Texas Instruments TLV9022DGKR

Overview

TLV9022DGKR from Texas Instruments is a dual-channel, open-drain precision comparator with 300 µV input offset voltage, 100 ns propagation delay, and rail-to-rail fault-tolerant inputs supporting ±0.2 V beyond supply rails. It operates from 1.65 V to 5.5 V and draws only 16 µA per channel, enabling low-power voltage monitoring in motor drive overcurrent detection circuits.

For engineers reviewing the TLV9022DGKR datasheet, TLV9022DGKR pinout, TLV9022DGKR application, or TLV9022DGKR equivalent, this page delivers verified electrical specs, dual-comparator pin mapping for VSSOP-8, industrial temperature support (–40°C to +125°C), and direct alternatives for open-drain comparator replacement in space-constrained embedded systems.

Technical Context

The TLV9022DGKR implements a dual independent comparator architecture with ESD-hardened, fault-tolerant inputs capable of withstanding up to 6 V regardless of supply voltage - critical for noisy industrial sensor interfaces. Its open-drain outputs support flexible level translation via external pull-up, including voltages exceeding V+.

Each comparator features 5 pA input bias current, 2 pF differential input capacitance, and 70 dB CMRR at 5 V supply, enabling stable operation in high-impedance voltage divider monitoring applications across the full –40°C to +125°C range without phase inversion on input overvoltage.

Key Specifications

Pinout & Package

DGK package: 8-pin Very Small Outline Package (VSSOP), 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed thermal pad connected to V−.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV7235M5X, TLV9022DGKR delivers dual-channel integration, 25% faster response, 75% lower power, and built-in 6 V fault tolerance - eliminating BOM components. Against TLV9022IDGKR, it offers identical performance at lower cost where automotive qualification is unnecessary.

Availability

TLV9022DGKR is available at Aetrix Electronics and suitable for motor drives, industrial HMIs, and building automation systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for TLV9022DGKR 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 decades of expertise in precision signal chain components.

The TLV902x family was designed specifically for low-power, high-reliability voltage monitoring in harsh industrial environments - emphasizing fault tolerance, rail-to-rail operation, and minimal quiescent current without sacrificing speed.

FAQ

What is the maximum input voltage the TLV9022DGKR can tolerate without damage?

The TLV9022DGKR input pins (IN+, IN−) tolerate −0.3 V to +6 V relative to V−, independent of supply voltage. This fault tolerance eliminates external clamping diodes in 24 V sensor interfaces and protects against transients during hot-swap events. The specification is validated per absolute maximum ratings and applies across the full −40°C to +125°C temperature range.

Does the TLV9022DGKR support rail-to-rail input operation?

Yes, the TLV9022DGKR supports rail-to-rail input common-mode range from (V−) − 0.2 V to (V+) + 0.2 V. This allows direct connection to voltage dividers spanning the full supply, such as monitoring a 5 V rail with a 2.5 V reference, without external level-shifting circuitry. Input bias current remains stable at 5 pA across this range.

Can the TLV9022DGKR outputs drive an LED directly?

No - the TLV9022DGKR has open-drain outputs that sink current only; they cannot source current. To drive an LED, connect the anode to a positive supply (e.g., 3.3 V) and the cathode to OUT1 or OUT2. When the comparator asserts, the output pulls low and illuminates the LED. A current-limiting resistor must be included in series with the LED.

What is the thermal pad connection requirement for the TLV9022DGKR DGK package?

The exposed thermal pad on the TLV9022DGKR's VSSOP-8 (DGK) package must be soldered directly to the V− (ground) plane. This connection provides both thermal dissipation (reducing θ_JA to 215.8°C/W) and electrical stability - TI's datasheet explicitly states "Connect exposed thermal pad directly to V− pin." Failure to do so degrades thermal performance and may cause parametric drift at high ambient temperatures.

How does the TLV9022DGKR differ from the TLV9032 dual comparator?

The TLV9022DGKR features open-drain outputs, while the TLV9032 uses push-pull outputs. This makes TLV9022DGKR suitable for wired-OR configurations and level translation, whereas TLV9032 can actively drive high/low without pull-ups. Both share identical input specs (300 µV offset, 5 pA bias, fault tolerance), supply range (1.65–5.5 V), and propagation delay (100 ns). Pinout is identical in DGK packages.