Texas Instruments TLV3502AQDCNRQ1

Overview

TLV3502AQDCNRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual high-speed rail-to-rail comparator with 4.5-ns propagation delay, 2.7 V to 5.5 V supply operation, and push-pull CMOS outputs. It features beyond-the-rails input common-mode range (–0.2 V to V+ + 0.2 V), 6 mV internal hysteresis, and shutdown capability-used in automotive HEV/EV powertrain threshold detection and zero-crossing circuits.

For engineers reviewing the TLV3502AQDCNRQ1 datasheet, TLV3502AQDCNRQ1 pinout, TLV3502AQDCNRQ1 application, or TLV3502AQDCNRQ1 equivalent, key selection considerations include propagation delay vs. overdrive voltage behavior, shutdown turn-on/turn-off timing (100 ns / 30 ns), rail-to-rail output drive into CMOS/TTL loads, and thermal performance in SOT-23-8 at 125°C ambient.

Technical Context

The TLV3502AQDCNRQ1 integrates two independent high-speed comparators with matched propagation delay skew ≤0.5 ns and internal 6 mV hysteresis for noise immunity. Its input stage supports common-mode voltages extending 0.2 V beyond both supply rails, enabling direct sensing of signals near ground or V+ without level-shifting.

Each channel features a push-pull CMOS output capable of sourcing/sinking ±1 mA while maintaining VOL/VOH ≤50 mV from rails, and a dedicated shutdown pin that reduces quiescent current to 2 µA. The device operates across –40°C to +125°C with guaranteed 7 ns max propagation delay over temperature and 80 MHz maximum toggle frequency at 50 mV overdrive.

Key Specifications

Pinout & Package

SOT-23-8 (DCN) package, 2.90 mm × 1.60 mm body size, moisture sensitivity level 2 (260°C peak reflow, 1-year floor life).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3502 (non-Q1), TLV3502AQDCNRQ1 adds automotive qualification, tighter thermal specs, and validated reliability-while LMH7322MK/NOPB trades package size and power management for marginal speed gain, making TLV3502AQDCNRQ1 optimal for volume automotive electronics needing robustness, small form factor, and feature completeness.

Availability

TLV3502AQDCNRQ1 is available at Aetrix Electronics and suitable for automotive HEV/EV powertrain control, passive safety systems, and battery management applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLV3502AQDCNRQ1 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 designing analog ICs, embedded processors, and system solutions for automotive, industrial, and personal electronics markets.

The TLV3502AQDCNRQ1 belongs to TI's automotive-qualified high-speed comparator product line, engineered specifically for timing-critical decision-making in powertrain, ADAS, and battery systems where nanosecond-level response and AEC-Q100 reliability are mandatory.

FAQ

What is the minimum supply voltage required for reliable operation of the TLV3502AQDCNRQ1?

The TLV3502AQDCNRQ1 operates reliably from 2.7 V to 5.5 V. At 2.7 V, propagation delay increases to 7 ns (max), and output drive strength remains sufficient for CMOS/TTL interfacing. Operation below 2.7 V is not characterized or guaranteed-TI specifies 2.2 V as absolute minimum (non-operational stress limit), but functional performance is only assured ≥2.7 V per Recommended Operating Conditions table in SBOS507A.

Does the TLV3502AQDCNRQ1 support dual-supply operation?

Yes, the TLV3502AQDCNRQ1 supports dual-supply operation from ±1.35 V to ±2.75 V, as confirmed in Section 9 (Power Supply Recommendations) of the datasheet. In dual-supply mode, V+ connects to positive rail and V– to negative rail, preserving full input common-mode range (–0.2 V to V+ + 0.2 V) and rail-to-rail output swing relative to the local supplies.

How does the internal 6 mV hysteresis affect threshold accuracy in the TLV3502AQDCNRQ1?

The TLV3502AQDCNRQ1's fixed 6 mV internal hysteresis creates a 12 mV total window between rising and falling thresholds, improving noise immunity without external components. This value is added to the base input offset voltage (±1 mV typ), so total effective threshold uncertainty is ±7 mV-critical for rejecting EMI in automotive harnesses while maintaining resolution for millivolt-level sensor signals.

Can the TLV3502AQDCNRQ1 be used in a single-supply configuration with ground-referenced inputs?

Yes-the TLV3502AQDCNRQ1's beyond-the-rails input common-mode range extends to –0.2 V, allowing direct connection of ground-referenced signals (e.g., shunt voltage, thermistor dividers) without level-shifting. When V– = GND and V+ = 5 V, inputs from –0.2 V to 5.2 V are valid, enabling true single-supply operation with no external biasing required.

What is the thermal resistance (RθJA) of the TLV3502AQDCNRQ1 in its SOT-23-8 package?

The TLV3502AQDCNRQ1 in SOT-23-8 (DCN) package has a junction-to-ambient thermal resistance (RθJA) of 191.6°C/W, as specified in Section 6.4 (Thermal Information) of SBOS507A. This value assumes standard JEDEC PCB mounting conditions (2s2p copper layers); actual thermal performance improves with enhanced copper pour or thermal vias beneath the exposed pad (though DCN has no thermal pad).