Texas Instruments TLV9020QDCKRQ1

Overview

TLV9020QDCKRQ1 from Texas Instruments is an automotive-grade single-channel precision comparator with open-drain output, 300 µV input offset voltage, 100 ns propagation delay, 16 µA per-channel quiescent current, and rail-to-rail input operation over 1.65 V to 5.5 V supply - used for battery voltage monitoring and fault detection in HEV/EV powertrain control units.

For engineers reviewing the TLV9020QDCKRQ1 datasheet, TLV9020QDCKRQ1 pinout, TLV9020QDCKRQ1 application, or TLV9020QDCKRQ1 equivalent, this page delivers verified technical context, package-specific pin functions, automotive-qualified performance metrics, and real-world implementation guidance for safety-critical voltage supervision.

Technical Context

The TLV9020QDCKRQ1 implements a high-speed, low-power comparator core with Power-On Reset (POR) ensuring known output state during power ramp-up. Its fault-tolerant inputs withstand up to 6 V beyond rails without damage or phase inversion - critical for noisy automotive environments.

As part of the TLV902x-Q1 family, it features open-drain output compatible with level-shifting logic interfaces below or above V+, and operates across –40°C to +125°C ambient temperature with AEC-Q100 Grade 1 qualification and HBM ESD rating of ±2 kV.

Key Specifications

Pinout & Package

TLV9020QDCKRQ1 is packaged in a 5-pin SC-70 (DCK) with nominal body size 1.25 mm × 2.00 mm, optimized for space-constrained automotive PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV9020IDCKR, TLV9020QDCKRQ1 adds AEC-Q100 qualification, POR, and fault-tolerant inputs - essential for functional safety. Versus LM7321QMA/NOPB, it offers 69× lower quiescent current and open-drain flexibility but narrower supply range and no high-voltage support.

Availability

TLV9020QDCKRQ1 is available at Aetrix Electronics and suitable for HEV/EV battery management, infotainment power sequencing, and body control module load monitoring requiring stable component supply across automotive production lifecycles.

Supply support for TLV9020QDCKRQ1 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 and embedded processing technologies, with deep expertise in automotive electronics and functional safety solutions.

The TLV902x-Q1 product line was designed specifically for precision voltage monitoring in harsh automotive environments - emphasizing low power, rail-to-rail operation, fault tolerance, and AEC-Q100 compliance.

FAQ

What is the maximum input voltage the TLV9020QDCKRQ1 can tolerate relative to its supply rails?

The TLV9020QDCKRQ1 features fault-tolerant inputs rated for –0.3 V to 6 V relative to V−, meaning it safely accepts input signals up to 6 V above V− - even if V+ is only 1.8 V. This eliminates the need for external clamping diodes in battery-sensed applications and prevents output phase inversion during overvoltage transients.

Does the TLV9020QDCKRQ1 include Power-On Reset (POR), and how does it affect system startup?

Yes, TLV9020QDCKRQ1 integrates a dedicated POR circuit that holds the output in a known state (high-impedance for open-drain) until V+ reaches the minimum operating voltage (1.65 V). This prevents false triggering during cold cranking or slow power ramps - critical for reliable boot-up in automotive ECUs and BCMs.

Can the TLV9020QDCKRQ1 operate from a 1.8 V supply, and what performance is guaranteed at that voltage?

Yes, TLV9020QDCKRQ1 is fully specified down to 1.65 V supply. At 1.8 V, it guarantees 300 µV max input offset voltage, 100 ns typical propagation delay, and 16 µA quiescent current - enabling precision low-voltage monitoring in modern 1.8 V domain microcontrollers and always-on wake-up circuits.

What is the purpose of connecting the exposed thermal pad on the TLV9020QDCKRQ1 SC-70 package to V−?

The exposed thermal pad on TLV9020QDCKRQ1 must be soldered directly to the V− (ground) plane to ensure proper thermal dissipation and EMI suppression. TI specifies this connection in the datasheet to maintain junction temperature within limits and reduce noise coupling into sensitive analog inputs - especially critical in high-frequency automotive signal paths.

How does the open-drain output of TLV9020QDCKRQ1 differ from push-pull comparators like TLV9030QDCKRQ1 in system design?

The open-drain output of TLV9020QDCKRQ1 requires an external pull-up resistor but enables level translation, wired-OR logic, and compatibility with higher-voltage peripherals. In contrast, TLV9030QDCKRQ1's push-pull output drives both high and low without external components but cannot interface across voltage domains - making TLV9020QDCKRQ1 preferred for mixed-voltage automotive subsystems.