Texas Instruments TLV7021DPWR

Overview

TLV7021DPWR from Texas Instruments is a single-channel, open-drain output micropower comparator in a 5-pin X2SON (0.8 × 0.8 mm²) package, operating from 1.6 V to 6.5 V supply, consuming only 5 µA quiescent current, with 260 ns propagation delay (tPHL), rail-to-rail input range extending 100 mV beyond VCC, and internal hysteresis - used for precision threshold detection in battery-powered IR receivers and level translation circuits.

For engineers reviewing the TLV7021DPWR datasheet, TLV7021DPWR pinout, TLV7021DPWR application, or TLV7021DPWR equivalent, this page delivers verified functional identity, confirmed X2SON package mapping, validated 5-pin terminal roles, real-world timing and power specs, and two technically documented alternative comparators for low-voltage, ultra-small footprint designs.

Technical Context

The TLV7021DPWR implements a rail-to-rail input stage tolerant up to 100 mV beyond VCC and down to VEE, with no phase reversal under overdriven inputs. Its open-drain output supports pull-up voltages beyond VCC, enabling bipolar-to-single-ended conversion and level shifting across voltage domains.

It integrates a Power-on-Reset (POR) circuit that holds the output in high-impedance state during supply ramp-up or ramp-down, ensuring glitch-free startup. Internal hysteresis of 1.2–14 mV suppresses noise-induced oscillation on slow-moving or noisy input signals.

Key Specifications

Pinout & Package

TLV7021DPWR is packaged in a 5-pin X2SON (DPW) package measuring 0.8 mm × 0.8 mm × 0.4 mm, with wettable flanks and no exposed thermal pad. The ultra-small footprint is optimized for space-constrained portable electronics.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar comparator applications.

Compared with TLV7021DBVR, TLV7021DPWR saves >85% board area and enables tighter thermal design; versus LMV7215MF/NOPB, it reduces quiescent current by 91% and cuts propagation delay by 26%, at the cost of requiring an external pull-up resistor.

Availability

TLV7021DPWR is available at Aetrix Electronics and suitable for mobile phones, IR receivers, and battery-powered threshold detection systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.

Supply support for TLV7021DPWR 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 TLV7021DPWR belongs to TI's TLV702x micropower comparator family, engineered specifically for space- and energy-constrained applications such as portable medical devices, wearables, and industrial sensor nodes where ultra-low IQ and minimal footprint are mandatory.

FAQ

What is the maximum input voltage allowed on IN+ and IN− pins of TLV7021DPWR?

The TLV7021DPWR input pins tolerate voltages from VEE to VCC + 0.1 V under normal operation, and are fault-tolerant up to 5.5 V regardless of VCC state - meaning they remain high-impedance even when VCC is unpowered or ramping. This allows safe interfacing with higher-voltage sensors before system power-up. TLV7021DPWR's input structure avoids damage or latch-up within these limits.

Does TLV7021DPWR require an external pull-up resistor on the OUT pin?

Yes, TLV7021DPWR features an open-drain output and requires an external pull-up resistor to define the high logic level and provide current sourcing capability. The pull-up voltage may exceed VCC (up to 6 V), enabling level translation. TLV7021DPWR's output cannot drive high actively - omission of the pull-up results in undefined or floating output states.

What is the typical propagation delay of TLV7021DPWR at 100 mV input overdrive?

The typical propagation delay (tPHL) of TLV7021DPWR is 260 ns at 100 mV input overdrive, VCC = 5 V, TA = 25°C, and CL = 15 pF. This value is specified in the Switching Characteristics table of the official datasheet (SLVSDM5F). TLV7021DPWR maintains sub-300 ns response across its full operating temperature range (–40°C to +125°C).

Can TLV7021DPWR operate from a 1.6 V supply?

Yes, TLV7021DPWR is fully specified to operate from 1.6 V to 6.5 V supply voltage. At 1.6 V, it maintains 5 µA quiescent current, functional hysteresis, and valid propagation delay - making it suitable for single alkaline or NiMH cell applications. TLV7021DPWR's internal circuitry remains stable and monotonic down to the absolute minimum supply.

How does the Power-on-Reset (POR) circuit affect TLV7021DPWR output behavior during startup?

During power ramp-up, TLV7021DPWR's POR circuit holds the open-drain output in high-impedance state until VCC reaches ≥1.6 V and stabilizes for ≥20 µs. This prevents spurious output transitions that could trigger downstream logic errors. TLV7021DPWR resumes normal comparator operation only after POR release - a key reliability feature for systems requiring deterministic boot behavior.