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Jul 18 2020

LM393 Comparator: A Detailed Introduction

Introduction

The LM393 comparator can be regarded as equivalent to the most popular version of the LM358 operational amplifier. Although any operational amplifier can be used as a voltage comparator, the LM393 comparator proves its advantage by providing an open collector output to make it suitable for driving loads.

The output transistor can drive loads up to 50V and 50mA and is suitable for driving most TTL, MOS and RTL loads. The transistor can also isolate the load from the system ground.

This Vedio Introduces LM393 Dual Comparator

with Open Collector Output from Integrated Circuit


Catalog

Introduction

CAD CAE Symbols

Document and Media

ECCN UNSPSC

LM393 Pin Configuration and Functions

Popularity by Region

Basic Parameters

Product Manufacturer

Features

Product Range

Advantages

Alternative Models

Functional Block Diagram

 


Document and Media

Component Datasheet

LM393 Datasheet

Application Notes

Application Design Guidelines for LM393


LM393 Pin Configuration and Functions

The LM393 datasheet provided above is for your reference, so that you can understand the physical dimensions of all packages in more detail. The configuration of all 8 pins and the function of each pin are as follows:

The function of LM393 pins are as follows:


Basic Parameters

Number of channels 2
Output type Open-collector
Propagation delay time  1.3 µs
Vs (Max) 36 V
Vs (Min) 2 V
Vos (offset voltage @ 25 C) (Max) 5 mV
Iq per channel (Typ) 0.225 mA
Input bias current (+/-) (Max) 50 nA
Rail-to-rail Out
Rating Catalog
Operating temperature range  0℃ to 70℃
Features Standard comparator
VICR (Max) 34.5 V
VICR (Min) 0 V
Approx. price 1ku | 0.06 US$

Features

  • Improved specifications of B-version

– Maximum rating: up to 38 V

– ESD rating (HBM): 2k V

– Low input offset: 0.37 mV

– Low input bias current: 3.5 nA

– Low supply-current: 200 µA per comparator

– Faster response time of 1 µsec

– Extended temperature range for LM393B

– Available in tiny 2 x 2mm WSON package

  • B-version is drop-in replacement for LM293,LM393 and LM2903, A and V versions
  • Common-mode input voltage range includesground
  • Differential input voltage range equal to maximumrated supply voltage: ±38 V
  • Low output saturation voltage
  • Output compatible with TTL, MOS, and CMOS

Advantages

  • Vacuum robot
  • Single phase UPS
  • Server PSU
  • Cordless power tool
  • Wireless Infrastructure
  • Applicances
  • Building Automation
  • Factory automation & control
  • Motor drives
  • Infotainment & cluster

Functional Block Diagram


CAD CAE Symbols

Package

Pins

Download

PDIP (P)

8

View options

SO (PS)

8

View options

SOIC (D)

8

View options

TSSOP (PW)

8

View options

VSSOP (DGK)

8

View options


ECCN UNSPSC

Description

Value

ECCN Code

EAR99

HTS Code

8542.39.00.01


Popularity by Region


Product Manufacturer

Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its headquarters are in Dallas, Texas, United States. TI is one of the top ten semiconductor companies worldwide, based on sales volume. Texas Instruments's focus is on developing analog chips and embedded processors, which accounts for more than 80% of their revenue. TI also produces TI digital light processing (DLP) technology and education technology products including calculators, microcontrollers and multi-core processors. To date, TI has more than 43,000 patents worldwide.


Product Range

Devices

Boards

Developer Tools

ARM ® PROCESSORS

AUTOMOTIVE PRODUCTS

IDENTIFICATION & SECURITY

Kinetis Cortex®-M Microcontrollers

In-Vehicle Network

NFC

LPC Cortex-M Microcontrollers

Microcontrollers and Processors

RFID


Alternative Models

  • LM741
  • LM358
  • LM339
  • LM324

 

 

After reading the blog, have you better understand LM393? If you are also interested in how to DIY your solar tracking car by using LM393 , you may wish to browse right here right now!

Finally, if you have any questions about LM393, please do not hesitate to leave a message in the comment section below!

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