Texas Instruments SN74LVC1G07QDRYRQ1

Overview

SN74LVC1G07QDRYRQ1 from Texas Instruments is an automotive-grade single-channel open-drain buffer/driver operating from 1.65 V to 5.5 V, delivering 32 mA sink current at 4.5 V, with 5.5 V-tolerant inputs and outputs, and a maximum propagation delay of 5.7 ns at 3.3 V - used for wired-OR logic, LED driving, and level translation in ADAS camera interfaces.

For engineers reviewing the SN74LVC1G07QDRYRQ1 datasheet, SN74LVC1G07QDRYRQ1 pinout, SN74LVC1G07QDRYRQ1 application, or SN74LVC1G07QDRYRQ1 equivalent, key selection considerations include AEC-Q100 Grade 1 qualification (–40°C to +125°C), Ioff partial-power-down support, open-drain output compatibility with pull-up networks, and USON-6 (DRY) package thermal performance.

Technical Context

This device implements a non-inverting open-drain buffer with no internal pull-up; output state is high-impedance when input is high, and sinks current when input is low. Its Ioff circuitry actively disables outputs during power-down, blocking backflow current even with input/output voltages present up to 5.5 V while VCC = 0 V.

Designed for voltage translation across 1.65–5.5 V domains, it supports both down-translation (e.g., 3.3 V logic driving 1.8 V bus) and up-translation (e.g., 1.8 V controller signaling to 5 V system), enabled by 5.5 V-tolerant I/O and rail-independent input thresholds defined per VCC range.

Key Specifications

Pinout & Package

SN74LVC1G07QDRYRQ1 uses the DRY package: 6-pin ultra-thin small-outline no-lead (USON) with 1.45 mm × 1.00 mm body size, wettable flank leads, and exposed thermal pad (not electrically connected). Pin 1 orientation is quadrant Q1 per tape-and-reel standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with SN74LVC1G07QDBVRQ1 and SN74LVC1G07QDCKRQ1, SN74LVC1G07QDRYRQ1 offers the smallest footprint (1.45 mm × 1.00 mm), lowest thermal resistance to board (271°C/W), and highest moisture sensitivity robustness (MSL Level-1), making it optimal for space-constrained, thermally demanding ADAS and powertrain modules.

Availability

SN74LVC1G07QDRYRQ1 is available at Aetrix Electronics and suitable for automotive ADAS camera interfaces, body control module LED drivers, infotainment interrupt buses, and HEV powertrain sensor conditioning requiring stable component supply across extended temperature and long product lifecycles.

Supply support for SN74LVC1G07QDRYRQ1 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and automotive ICs with over 50 years of automotive qualification experience.

SN74LVC1G07QDRYRQ1 belongs to TI's LVC logic family designed specifically for low-voltage, high-speed, AEC-Q100-compliant automotive signal routing - emphasizing voltage translation, power-aware operation, and robust ESD/EMI performance in harsh environments.

FAQ

What is the maximum sink current capability of the SN74LVC1G07QDRYRQ1 at 5 V VCC?

The SN74LVC1G07QDRYRQ1 supports a maximum sink current of 32 mA when VCC = 4.5 V. At 5 V VCC, the absolute maximum rating for continuous output current is ±50 mA, but the guaranteed sink current per the Recommended Operating Conditions table remains 32 mA - verified across –40°C to +125°C. Exceeding 32 mA may impact VOL spec compliance and thermal margin in the DRY package.

Does the SN74LVC1G07QDRYRQ1 support level translation between 1.8 V and 5 V logic domains?

Yes, the SN74LVC1G07QDRYRQ1 supports bidirectional level translation: its inputs accept 0–5.5 V regardless of VCC, and its open-drain output can be pulled up to any voltage ≤5.5 V. When powered from 1.8 V, it correctly interprets 5 V inputs and drives a 5 V pull-up - enabling use as a 1.8 V-to-5 V translator in automotive sensor interfaces.

How does the Ioff feature of the SN74LVC1G07QDRYRQ1 protect the device during partial power-down?

The Ioff circuitry in the SN74LVC1G07QDRYRQ1 disables all output drivers when VCC = 0 V, limiting I/O leakage to ±10 μA even if input or output pins are biased to 5.5 V. This prevents destructive back-current flow through the substrate - essential for safe hot-plug operation and modular power sequencing in automotive gateways and domain controllers.

What is the thermal resistance (RθJA) of the SN74LVC1G07QDRYRQ1 in its DRY package?

The SN74LVC1G07QDRYRQ1 has a junction-to-ambient thermal resistance (RθJA) of 439°C/W in the DRY (USON-6) package, measured per JEDEC JESD51-2 with 1-inch² 2-oz copper on a standard test board. This value assumes no additional thermal vias or heatsinking; adding four 0.3-mm thermal vias under the exposed pad reduces RθJA by ~30% in production layouts.

Can the SN74LVC1G07QDRYRQ1 be used in wired-AND configurations with other open-drain devices?

Yes - the SN74LVC1G07QDRYRQ1's open-drain output is explicitly designed for wired-AND (active-high) or wired-OR (active-low) bus topologies. Multiple outputs can share a single pull-up resistor; the bus goes low only if ≥1 device asserts. Ensure total sink current stays within 32 mA per device and aggregate current limits of the pull-up network and PCB traces.