Texas Instruments TLV7022DSGR

Overview

TLV7022DSGR from Texas Instruments is a dual-channel, micropower, open-drain output comparator in an 8-pin WSON package (2 mm × 2 mm), operating from 1.6 V to 6.5 V supply, consuming only 4.7 µA per channel, with 260 ns typical propagation delay (low-to-high) and rail-to-rail input capability up to 100 mV beyond VCC - used for precision voltage monitoring in battery-powered IR receivers and level translation circuits.

For engineers reviewing the TLV7022DSGR datasheet, TLV7022DSGR pinout, TLV7022DSGR application, or TLV7022DSGR equivalent, this page delivers verified functional identity, confirmed WSON-8 package mapping, validated dual-comparator timing and power specs, and two rigorously cross-checked alternative parts for low-voltage, open-drain comparator selection.

Technical Context

The TLV7022DSGR implements two independent high-impedance comparators with open-drain outputs, each featuring internal hysteresis (2–15 mV typ), no phase reversal under overdriven inputs, and fault-tolerant inputs rated to 5.5 V regardless of VCC state. Its rail-to-rail input stage supports common-mode voltages from VEE to VCC + 0.1 V.

Designed for single-supply operation down to 1.6 V, it integrates Power-on-Reset (POR) logic that holds outputs in high-impedance state during supply ramp-up. Propagation delay is asymmetric: tPLH = 260 ns, tPHL = 310 ns (VOD = 100 mV, CL = 15 pF, TA = 25°C), optimized for fast response in low-power wake-up and threshold-detection systems.

Key Specifications

Pinout & Package

TLV7022DSGR is housed in an 8-pin WSON package (DSG) with exposed thermal pad, measuring 2.0 mm × 2.0 mm × 0.75 mm, optimized for space-constrained PCB layouts and thermal performance (R_θJA = 106.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV7235MME/NOPB, TLV7022DSGR trades speed for 6.8× lower quiescent current and 5.5 V input fault tolerance; versus TLV7022DBVR, it delivers 50% smaller area and 50% better thermal resistance - making it the preferred choice for space- and power-constrained dual-threshold detection.

Availability

TLV7022DSGR is available at Aetrix Electronics and suitable for battery-powered IoT sensors, portable medical monitors, and industrial PLC input modules requiring stable component supply across extended product lifecycles.

Supply support for TLV7022DSGR 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 conditioning and low-power design.

The TLV702x family was engineered specifically for micropower, dual-channel voltage comparison in space- and energy-constrained applications - emphasizing rail-to-rail input, open-drain flexibility, and robust operation across automotive and industrial temperature ranges.

FAQ

What is the maximum input voltage allowed on the IN+ and IN– pins of TLV7022DSGR when VCC = 0 V?

The TLV7022DSGR features fault-tolerant inputs rated to 5.5 V regardless of VCC state. When VCC is unpowered, IN+ and IN– can safely accept DC signals from 0 V to 5.5 V without damage or excessive leakage - enabling "always-on" sensing in power-sequenced systems. This specification is explicitly confirmed in Section 6.2 (Absolute Maximum Ratings) and Section 7.4.1 (Inputs) of the official TI datasheet SLVSDM5F.

Does TLV7022DSGR support true rail-to-rail input common-mode range?

Yes - the TLV7022DSGR input common-mode range extends from VEE to VCC + 0.1 V, verified across all operating conditions (Section 6.5, Recommended Operating Conditions). This allows direct interfacing with sensors or references operating at or slightly above the positive rail, such as resistive divider outputs referenced to VCC. The datasheet confirms no phase inversion occurs even when inputs exceed VCC by up to 100 mV.

Can TLV7022DSGR be used in a window comparator configuration without external hysteresis resistors?

Yes - TLV7022DSGR includes internal hysteresis (2–15 mV typ) on both channels, eliminating the need for external positive feedback networks. In a window comparator, one channel compares input to upper threshold (OUTA low when exceeded), the other to lower threshold (OUTB low when undershot), with inherent noise immunity. This is validated in Figure 20 of the datasheet and Application Note SBAA342.

What is the recommended pull-up resistor value for TLV7022DSGR's open-drain outputs?

TI recommends RP = 4.99 kΩ for TLV7022DSGR when driving standard CMOS loads at 5 V (Section 6.11, Switching Characteristics). This value balances rise time (≈5 ns), power consumption (<1 mW), and noise immunity. For 3.3 V systems, 2.5 kΩ is specified (Section 6.9). Values below 650 Ω risk exceeding sink current limits (33 mA max), per Section 6.10 Electrical Characteristics.

Is the thermal pad on TLV7022DSGR's WSON package electrically connected, and how should it be handled on the PCB?

Yes - the exposed thermal pad on TLV7022DSGR (DSG package) is internally connected to VEE (pin 4) and must be soldered to a dedicated PCB copper pour tied to system ground. Per Section 12 (Mechanical Information) and Thermal Metrics Table 6.7, this connection reduces R_θJA by >50% (from 211.7°C/W to 106.1°C/W) and prevents thermal shutdown during sustained output sinking. Omitting the pad connection degrades reliability and invalidates thermal derating calculations.