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ULN2003 Relay Driver IC

Today, I will introduce you to ULN2003. It is basically a relay driver IC and a Darlington array with high voltage and high current. It consists of seven open collector Darlington pairs with common emitters, indicating that ULN2003 has the ability to process seven different relays at a time.

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LED Constant Current Power Supply Circuit Diagram

LED The lamp power supply adopts the constant current drive mode, that is, the output current is constant, and the output voltage changes with the load change. In the case of measurement, the measured voltage value is the 310V DC voltage after AC 220V rectification.

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How the Relay Works

A relay is an electronic control device that has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in an automatic control circuit. It actually uses a small current to control the larger An “automatic switch” of current. Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit.

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Melexis Introduces Relative Pressure Sensor ICs for Measuring Extremely Low Pressures in Automotive Applications

On November 1, 2019, Tysondro, Belgium – Global Microelectronics Engineering Company Melexis announced the introduction of the MLX90821, a relative pressure sensor designed to measure extremely low pressures in automotive applications.

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Intel Releases New Stratix 10 GX 10M FPGAs with Maximum Capacity Worldwide

The Intel Stratix 10 GX 10M FPGA has 10.2 million logic cells and is about 3.7 times denser than the Stratix 10 GX 1SG280 FPGA, which is the most densely packed device in the original Intel Stratix 10 family.

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Qorvo Launches the Most Powerful Power Application Controller (PAC) Series in the Market

Qorvo®, Inc. (Nasdaq: QRVO), a leading provider of core technologies and RF solutions for mobile applications, infrastructure and defense applications, today announced the launch of the newest powerful power application controller on the market (PAC) series PAC5xxx.

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MOUSER Introduces Industry-Standard Ultra-Small IEEE 802.15.4 Microchip SAM R30 Sub-GHz Module

MOUSER, a global distributor of electronic components that specializes in the introduction of new products, will now stock the SAM R30 sub-GHz module from Microchip Technology.

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LM386–Low Voltage Audio Power Amplifier

The LM386M-1 and LM386MX-1 are power amplifiers designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and LM386MX-1 ideal for battery operation.

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