Texas Instruments TLV1811DBVR

Overview

TLV1811DBVR from Texas Instruments is a single-channel, 40V rail-to-rail input comparator with push-pull output, 5 μA quiescent current per channel, 420 ns propagation delay (at 100 mV overdrive), and Power-On Reset (POR) for deterministic startup in motor drive voltage monitoring circuits.

For engineers reviewing the TLV1811DBVR datasheet, TLV1811DBVR pinout, TLV1811DBVR application, or TLV1811DBVR equivalent, this page delivers verified electrical specs, package-validated pin functions, real-world use cases in industrial control, and two confirmed alternative comparators with documented functional and interface differences.

Technical Context

The TLV1811DBVR implements a rail-to-rail input stage with ±0.2 V common-mode range beyond supply rails and a push-pull output capable of sourcing/sinking ≥4 mA while maintaining VOL ≤ 250 mV and VOH ≤ 250 mV at full temperature range (–40°C to +125°C). Its internal POR circuit holds the output low until V+ reaches ≥1.7 V and remains active for up to 200 μs during power-up/down transitions.

It operates across 2.4 V to 40 V total supply voltage, draws only 5–11 μA per channel depending on output state and temperature, and features 150 fA input bias current with 500 μV typical input offset voltage - enabling precision threshold detection in high-impedance sensor interfaces without external amplification.

Key Specifications

Pinout & Package

TLV1811DBVR is supplied in the SOT-23-5 (DBV) package, measuring 1.60 mm × 2.90 mm, with standard "North West" pinout orientation and no exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV1811DBVT, TLV1811DBVR offers identical performance in a smaller-quantity reel format ideal for design validation; versus LMV7219M5X, TLV1811DBVR delivers 40 V operation, 2.7× faster response, half the quiescent current, and built-in POR - making it the preferred choice for robust, low-power industrial supervision.

Availability

TLV1811DBVR is available at Aetrix Electronics and suitable for motor drive voltage monitoring, industrial overvoltage protection, and appliance safety interlock systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLV1811DBVR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TLV181x family was designed specifically for ultra-low-power, high-voltage industrial supervision - combining 40 V operation, rail-to-rail inputs, push-pull outputs, and integrated POR to replace discrete comparator + reset IC solutions in motor drives and factory automation.

FAQ

What is the maximum supply voltage rating for TLV1811DBVR?

The TLV1811DBVR supports a total supply voltage (V+ to V−) of up to 40 V, with absolute maximum rating of 42 V. This enables direct interfacing with 24 V and 36 V industrial buses without external regulators. Operation above 40 V risks permanent damage, and the device must not be subjected to transient overvoltages exceeding 42 V, even momentarily. TLV1811DBVR maintains full functionality across its entire 2.4–40 V operating range.

Does TLV1811DBVR include Power-On Reset (POR), and how does it behave?

Yes, TLV1811DBVR integrates a dedicated Power-On Reset circuit that holds the push-pull output low until the supply voltage (V+) rises above 1.7 V and remains active for up to 200 μs after crossing that threshold. During power-down, POR activates again when V+ falls below 1.7 V, ensuring the output stays low. This prevents false triggering in motor control or safety-critical circuits during unstable supply conditions. TLV1811DBVR's POR is internal and requires no external components.

Can TLV1811DBVR drive a MOSFET gate directly?

Yes, TLV1811DBVR's push-pull output can directly drive low-to-mid-side N-channel MOSFET gates, sourcing/sinking ≥4 mA with VOL ≤ 250 mV and VOH ≤ 250 mV across –40°C to +125°C. For typical 10 nC gate charge MOSFETs switching at ≤10 kHz, no external buffer is needed. However, avoid shorting the output to V+ or V− under high supply voltages (>12 V) - a series current-limiting resistor (e.g., 100 Ω) is recommended if gate shorts are possible. TLV1811DBVR's 420 ns propagation delay supports fast switching response.

What is the input voltage range specification for TLV1811DBVR?

TLV1811DBVR features rail-to-rail inputs with a common-mode range from V− − 0.2 V to V+ + 0.2 V. This means both IN+ and IN− accept signals extending 200 mV beyond the supply rails - critical for high-side sensing or direct connection to unregulated sources. The input stage includes ESD clamps to V+ and V−, so input voltages must not exceed the rails by more than 0.2 V during normal operation. TLV1811DBVR maintains phase integrity across this full range with no inversion.

How does TLV1811DBVR differ from TLV1821DBVR?

TLV1811DBVR has a push-pull output (sinks and sources current), while TLV1821DBVR uses an open-drain output (sink-only). TLV1811DBVR eliminates external pull-up resistors and directly drives logic or LEDs; TLV1821DBVR enables wired-OR configurations and level translation up to 40 V independent of supply. Both share identical supply range (2.4–40 V), quiescent current (5 μA), propagation delay (420 ns), and POR behavior. TLV1811DBVR is preferred when driving capacitive loads or sourcing current; TLV1821DBVR suits multi-comparator logic aggregation.