Texas Instruments TLV9022DSGR

Overview

TLV9022DSGR from Texas Instruments is a dual-channel, open-drain output precision comparator with rail-to-rail fault-tolerant inputs, 300 µV input offset voltage, 100 ns propagation delay, and 16 µA per-channel quiescent current. It operates from 1.65 V to 5.5 V and supports industrial temperature range (–40°C to +125°C), enabling precise voltage monitoring in motor drive overcurrent detection circuits.

For engineers reviewing the TLV9022DSGR datasheet, TLV9022DSGR pinout, TLV9022DSGR application, or TLV9022DSGR equivalent, key selection criteria include open-drain output compatibility with mixed-voltage logic translation, fault-tolerant input operation up to 6 V beyond supply rails, and low-power dual-comparator integration for space-constrained industrial sensing nodes.

Technical Context

The TLV9022DSGR implements a CMOS-based comparator architecture with ESD-protected, fault-tolerant input stages capable of accepting voltages up to 6 V regardless of supply level - eliminating external clamping diodes in high-side sensing. Its open-drain output supports flexible pull-up configurations below, at, or above V+, enabling bidirectional level shifting between 1.8 V, 3.3 V, and 5 V domains.

Each comparator channel features matched input bias current (5 pA typical) and low input capacitance (2 pF differential), ensuring minimal loading on high-impedance sources like thermistor dividers or photodiode amplifiers. The device maintains stable propagation delay (100 ns typ.) across its full operating temperature and supply range without requiring external hysteresis.

Key Specifications

Pinout & Package

TLV9022DSGR is housed in an 8-pin WSON package (DSG) measuring 2.00 mm × 2.00 mm with an exposed thermal pad on the underside, which must be connected directly to the V− pin for optimal thermal performance and EMI suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV7215M5X/NOPB and TLV3602DBVR, TLV9022DSGR uniquely combines fault-tolerant inputs, open-drain flexibility, and ultra-low 16 µA/channel quiescent current - making it the only option among the three qualified for always-on, high-voltage-tolerant dual-threshold detection in space- and power-constrained industrial nodes.

Availability

TLV9022DSGR is available at Aetrix Electronics and suitable for motor drive protection, smart appliance voltage supervision, and factory automation sensor conditioning requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for TLV9022DSGR 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-accuracy voltage monitoring in harsh industrial environments - emphasizing fault tolerance, rail-to-rail operation, and minimal quiescent consumption without sacrificing speed.

FAQ

What is the maximum input voltage the TLV9022DSGR can tolerate without damage?

The TLV9022DSGR inputs (IN+ and IN−) are fault-tolerant and rated for –0.3 V to 6 V relative to V−, regardless of the V+ supply voltage. This allows direct connection to 12 V or 24 V signals even when powered from 3.3 V, eliminating external protection components. Operation within this range prevents phase inversion and ensures robustness against transients in industrial settings.

Does the TLV9022DSGR require external hysteresis for stable operation?

The TLV9022DSGR does not integrate internal hysteresis, but its low input noise and matched input structure enable stable operation without external hysteresis in most applications. When used with noisy sources (e.g., unfiltered shunt voltages), a small amount of positive feedback (e.g., 10 MΩ from OUT to IN+) adds ~1 mV hysteresis - a design choice retained in TLV9022DSGR implementations where threshold repeatability is critical.

Can the TLV9022DSGR outputs drive an LED directly?

No - TLV9022DSGR features open-drain outputs that can only sink current; they cannot source current. To drive an LED, connect the anode to a positive supply (e.g., 3.3 V or 5 V) and the cathode to OUT1 or OUT2, with a series current-limiting resistor. The device supports ≥4 mA sink capability at 125 mV drop, enabling direct LED indication without additional driver circuitry.

What is the thermal pad connection requirement for the TLV9022DSGR DSG package?

The exposed thermal pad on the underside of the TLV9022DSGR DSG package must be soldered directly to the V− (ground) plane on the PCB. This connection serves dual purposes: improving thermal dissipation (reducing θJA by ~40°C/W) and providing a low-inductance path for ESD current during HBM events. Leaving the pad floating or connecting it to another net degrades both reliability and electrical performance.

How does the TLV9022DSGR compare to the TLV9032 in pin compatibility and functionality?

TLV9022DSGR (open-drain) and TLV9032 (push-pull) share identical pinouts in the DSG package, enabling layout reuse. However, their output stages differ fundamentally: TLV9022DSGR requires external pull-ups and supports wired-OR logic, while TLV9032 actively drives high/low and can source/sink >4 mA. Functionally, TLV9022DSGR is selected for level translation and alarm aggregation; TLV9032 suits direct MOSFET gate driving or capacitive load switching.