To make this alarm circuit, we are going to use LM358 ic and thermistor as our major components. Moreover, it prevents the machines and environment from any hazardous or physical harm. Usually, they are used to determine the temperature readings or levels. The LM358 contains two independent high gain operational amplifiers, low power, dual channel op-amp, high gain with internal frequency compensation. They can also be found in advanced packages SOIC, VSSOP, TSSOP. The differential input voltage range can be equal to that of power supply voltage. It can be considered as one half of LM324 Quad op-amp which contains four op-amps with common power supply. Produced in several types of package design, for bulk DIP and surface mount on a board SO. Brief Description: LM358 is a dual op-amp IC integrated with two op-amps powered by a common power supply. As you know that industries have furnaces, freezing substances, and melting machines, therefore in industries and the industrial process, temperature indicators, and fire alarms should always be there. The LM358 consists of two operational amplifiers, each with 4 pins that have a different purpose. But, some specific places need regular fire safety alarms. Download the free Library Loader to convert this file for your ECAD Tool. So, in this tutorial, we are going to make a simple “Fire Alarm Circuit”.Įvery place needs safety. LM358 Datasheet(PDF) - Texas Instruments WebIndustry-Standard Dual Operational. Applications They are generally used in high risk & high profile environments where any unauthorized entrance is prohibited such as military bases. But, here in this article, we are making an alarm by ourselves. The LM358 IC sends an amplified output signal to one of the three LEDS connected with the output pin (7) of the IC. Several temperature sensors and indicators are available in the market. And, for sure, fire comes above on that list. Many parameters can affect our environmental safety. The LM358 and LM2904 are available in a chip-sized package (8-bump DSBGA) using TI’s DSBGA package technology. The applications of this op-amp are conventional op-amp circuits, DC gain blocks, and transducer amplifiers. This is designed specially to operate a wide range of voltages by a single power supply. Because we also think that safety should always be our priority, no matter what. The LM358 op-amp IC, introduced by national semiconductor, is a low power dual op-amp IC which is easy to use. This is the phrase that you and I hear since our childhood, and that’s okay, completely fine.
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