Texas Instruments TLV9022WDSGRQ1

Overview

TLV9022WDSGRQ1 from Texas Instruments is an AEC-Q100 Grade 1 dual-channel automotive 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 (POR), 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 TLV9022WDSGRQ1 datasheet, TLV9022WDSGRQ1 pinout, TLV9022WDSGRQ1 application, or TLV9022WDSGRQ1 equivalent, this page delivers verified technical context, package-specific pin functions, real-world automotive use cases, and two validated alternative parts with documented functional and application-level differences.

Technical Context

The TLV9022WDSGRQ1 implements a precision dual-comparator architecture with independent input stages featuring ultra-low input bias current (5 pA) and high common-mode rejection (70 dB at 5 V). Its internal POR circuit ensures deterministic output state during power ramp-up, eliminating transients before V_S reaches 1.65 V.

Each channel supports fault-tolerant inputs that withstand up to 6 V regardless of supply voltage, with no phase inversion or damage. The open-drain output stage allows level-shifting via external pull-up (to voltages below or above V₊) and sinks ≥4 mA at ≤125 mV above V_– (25°C).

Key Specifications

Pinout & Package

TLV9022WDSGRQ1 is packaged in an 8-pin WSON (DSG) with 2.00 mm × 2.00 mm body size and exposed thermal pad. The thermal pad must be connected directly to V_– for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV9022DRQ1 and LM7322QDRQ1, TLV9022WDSGRQ1 uniquely combines ultra-low power (16 µA), open-drain flexibility, POR assurance, and WSON thermal efficiency - making it optimal for compact, always-on automotive sensing nodes where layout area and startup predictability are critical.

Availability

TLV9022WDSGRQ1 is available at Aetrix Electronics and suitable for HEV/EV powertrain monitoring, body control module voltage supervision, and infotainment system power sequencing requiring stable component supply across extended automotive lifecycles.

Supply support for TLV9022WDSGRQ1 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, embedded processing, and automotive-grade ICs with decades of AEC-Q100 qualification expertise.

The TLV902x-Q1 family was designed specifically for precision voltage monitoring in harsh automotive environments - emphasizing low power, fault tolerance, and guaranteed startup behavior in safety-critical subsystems.

FAQ

What is the maximum input voltage the TLV9022WDSGRQ1 can tolerate without damage?

The TLV9022WDSGRQ1 accepts input voltages from –0.3 V to 6 V relative to V_–, independent of supply voltage. This fault-tolerant rating applies to both IN1± and IN2± pins and prevents damage or phase inversion even when inputs exceed V₊ or fall below V_–. No external clamping is required for typical 12 V or 24 V automotive signals.

Does the TLV9022WDSGRQ1 support true rail-to-rail input operation?

Yes - the TLV9022WDSGRQ1 supports a common-mode input range from (V_–) – 0.2 V to (V₊) + 0.2 V across its full operating temperature range (–40°C to +125°C). This enables direct interface with sensors, battery terminals, and communication bus bias points without level-shifting circuitry.

How does the Power-On Reset (POR) function in the TLV9022WDSGRQ1 affect system startup?

The POR circuit holds both outputs in a defined low state until the supply voltage reaches ≥1.65 V. This eliminates output glitches during cold cranking or slow-ramp power-up, ensuring reliable initialization in automotive ECUs. The POR is internal and requires no external components - a key differentiator from discrete comparator solutions.

Can the TLV9022WDSGRQ1 drive a MOSFET gate directly?

No - the TLV9022WDSGRQ1 has an open-drain output rated for 4 mA sink current (at ≤125 mV above V_–). While sufficient for logic-level signaling or pull-down of high-impedance gates, it cannot source current or deliver the peak gate charge required for fast MOSFET switching. A dedicated gate driver or buffer stage is required for direct MOSFET control.

Is the thermal pad of the TLV9022WDSGRQ1 electrically connected internally?

Yes - the exposed thermal pad on the TLV9022WDSGRQ1 (WSON package) is internally connected to the V_– pin. TI's datasheet explicitly requires soldering the pad directly to the V_– copper plane to ensure proper thermal dissipation (R_θJC(bot) = 127.3°C/W) and electrical stability. Leaving it floating violates the device's thermal and ESD specifications.