O	System-side USB D− line; identical clamping behavior and timing as D+

Key Features

Feature	Design Value
Adjustable OVP Threshold	Configurable 0.66 V to 3.8 V via external resistor divider - enables precise system-level fault margin tuning without redesign
Integrated FLT Fault Indicator	Open-drain output with 32-ms recovery - provides direct microcontroller interrupt signaling for diagnostic logging and fail-safe state management
Flow-Through Routing	VD+/D+ and VD−/D− pins aligned on opposite sides - minimizes PCB trace length and impedance discontinuity for USB 2.0 signal integrity
Thermal Shutdown	140–165°C rising threshold with 10–15°C hysteresis - protects device during sustained overvoltage or overload conditions
Single 5-V Supply Operation	No auxiliary supplies required - reduces BOM count and simplifies power tree design in space-constrained automotive modules

Applications

Head Unit USB Interface	Rear Seat Entertainment
Use Scenario: USB 2.0 port on automotive head unit exposed to frequent cable hot-plug and potential short-to-battery during service or accidental wiring faults. IC Role / Device Role / Timing Role: Dual-channel active switch and OVP protector placed between USB connector and SoC transceiver; responds in ≤1 µs to isolate D+/D− during 18-V shorts. Use Value: Prevents permanent damage to USB PHY and SoC I/O cells while maintaining <1% signal attenuation at 480 Mbps - verified by preserved USB 2.0 eye diagrams.	Use Scenario: USB host port in rear-seat media hub subjected to ESD from passenger interaction and long cable runs susceptible to induced transients. IC Role / Device Role / Timing Role: Integrated IEC 61000-4-2 ±15-kV air-gap ESD clamp and short-circuit limiter on both data lines; FLT pin signals MCU to disable port during fault. Use Value: Eliminates need for discrete TVS diodes and reduces component count by 4 parts per port while meeting ISO 10605 150-pF/2-kΩ automotive test requirements.
Telematics Control Unit	Navigation Module
Use Scenario: Cellular/Wi-Fi module with USB debug interface mounted near vehicle battery, risking 12–18-V shorts during installation or maintenance. IC Role / Device Role / Timing Role: Short-to-battery isolator with 200-ns OVP reaction time; clamps D+/D− to ≤6 V during 18-V transients while preserving data path continuity. Use Value: Enables safe field servicing without disconnecting main battery; maintains functional USB communication until fault clears, reducing diagnostic downtime.	Use Scenario: GPS/navigation module with USB OTG port used for map updates, requiring robust protection against ESD and power rail coupling. IC Role / Device Role / Timing Role: Dual-channel protection IC with adjustable VREF (set to 3.3 V) for 4.14-V OVP threshold - optimized for 5-V VBUS tolerance and 3.3-V transceiver I/O. Use Value: Supports seamless firmware updates via USB without risk of transceiver latch-up or ESD-induced bit errors, validated across –40°C to +125°C operating range.

Head Unit USB Interface

Rear Seat Entertainment

Use Scenario: USB 2.0 port on automotive head unit exposed to frequent cable hot-plug and potential short-to-battery during service or accidental wiring faults.

IC Role / Device Role / Timing Role: Dual-channel active switch and OVP protector placed between USB connector and SoC transceiver; responds in ≤1 µs to isolate D+/D− during 18-V shorts.

Use Value: Prevents permanent damage to USB PHY and SoC I/O cells while maintaining <1% signal attenuation at 480 Mbps - verified by preserved USB 2.0 eye diagrams.

Use Scenario: USB host port in rear-seat media hub subjected to ESD from passenger interaction and long cable runs susceptible to induced transients.

IC Role / Device Role / Timing Role: Integrated IEC 61000-4-2 ±15-kV air-gap ESD clamp and short-circuit limiter on both data lines; FLT pin signals MCU to disable port during fault.

Use Value: Eliminates need for discrete TVS diodes and reduces component count by 4 parts per port while meeting ISO 10605 150-pF/2-kΩ automotive test requirements.

Telematics Control Unit

Navigation Module

Use Scenario: Cellular/Wi-Fi module with USB debug interface mounted near vehicle battery, risking 12–18-V shorts during installation or maintenance.

IC Role / Device Role / Timing Role: Short-to-battery isolator with 200-ns OVP reaction time; clamps D+/D− to ≤6 V during 18-V transients while preserving data path continuity.

Use Value: Enables safe field servicing without disconnecting main battery; maintains functional USB communication until fault clears, reducing diagnostic downtime.

Use Scenario: GPS/navigation module with USB OTG port used for map updates, requiring robust protection against ESD and power rail coupling.

IC Role / Device Role / Timing Role: Dual-channel protection IC with adjustable VREF (set to 3.3 V) for 4.14-V OVP threshold - optimized for 5-V VBUS tolerance and 3.3-V transceiver I/O.

Use Value: Supports seamless firmware updates via USB without risk of transceiver latch-up or ESD-induced bit errors, validated across –40°C to +125°C operating range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPD2S703DRBRQ1	Same die, 10-pin WSON package (2.5 mm × 2.5 mm); 61.5°C/W θJA vs 167.3°C/W for VSSOP	Better thermal performance in compact layouts; requires different PCB footprint and reflow profile	Select when board space is constrained and thermal dissipation is critical; verify solder mask and stencil design for WSON
TPD4S012QDSQRQ1	4-channel device with integrated VBUS switch; no adjustable OVP; fixed 5.5-V OVP threshold; higher capacitance (1.2 pF per line)	Supports USB Type-C and VBUS control; less suitable for 2-channel-only designs needing fine OVP tuning	Choose for multi-port or Type-C systems where VBUS switching and fixed-threshold protection suffice; avoid when OVP adjustability or minimal capacitance (<0.8 pF) is required

Compared with TPD2S703DRBRQ1, the TPD2S703QDGSRQ1 offers superior layout flexibility in larger boards but requires more PCB area; versus TPD4S012QDSQRQ1, it delivers tighter OVP control and lower signal path capacitance essential for high-fidelity USB 2.0 timing compliance.

Availability

TPD2S703QDGSRQ1 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 TPD2S703QDGSRQ1 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 rigorous AEC-Q100 validation processes.

The TPD2S703-Q1 product line was designed specifically for automotive USB 2.0 interface protection, addressing short-to-battery, short-to-VBUS, and system-level ESD threats in infotainment and connectivity modules.

FAQ

What is the maximum short-to-battery voltage the TPD2S703QDGSRQ1 can withstand?

The TPD2S703QDGSRQ1 withstands up to 18 V on VD+ and VD− pins during short-to-battery events, verified per automotive test standards using hot-plug battery-equivalent capacitors and 18-gauge wiring. Its internal nFET switches shut off in ≤1 µs, clamping D+ and D− to ≤6 V (at 3.3 V VREF) or ≤3.5 V (at 0.63 V VREF) to protect downstream transceivers. This rating applies across the full –40°C to +125°C operating range.

How does the TPD2S703QDGSRQ1 differ from consumer-grade USB protectors?

The TPD2S703QDGSRQ1 differs from consumer-grade protectors through AEC-Q100 qualification (Grade 1), –40°C to +125°C operation, 18-V short-to-battery tolerance, and integrated FLT fault signaling - features absent in non-automotive parts like TPD2S017. It also provides adjustable OVP thresholds via VREF, whereas consumer variants typically use fixed thresholds unsuitable for automotive battery rail variations. Its 960 MHz bandwidth and <0.8 pF channel capacitance ensure USB 2.0 eye compliance, unlike generic TVS diodes that degrade signal integrity.

Can the TPD2S703QDGSRQ1 be used with USB 3.0 interfaces?

The TPD2S703QDGSRQ1 is specified and validated only for USB 2.0 (480 Mbps) applications, as confirmed in its official documentation and electrical characteristics tables. While its 960 MHz bandwidth exceeds USB 2.0 requirements, it lacks differential signaling support, SuperSpeed lane handling, and the low-capacitance design needed for USB 3.0 Gen 1 (5 Gbps). TI explicitly lists USB 2.0 and USB 3.0 as separate interface categories in Applications, indicating the device is not rated for USB 3.0 data lanes. Use dedicated USB 3.0 protectors such as TPD6S300A for Gen 1/Gen 2 compliance.

What is the purpose of the MODE pin on the TPD2S703QDGSRQ1?

The MODE pin on the TPD2S703QDGSRQ1 selects between two operational modes: Mode 0 (fixed 3.3 V VREF, 4.14 V OVP threshold) and Mode 1 (adjustable VREF via external resistor divider, enabling OVP thresholds from 0.66 V to 3.8 V). In Mode 1, the MODE pin also serves as the feedback node for the internal VREF regulator. Pulling MODE to GND via 2–2.6 kΩ sets Mode 0; connecting RTOP/RBOT resistors configures Mode 1. This dual functionality allows flexible system-level protection tuning without changing the TPD2S703QDGSRQ1 silicon.

Does the TPD2S703QDGSRQ1 require external components for basic operation?

Yes - the TPD2S703QDGSRQ1 requires external components for reliable operation: a 1–10 µF capacitor on VPWR, a 0.3–3 µF capacitor on VREF (for Mode 1 stability), and pull-up resistors on FLT and EN. For adjustable OVP (Mode 1), RTOP and RBOT resistors must be added to set VREF. No external TVS diodes are needed due to integrated IEC/ISO ESD clamps on VD+/VD−. Layout guidelines specify 10-nH chokes on D+/D− lines for optimal short-to-battery immunity, as shown in TI's reference schematics.

TPD2S703QDGSRQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Clamping:: 6V

Technology:: Mixed Technology

Number of Circuits:: 1

Applications:: USB

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 10-VSSOP

TPD2S703QDGSRQ1 FAQ

1.How can I place an order for TPD2S703QDGSRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPD2S703QDGSRQ1 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 TPD2S703QDGSRQ1 reliable?

The price and inventory of TPD2S703QDGSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD2S703QDGSRQ1 is usually 5 days.

3.What payment methods are accepted for TPD2S703QDGSRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD2S703QDGSRQ1 transactions.

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4.How is shipping managed for TPD2S703QDGSRQ1?

TPD2S703QDGSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPD2S703QDGSRQ1 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 TPD2S703QDGSRQ1?

For technical support, including TPD2S703QDGSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD2S703QDGSRQ1 requirements.

6.How does Aetrix verify that TPD2S703QDGSRQ1 is sourced from the original manufacturer or authorized distributors?

All TPD2S703QDGSRQ1 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 TPD2S703QDGSRQ1 meets industry standards.

7.What is the process for return or replacement of TPD2S703QDGSRQ1?

All TPD2S703QDGSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPD2S703QDGSRQ1, 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 TPD2S703QDGSRQ1 part is unused and in its original packaging.

Return procedure for TPD2S703QDGSRQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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