LMV7231

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Hex Window Comparator with 1.5% Precision and 400mV Reference

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Product details

Parameters

Number of channels (#) 6 Output type Open-drain Propagation delay time (µs) 5.6 Vs (Max) (V) 5.5 Vs (Min) (V) 2.2 Vos (offset voltage @ 25 C) (Max) (mV) 6 Iq per channel (Typ) (mA) 0.0076 Input bias current (+/-) (Max) (nA) 5 Rail-to-rail In, Out Rating Catalog Operating temperature range (C) -40 to 125 Features Hysteresis, Internal Reference, Small Size VICR (Max) (V) 5.5 VICR (Min) (V) -0.3 open-in-new Find other Comparators

Package | Pins | Size

WQFN (RTW) 24 16 mm² 4 x 4 open-in-new Find other Comparators

Features

  • (For VS = 3.3 V ±10%, Typical Unless Otherwise
    Noted)
  • Undervoltage and Overvoltage Detection
  • High Accuracy Voltage Reference: 400 mV
  • Threshold Accuracy: ±1.5% (Maximum)
  • Wide Supply Voltage Range 2.2 V to 5.5 V
  • Input and Output Voltage Range Above V+
  • Internal Hysteresis: 6 mV
  • Propagation Delay: 2.6 µs to 5.6 µs
  • Supply Current 7.7 µA Per Channel
  • 24-Lead WQFN Package
  • Temperature Range: –40°C to +125°C
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Description

The LMV7231 device is a 1.5% accurate Hex Window Comparator which can be used to monitor power supply voltages or any other analog output, such as an analog temperature sensor or current-sense amplifier. The device uses an internal 400-mV reference for the comparator trip value. The comparator set points can be set through external resistor dividers. The LMV7231 has 6 outputs (CO1 to CO6) that signal an undervoltage or overvoltage event for each power supply input. An output (AO) is also provided to signal when any of the power supply inputs have an overvoltage or undervoltage event. This ability to signal an undervoltage or overvoltage event for the individual power supply inputs, in addition to an output to signal such an event on any of the power supply inputs, adds unparalleled system protection capability.

The 2.2-V to 5.5-V power supply voltage range, low supply current, and input or output voltage range above V+ make the LMV7231 ideal for a wide range of power supply monitoring applications. Operation is ensured over the –40°C to +125°C temperature range. The device is available in a 24-pin WQFN package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet LMV7231 Hex Window Comparator With 1.5% Precision and 400-mV Reference datasheet (Rev. F) Jan. 12, 2016
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012
User guide LMV7231 Evaluation Board Jan. 27, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
99
Description

This evaluation board contains the LMV7231 Hex Window Comparator and allows for evaluation of the device.

Features

Contents:

  • Assembled LMV7231 Evaluation Board

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

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Package Pins Download
WQFN (RTW) 24 View options

Ordering & quality

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