Texas Instruments TLV1701AQDCKRQ1

Overview

TLV1701AQDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive microPower comparator with rail-to-rail inputs, open-collector output, 55 µA quiescent current per channel, 560 ns propagation delay (low-to-high), and operation across 2.2 V to 36 V supply range. It serves as a precision voltage threshold detector in battery monitoring, overvoltage protection, and window comparator circuits for automotive body control modules.

For engineers reviewing the TLV1701AQDCKRQ1 datasheet, TLV1701AQDCKRQ1 pinout, TLV1701AQDCKRQ1 application, or TLV1701AQDCKRQ1 equivalent, key selection considerations include its ±1.1 V to ±18 V dual-supply compatibility, –40°C to +125°C operating range, SC-70-5 package footprint, and 300 µV typical input offset voltage - critical for low-voltage sensing accuracy in safety-critical automotive systems.

Technical Context

The TLV1701AQDCKRQ1 implements a rail-to-rail input stage that prevents phase inversion when inputs exceed supply rails, enabling robust operation in noisy automotive environments. Its open-collector output supports wired-OR configurations and allows pull-up to voltages up to 36 V above the negative supply - independent of the device's own supply voltage.

Designed for microPower operation, it achieves 55 µA quiescent current while maintaining 560 ns low-to-high propagation delay and 460 ns high-to-low delay at 100 mV input overdrive. Input bias current remains below 15 nA at 25°C, supporting high-impedance sensor interfaces without significant loading error.

Key Specifications

Pinout & Package

TLV1701AQDCKRQ1 is packaged in a 5-pin SC-70 (DCK) package with 1.25 mm × 2.00 mm body size and 0.65 mm pitch. This ultra-small outline supports high-density PCB layouts in space-constrained automotive modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV1701QDBVRQ1, TLV1701AQDCKRQ1 offers superior thermal performance and smaller PCB area in SC-70; compared with TLC3702-Q1, it trades speed for rail-to-rail input capability and microPower operation - making TLV1701AQDCKRQ1 optimal for precision, low-power automotive voltage supervision.

Availability

TLV1701AQDCKRQ1 is available at Aetrix Electronics and suitable for automotive battery management, ADAS power sequencing, and body electronics requiring stable component supply with AEC-Q100 compliance and long-term production continuity.

Supply support for TLV1701AQDCKRQ1 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 technologies, with leadership in automotive-grade IC design and manufacturing.

The TLV170x-Q1 product line was engineered specifically for automotive voltage monitoring and fault detection applications, emphasizing wide supply range, rail-to-rail input fidelity, and AEC-Q100 reliability across harsh temperature environments.

FAQ

What is the maximum supply voltage rating for TLV1701AQDCKRQ1?

The absolute maximum supply voltage for TLV1701AQDCKRQ1 is 40 V (±20 V), but the recommended operating range is 2.2 V to 36 V (±1.1 V to ±18 V). Operation beyond 36 V risks exceeding electrical specifications and may degrade long-term reliability. The device's open-collector output can be pulled up to 36 V above V– regardless of the supply voltage applied to V+ and V–, enabling flexible interfacing with higher-voltage subsystems while powering the TLV1701AQDCKRQ1 from a lower rail.

Does TLV1701AQDCKRQ1 support dual-supply operation?

Yes, TLV1701AQDCKRQ1 supports true dual-supply operation from ±1.1 V to ±18 V, with V+ connected to the positive rail and V– to the negative rail. This configuration enables symmetric input common-mode ranges centered at 0 V and is commonly used in AC-coupled signal detection, such as zero-crossing applications. The rail-to-rail input stage maintains functionality even when inputs swing beyond the supply rails by up to 0.5 V, provided input current is limited to ≤10 mA per pin.

What is the purpose of the open-collector output in TLV1701AQDCKRQ1?

The open-collector output in TLV1701AQDCKRQ1 allows the output to sink current only, requiring an external pull-up resistor to define the logic-high voltage level. This architecture enables level translation (e.g., pulling up to 5 V while powering the TLV1701AQDCKRQ1 from 3.3 V), wired-OR logic for combining multiple comparators, and direct drive of relays or optocouplers. It also eliminates shoot-through current in multi-output configurations and supports fail-safe behavior where an open circuit defaults to high-impedance state.

How does TLV1701AQDCKRQ1 handle input signals exceeding the supply rails?

TLV1701AQDCKRQ1 features an input stage designed to prevent phase inversion when inputs exceed V+ or fall below V–, a known failure mode in many comparators. Input pins are diode-clamped to the supply rails, allowing safe operation with signals up to (V– – 0.5 V) and (V+ + 0.5 V), provided input current is limited to ≤10 mA. This behavior is validated across –40°C to +125°C and makes the TLV1701AQDCKRQ1 suitable for direct connection to unregulated battery rails or noisy sensor outputs without external clamping circuitry.

Is TLV1701AQDCKRQ1 pin-compatible with other devices in the TLV170x-Q1 family?

No, TLV1701AQDCKRQ1 is not pin-compatible with TLV1702-Q1 (VSSOP-8) or TLV1704-Q1 (TSSOP-14), as each variant has different channel counts and package footprints. However, the single-channel TLV1701AQDCKRQ1 shares identical pin functions and electrical behavior with TLV1701QDBVRQ1 (SOT-23-5) - differing only in package dimensions and thermal characteristics. Both SC-70 and SOT-23 variants use the same 5-pin assignment: IN+, V–, IN–, OUT, V+.