Are you building a system that needs to measure real-world data accurately and reliably to make intelligent, real-time decisions? Microchip's large portfolio of sensors measure data from the analog world and deliver it to the digital world. These sensors feature high-accuracy, low-power performance, real-time protection, robust interfaces and compact packages to satisfy the requirements of industrial, automotive, consumer, data center and communications applications. Their high accuracy makes them an excellent choice for high-precision applications, while their small packages and low power consumption make them ideal for hand-held or battery-powered devices. Explore Microchip's different types of sensors to find the most cost-effective and space-saving option to suit your specific design requirements.

Smoke Detector, CO Detector and Horn Driver ICs

If you are creating a smoke detector, carbon monoxide (CO) detector or security application, Microchip offer a large portfolio of low-power and cost-effective ICs with a variety of features to meet your design’s requirements. These mix-and-match solutions include low-power ionization and photoelectric smoke detector ICs, CO detector ICs and stand-alone horn driver ICs. Microchip's global technical support team is also available to assist you with your smoke detector design.

Smoke Detector ICs

Microchip's ionization and photoelectric smoke detector ICs are complete solutions for creating a low-cost smoke detector, while Microchip's ionization smoke detector front ends can be combined with one of microcontrollers (MCUs) to create a complete design. Whether you are developing an ionization smoke alarm or a photelectric smoke alarm, Microchip offer devices with the following features:

Low battery detection

Reverse battery protection

Temporal continuous tone pattern horn driving

Low-current, low-power operation

SOIC or PDIP package

Interconnect pin

Microchip also provide a selection of integrated devices that include these additional features:

Interconnect for sounding multiple connected units

Sensitivity timer

Internal power-on reset

Reverse battery protection

Diagnostic mode for production calibration

Current Sense Amplifier ICs

The need to accurately measure a dynamic current is critical in a wide variety of applications, such as monitoring or charging batteries, creating a current controlled feedback loop for a power supply or motor, or simply to monitor current levels for safety reasons. Microchip's current sense amplifiers provide a high-flexibility, high-precision solution to maximize efficiency and reliability with a zero-drift architecture, which makes your design more robust across a wide range of environmental conditions and applications.

Highlights

High-voltage current sense amplifiers featuring a wide specified input common-mode range provide the flexibility to address a variety of voltage rails, including overhead for transients

The zero-drift architecture enables ultra-low offsets, allowing you to use smaller shunt resistors without sacrificing resolution

Integrated, on-chip Electromagnetic Interference (EMI) filters reduce high-frequency interference and are ideal for harsh, electrically noisy environments

Current/Voltage/Power Monitor ICs

Systems designers know that before they can manage power, they need to measure it. Microchip's power monitor ICs measure power, voltage, current and energy accumulation. For power monitoring from 0 to 40V, Microchip's high-side current sensors include an I2C interface that is perfect for embedded computing, networking, industrial and artificial intelligence. To get ahead of the thermal curve, Microchip also offer several devices that integrate both current and temperature sensors.

Key Benefits of Microchip's Power Monitoring Solutions

Calculate power, reducing host code overhead

Require no filter circuits, saving circuitry costs

Acumulation registers track power over time

Peak detection with duration setting to provide a unique energy alert

Inductive Position Sensors

Offering significant advantages over existing Hall effect and other magnetic sensors, Microchip's sensor interface ICs measure linear and angular/rotation movement found in a variety of automotive, industrial, aerospace and commercial applications. They are excellent solutions for high-reliability and safety-critical industrial and automotive position sensor applications, such as automobile throttle body, transmission gear sensing, electronic power steering and accelerator pedals. These unique magnetic field sensors give accurate position measurements, are immune to stray magnetic fields and don’t require an external magnetic device. AEC-Q100 Grade 1 (−45 to +125 °C) and Grade 0 (−45 to +150 °C) certified and ISO 26262 compliant solutions are available.

Motor Drivers and MOSFET Gate Drivers for Brushed and Brushless DC Motor Applications

Microchip's motor drivers target applications with Brushed DC (BDC), Brushless DC (BLDC) and stepper motors intended for use in standard temperatures, as well as in demanding high-temperature "under-the-hood" conditions.

Robust and Versatile MOSFET Drivers

Microchip's driver portfolio includes ICs for small DC motors that are controlled directly from the output stages. At the heart of this portfolio are motor driver System Basis Chips (SBCs) with integrated gate drivers or pre-drivers to control separate N-channel MOSFETs. These drivers can be used to control almost any size N-channel MOSFET in a broad range of applications.

Motor Drivers and Power Supply in a Single Device

Microchip's 3-phase brushless motor drivers and brushed DC gate drivers combine a power supply and a microcontroller to create cost-efficient motor driver SBCs. These SBCs also include a communication port that is Grade 0 and Grade 1 rated for use in harsh automotive conditions. Your design will require fewer external components which will reduce your circuit design complexity, lower your overall BOM cost and speed up your time to market.

Flexible Fan Control Options

Improve system performance in computing, mass storage, networking and other applications with Microchip's portfolio of fan controller ICs. Microchip's closed-loop fan controllers feature look-up tables, PID loop control and alerts for locked rotors and blocked air paths. The majority of Microchip's PWM and linear fan controllers feature integrated temperature sensing, making them great all-in-one solutions for a variety of embedded applications.

Temperature Sensors, Temperature Switches and Analog Output

If you need to monitor heat sources in your application, Microchip's single- and multi-channel temperature sensor ICs have the features and flexibility to meet your specific design requirements.

Thermocouple Conditioning ICs

A Plug-and-Play Solution

The thermocouple is one of the oldest and most widely used electronic temperature sensing devices. It consists of two wires, made from two dissimilar metals, that are welded together at one end. This creates a junction where the temperature is measured.

There are many types of thermocouples, each with its own unique characteristics in terms of temperature range, durability, vibration resistance, chemical resistance and application compatibility.  They provide a fast thermal response, are unaffected by vibration, are self-powered and can withstand temperatures ranging from -270°C to 2100°C, making them extremely versatile and ideal choices for use in harsh environmental conditions. They can be used in an array of applications in the industrial, medical, automotive, automated manufacturing processes and consumer markets.

Microchip's innovative portfolio of highly integrated thermocouple conditioning IC solutions simplifies your development and speeds up your product’s time to market.  These devices integrate a precision high-resolution Analog-to-Digital Converter (ADC), a precision high-accuracy temperature sensor (for cold junction compensation) and precision instrumentation that corrects the thermocouple non-linear error characteristics of eight of the most popular thermocouple types used today. An on-board, preprogrammed math engine enables these ICs to accurately measure temperature through real-time non-linearity thermocouple corrections up to a ninth order equation.

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