Texas Instruments TLV3501AQDBVRQ1

Overview

TLV3501AQDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, rail-to-rail input/output high-speed comparator with 4.5-ns propagation delay (typ), 2.7 V to 5.5 V supply operation, and push-pull CMOS output stage. It delivers fast, deterministic switching for HEV/EV powertrain control, DC-DC converter feedback, and zero-crossing detection in automotive environments up to +125°C ambient.

For engineers reviewing the TLV3501AQDBVRQ1 datasheet, TLV3501AQDBVRQ1 pinout, TLV3501AQDBVRQ1 application, or TLV3501AQDBVRQ1 equivalent, key selection considerations include its 6-mV internal hysteresis, shutdown functionality with 100-ns wake-up time, ±1-mV offset voltage (typ), and SOT-23-6 package compatibility with space-constrained automotive PCB layouts.

Technical Context

The TLV3501AQDBVRQ1 employs a fully differential high-speed comparator core with internal hysteresis and ESD-protected inputs extending 0.2 V beyond rails. Its push-pull output drives CMOS/TTL loads directly without external pull-ups, supporting logic-level interfacing in safety-critical automotive subsystems.

Shutdown control is implemented via a dedicated SHDN pin with defined thresholds: device enables when SHDN is >1.7 V below V+, disables when within 0.9 V of V+. Quiescent current drops to 2 µA in shutdown, while active-mode supply current remains stable at 3.2 mA (typ) across 2.7–5.5 V.

Key Specifications

Pinout & Package

SOT-23-6 (DBV) package, 2.90 mm × 1.60 mm body size, 1.45 mm max height, lead-free (NiPdAu) finish, MSL Level-2-260°C-1 year.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3501AQDBVRQ1, TLV3701AQDBVRQ1 trades 3 orders of magnitude lower supply current for 260× slower response, while TLC3702AQDRQ1 offers dual-channel integration at the expense of speed, output drive, and input range - making TLV3501AQDBVRQ1 the sole choice for sub-10-ns automotive timing-critical functions.

Availability

TLV3501AQDBVRQ1 is available at Aetrix Electronics and suitable for HEV/EV powertrain control, DC-DC converter feedback, and automatic test equipment requiring stable component supply across automotive production lifecycles.

Supply support for TLV3501AQDBVRQ1 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 delivering analog and embedded processing solutions, with deep expertise in automotive-grade signal conditioning and power management ICs.

The TLV3501AQDBVRQ1 belongs to TI's AEC-Q100-qualified high-speed comparator product line, engineered specifically for timing-critical automotive subsystems including traction inverters, battery management, and ADAS power sequencing.

FAQ

What is the maximum operating frequency supported by the TLV3501AQDBVRQ1?

The TLV3501AQDBVRQ1 supports a maximum toggle frequency of 80 MHz under specified conditions (50-mV overdrive, VS = 5 V). This is derived from its 4.5-ns typical propagation delay and 1.5-ns rise/fall times. Real-world achievable frequency depends on layout parasitics, load capacitance, and overdrive level - measured performance in evaluation boards confirms stable 75-MHz operation with proper 0.1-µF/2.2-µF bypassing.

Does the TLV3501AQDBVRQ1 require external pull-up resistors on its output?

No, the TLV3501AQDBVRQ1 features a push-pull CMOS output stage that actively drives both high and low states, eliminating the need for external pull-up resistors. This reduces component count and ensures consistent rise/fall times independent of external loading - critical for interfacing directly with FPGA or microcontroller GPIO pins in automotive control units.

How does the internal 6-mV hysteresis of the TLV3501AQDBVRQ1 affect threshold accuracy?

The TLV3501AQDBVRQ1's fixed 6-mV internal hysteresis creates a 12-mV total window between upper and lower switching thresholds, improving noise immunity but reducing effective resolution. For example, with a 100-mV input step, the output transition occurs over a 6-mV band rather than a single point - this prevents oscillation on noisy signals like motor current sense outputs, at the cost of ±3-mV threshold uncertainty.

Can the TLV3501AQDBVRQ1 operate from a 2.2-V supply?

The TLV3501AQDBVRQ1 is specified for reliable operation from 2.7 V to 5.5 V. While the absolute maximum rating allows 2.2 V, electrical characteristics including propagation delay, offset voltage, and output swing are not guaranteed below 2.7 V. TI documentation explicitly states performance is unspecified below recommended conditions - use only within 2.7–5.5 V for AEC-Q100-compliant designs.

What is the purpose of the Z-suffix variant (e.g., TLV3501AZQDBVRQ1) versus the standard TLV3501AQDBVRQ1?

The Z-suffix (e.g., TLV3501AZQDBVRQ1) denotes enhanced package robustness with improved resistance to delamination during reflow and thermal cycling. It uses a different mold compound and has MSL Level-3 (168-hour floor life) versus Level-2 for the standard TLV3501AQDBVRQ1. Both share identical electrical specs and pinout - the Z-version is preferred for high-reliability automotive assembly where moisture sensitivity and long-term interfacial integrity are critical.