Texas Instruments TLV9020DCKR

Overview

TLV9020DCKR from Texas Instruments is a single-channel, open-drain precision comparator with rail-to-rail fault-tolerant inputs, 300 µV input offset voltage, 100 ns propagation delay, and 16 µA quiescent current per channel. It operates from 1.65 V to 5.5 V and supports industrial temperature range (–40°C to +125°C), enabling use in low-voltage logic translation and precision voltage monitoring in noisy motor drive or factory automation systems.

For engineers reviewing the TLV9020DCKR datasheet, TLV9020DCKR pinout, TLV9020DCKR application, or TLV9020DCKR equivalent, key selection criteria include its open-drain output architecture, ±0.3 mV max offset at 25°C, fault-tolerant input capability up to 6 V beyond supply rails, and SC-70 (DCK) package compatibility with space-constrained PCB layouts.

Technical Context

The TLV9020DCKR implements a high-speed, low-power comparator core with ESD-hardened input clamps and snapback protection, allowing inputs to safely exceed V+ by up to 1 V without phase inversion or damage. Its open-drain output supports flexible pull-up configurations-below, at, or above V+-enabling level-shifting across voltage domains.

Internally, the device uses a CMOS input stage with 5 pA typical input bias current and 2 pF differential input capacitance, optimized for stability with capacitive loads and immunity to common-mode transients in industrial control feedback loops.

Key Specifications

Pinout & Package

TLV9020DCKR is packaged in a 5-pin SC-70 (DCK) package measuring 1.25 mm × 2.00 mm, with exposed pad not present. The package is lead-free, RoHS-compliant, and optimized for reflow soldering in high-density layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV9020DBVR and LMV7215M5X, TLV9020DCKR delivers superior space efficiency (30% smaller footprint), guaranteed fault tolerance, and lower power-making it optimal for miniaturized, rugged industrial and automotive sensing nodes.

Availability

TLV9020DCKR is available at Aetrix Electronics and suitable for appliance control, factory automation, and motor drive protection requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV9020DCKR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLV902x family was designed specifically for precision, low-power voltage monitoring in harsh environments-emphasizing fault tolerance, rail-to-rail operation, and ultra-low quiescent current for always-on system supervision.

FAQ

What is the maximum input voltage allowed on IN+ and IN− pins of TLV9020DCKR?

The TLV9020DCKR supports fault-tolerant inputs rated from –0.3 V to +6 V relative to V−, regardless of V+ supply voltage. This allows direct connection of 6 V sensor outputs to a 3.3 V-powered TLV9020DCKR without external protection components, as confirmed in Section 5.1 Absolute Maximum Ratings and Figure 4-1 of the datasheet.

Does TLV9020DCKR have rail-to-rail input capability?

Yes, TLV9020DCKR features true rail-to-rail input operation, with a common-mode voltage range specified from (V−) − 0.2 V to (V+) + 0.2 V across the full temperature range (–40°C to +125°C). This enables accurate comparison of signals near or slightly beyond supply rails, such as battery voltage monitoring at end-of-discharge.

Can TLV9020DCKR drive an LED directly?

No, TLV9020DCKR has an open-drain output and cannot source current; it can only sink up to 4 mA (typical) at VOL ≤ 125 mV. To drive an LED, an external pull-up resistor to a positive rail and series current-limiting resistor are required. For direct LED drive, TI's TLV9030 (push-pull version) is recommended instead.

What is the typical propagation delay of TLV9020DCKR at 3.3 V supply?

At VS = 3.3 V, the TLV9020DCKR maintains a typical propagation delay of 100 ns (high-to-low) as specified in Table 5-8 Switching Characteristics. This value is consistent across 1.8 V, 3.3 V, and 5 V supplies due to its internally compensated, supply-independent timing architecture.

Is TLV9020DCKR pin-compatible with other devices in the TLV902x family?

TLV9020DCKR shares the TLV90x0 pinout (IN−, V+, IN+, OUT, V−) with TLV9021, TLV9030, and TLV9031 in DCK/DBV packages. However, TLV9021 uses the alternate TLV90x1 pinout (IN−, V+, IN+, OUT, V− → pin 1–5 mapped differently), so PCB layout must match the exact variant-TLV9020DCKR is not drop-in compatible with TLV9021DCKR.