STMicroelectronics’ TDA7901 automotive amplifier integrates a buck controller for class-G power switching and supports high-definition audio — a market-unique combination for ideal listening and high efficiency. In class-G operation, the TDA7901 buck controller automatically optimizes the voltage supplied to the bridge-tied load (BTL) power-stage, depending on the audio-signal level. The resulting smooth, analog sound comes with…
Vishay adds to its TNPV e3 series of thin-film, flat-chip resistors
Vishay Intertechnology has announced that it has extended its TNPV e3 series of automotive-grade, high-voltage, thin-film, flat-chip resistors with a smaller 0805 case size. The Vishay Draloric TNPV0805 e3 is the industry’s first such device in the compact 0805 case size to combine high-operating voltages to 450 V with tight tolerance of ± 0.1 %…
Diodes introduces new series of low drop-out voltage regulators
Diodes Incorporated has added to its portfolio of power-management products with the introduction of a new series of low drop-out (LDO) voltage regulators. The new DIODES AP7387 devices are used in applications that include cordless vacuum cleaners, smoke detectors, power tools, and various other household appliances. The devices have an input voltage range spanning from…
STMicroelectronics’ new dual high-side switches provide flexibility
STMicroelectronics’ latest high-side switches, the IPS2050H and IPS2050H-32, permit two programmable current-limit values for smart driving of capacitive loads that draw high startup current. These new dual-channel switches have an input-voltage range from 8 to 60V to withstand up to 65V on the input pin, ensuring flexibility and robust performance in industrial applications. The integrated power MOSFET…
Nexperia’s new Zener diodes extend battery-time and save PCB space
Nexperia, an expert in essential semiconductors, has announced a comprehensive range of low-current voltage regulator diodes. The 50 µA Zener diode range is available in three different surface-mountable (SMD) package options, in an ultra-small discretes flat no-leads (DFN) package and AEC-Q101 qualified parts — providing the ultimate in customer choice and flexibility. Specified at a…
Diodes offers new high-frequency, 100V-rated gate driver
Diodes Incorporated has introduced the DGD0579U high and low-side gate driver. This high-frequency device, which has a built-in bootstrap diode, is capable of driving two N-channel MOSFETs in the half-bridge configurations that are commonly used for motor control and DC-DC power delivery functions. It also targets high-power applications, such as cordless power tools, e-bikes, and…
STMicroelectronics launches digitally programmable, synchronous buck converter
Featuring a synchronous topology for optimum efficiency, the new STMicroelectronics STPD01 DC/DC buck converter is digitally programmable for USB power-delivery (PD) applications up to 60W. With a wide input-voltage range of 6 to 26.4V, the STPD01 offers flexibility to address applications such as AC multiport adapters, USB hubs, PC monitors, and smart televisions. The output…
Toshiba’s voltage-driven photorelays offer one of industry’s smallest mounting areas
Toshiba Electronic Devices & Storage Corporation has launched three 4-Form-A, voltage-driven photorelays, “TLP3407SRA4,” “TLP3412SRHA4,” and “TLP3475SRHA4,” that have one of the smallest mounting areas in the industry. Volume shipments start today. The new products are Toshiba’s first-ever four-circuit, 4-Form-A relays. Housed in a newly-developed small S-VSON16T package, they feature a typical mounting area of 12.5mm2,…
Nexperia offers range of A-selection Zener diodes for precise voltage
Nexperia, the expert in essential semiconductors, has announced the industry’s first range of A-selection Zener diodes. With a tolerance of just ±1%, the BZT52H-A (SOD123F) and BZX384-A (SOD323) series provide a higher precision voltage reference compared to the B (±2%) and C (±5%) variants. Matching the rising demands of mobile, portable/wearable, automotive and industrial applications…
Diodes launches low-dropout voltage regulator for automotive sector
Diodes Incorporated has introduced the AP7347DQ, low-dropout (LDO) voltage regulator, which is highly optimized for demanding noise-sensitive power-related automotive applications. The new automotive-compliant, high-output accuracy LDO is AEC-Q100 Grade 1 qualified, manufactured in IATF 16949 certified facilities, and fully supports automotive production part approval processes. These qualities make it well-suited to design in to a…
Vishay’s new high-voltage chip divider improves TC tracking performance
Vishay Intertechnology has introduced the industry’s first high-voltage chip divider to be offered in a ribbed, molded package with compliant surface-mount leads. Designed to reduce component counts and improve TC tracking performance and ratio stability in automotive and industrial equipment, the Vishay Techno CDMM delivers a maximum working voltage of 1500 V in the 4527 case…
STMicroelectronics offers new space-saving, isolated SiC gate driver
STMicroelectronics’ STGAP2SiCSN single-channel gate driver, optimized to control silicon-carbide MOSFETs, now comes in a space-saving, narrow-body SO-8 package and delivers reliable performance with accurate PWM control. As SiC technology becomes widely adopted to boost power-conversion efficiency, the STGAP2SiCSN simplifies design, saves space, and enhances robustness and reliability in energy-conscious power systems, drives, and controls. Applications include…
Vishay’s high-voltage chip resistors save board space and component count
Vishay Intertechnology has introduced a new series of AEC-Q200-qualified, thick-film chip resistors with operating voltages up to 3 kV in the 2010 and 2512 case sizes. With their high-operating voltages, devices in the Vishay Draloric RCV-AT e3 series can be used in place of standard resistor chains. This allows designers to save board space in…
Nexperia’s offers new bipolar junction transistors in DPAK-package
Nexperia, an expert in essential semiconductors, has announced nine new power bipolar transistors, extending its portfolio of products in the thermally and electrically advantageous DPAK package — now covering applications from 2 A to 8 A and from 45 to 100 V. The new MJD series parts are pin-to-pin compatible with other MJD devices in…
Infineon introduces new 650 V TRENCHSTOP switches in discrete housing
Infineon Technologies recently introduced its new 650 V TRENCHSTOP 5 WR6 family in a discrete housing. The family comes in a TO-247-3-HCC package and offers a broad portfolio comprising 20 A, 30 A, 40 A, 50 A, 60 A, and 70 A current ratings. The devices can easily be used for replacing previous technologies like…
STMicroelectronics launches flexible automotive LED driver
STMicroelectronics’ ALED6000 single-chip automotive LED driver with integrated DC/DC converter is a low-BoM (Bill of Materials) solution that allows design flexibility and keeps the lighting intensity consistent as electrical conditions within the vehicle fluctuate. Suitable for exterior lighting such as daytime running lights, headlights, rear lights, stop lights, and turn signals, as well as interior lighting, the…
Maxim expands its expands its MAXSafe Technology monitoring line
Maxim Integrated Products, Inc. has expanded the MAXSafe Technology line with the MAX22530, an isolated, field-side self-powered 12-bit system monitor. Featuring four channels, the MAX22530 provides isolated system monitoring to improve accuracy 50x and to reduce solution size by 40 percent by integrating five components into a single IC. Automation system designers continually seek ways…
Voltage Doubler Circuit Using IC 4049
The circuit described here would produce an output voltage having twice the magnitude of the input voltage. In this circuit, we are using 6 Volts as input supply [[wysiwyg_imageupload::]]and we are getting 12 volts as its output. It is based on the popularly used hex inverter CD4049 IC. This can be made with the help of single IC with few more components.CD4049 contains six inverter gates in one package as shown in diagram. In this, pin 3 is input and 2 is for output. For first gate similarly pin 5 is input and pin 4 is output for second gate similarly we have four more gates. Pin1 1 is for supply voltage and pin 8 is connected to ground. Pin 13 and 16 are unused.
Insight – How SMPS works
A computer is an assembly of several essential and optional electronic parts such CD drive, motherboard, hard disk etc. Every peripheral has its own power requirement and to serve the same regulated power supplies such as linear power supplies, ferro resonant power supplies and switched mode power supplies, are used.Switched mode power supplies are unanimously preferred as computer power supply units for their small size and high efficiency. SMPS units dissipate less power by employing a transformer that regulates input voltage and provides constant current to the peripherals attached to the computer.
Insight – How Potentiometer works
Potentiometer also known as pot is generally used in circuits to provide variable resistance or variable voltage. The heart of the potentiometer is a resistive strip inside it through which one can adjust the amount of resistance/voltage to pass in a circuit through it. When we rotate the external shaft, the position of the brush varies accordingly. The resistance applied in a circuit depends on the position of the brush. The brush is designed so as to connect the resistive strip to the middle terminal via inner conductive circular metal plate which in turn is connected to the middle terminal of potentiometer at every instant.