Texas Instruments TLV9022QDGKRQ1

Overview

TLV9022QDGKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 dual-channel automotive precision comparator with open-drain outputs, 300 µV input offset voltage, 100 ns propagation delay, and 16 µA per channel quiescent current across 1.65 V to 5.5 V supply. It operates from –40°C to +125°C and features fault-tolerant inputs (–0.3 V to 6 V), Power-On Reset, and rail-to-rail input range exceeding supply rails - used in HEV/EV powertrain voltage monitoring and body control module threshold detection.

For engineers reviewing the TLV9022QDGKRQ1 datasheet, TLV9022QDGKRQ1 pinout, TLV9022QDGKRQ1 application, or TLV9022QDGKRQ1 equivalent, key selection criteria include open-drain output compatibility with mixed-voltage logic translation, guaranteed startup behavior via POR, low-power operation in always-on automotive subsystems, and robust input tolerance for noisy battery-sensing nodes.

Technical Context

The TLV9022QDGKRQ1 implements a high-speed, low-power comparator core with internal Power-On Reset circuitry that holds outputs in a known state until V_S ≥ 1.65 V, eliminating spurious transitions during cold cranking or brownout conditions. Its input stage supports common-mode voltages from (V_–) – 0.2 V to (V₊) + 0.2 V and withstands up to 6 V without phase inversion or damage.

Each channel delivers 100 ns propagation delay at 5 V with 15 pF load and maintains <±0.3 mV typical input offset over temperature. The open-drain output supports pull-up to voltages beyond V₊, enabling level-shifting between 1.8 V logic and 5 V systems while sinking ≥4 mA at 125 mV above V_–.

Key Specifications

Pinout & Package

TLV9022QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad connected directly to V_– for enhanced thermal performance in high-temperature automotive applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual open-drain automotive comparator applications.

Compared with TLV9022QDRQ1, TLV9022QDGKRQ1 offers 30% smaller footprint and improved thermal performance for compact ECU designs; versus LM7322QMA/NOPB, it delivers 80× lower supply current and integrated POR - making it the sole choice for battery-sensitive automotive voltage supervisors requiring guaranteed startup behavior.

Availability

TLV9022QDGKRQ1 is available at Aetrix Electronics and suitable for HEV/EV battery management, body control modules, infotainment power sequencing, and ADAS camera supervision requiring stable component supply across extended automotive product lifecycles.

Supply support for TLV9022QDGKRQ1 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, delivering analog and embedded processing solutions for automotive, industrial, personal electronics, and communications markets.

The TLV902x-Q1 family was designed specifically for automotive voltage monitoring and fault detection applications requiring AEC-Q100 qualification, low power, fast response, and robust input tolerance in harsh electrical environments.

FAQ

What is the maximum input voltage the TLV9022QDGKRQ1 can tolerate without damage?

The TLV9022QDGKRQ1 supports input voltages from –0.3 V to 6 V relative to V_–, independent of supply voltage. This fault-tolerant capability allows direct connection to 12 V battery rails or sensor outputs with transient spikes, eliminating need for external clamping diodes in most automotive implementations. Operation remains functional across this range without phase inversion or latch-up.

Does the TLV9022QDGKRQ1 require external pull-up resistors on its outputs?

Yes, TLV9022QDGKRQ1 features open-drain outputs and requires external pull-up resistors on both OUT1 and OUT2. Pull-up voltage may be set independently from V₊ - up to 6 V - enabling level translation between different logic families. Typical values range from 2.2 kΩ to 10 kΩ depending on speed and drive strength requirements.

How does the Power-On Reset (POR) function affect system startup behavior of the TLV9022QDGKRQ1?

The POR circuit in TLV9022QDGKRQ1 holds both outputs in a high-impedance (open-drain) state until the supply voltage reaches 1.65 V. This prevents undefined output states during slow-rising or noisy power ramps - such as those seen during vehicle ignition or battery recovery - ensuring deterministic behavior in safety-critical monitoring paths without external reset ICs.

Can the TLV9022QDGKRQ1 operate from a 1.8 V supply while maintaining full specification?

Yes, TLV9022QDGKRQ1 is fully specified from 1.65 V to 5.5 V. At 1.8 V, it maintains 100 ns typical propagation delay, ±0.3 mV input offset, and 16 µA quiescent current per channel. Input common-mode range extends from (V_–) – 0.2 V to (V₊) + 0.2 V, enabling direct interface with 1.8 V microcontroller ADC references and sensor outputs.

Is the TLV9022QDGKRQ1 pin-compatible with other devices in the TLV902x-Q1 family?

TLV9022QDGKRQ1 shares identical pinout with all TLV902x-Q1 dual comparators in VSSOP-8 (DGK) packaging, including TLV9022QDRQ1 (SOIC-8) and TLV9022QDGKTQ1 (tape-and-reel variant). Pin functions match Table 4-2 in the datasheet: OUT1, IN1–, IN1+, V–, IN2+, IN2–, OUT2, V+. No PCB redesign is needed when substituting within the same package type.