Category Archives: IC’s

Double-Sided Cooling for MOSFETs

Emission regulations for the automotive industry are increasingly tightening. To meet these demands, the industry is moving rapidly towards the electrification of vehicles. Primarily, they are making use of batteries and electric motors for the purpose. However, they also must use power electronics for controlling the performance of hybrid and electric vehicles. In this context, European companies are leading the way with their innovative technologies. This is especially so in the development Read more [...]

TI Driver for BLDC Motors

When simple motors were more frequently used, it was relatively easy to design products with them. Controlling such motors was simple, whether it was a brushed DC motor or a single-phase AC motor. There was no need for sophisticated hardware or software for designing a product with a motor. However, sophisticated BLDC or brush-less DC motors are replacing most of the above motors because of several advantages like quiet operation and high efficiency. But these advantages come at the cost of design Read more [...]

Low-Power Circuit Timing using SPXOs

A wide range of electronic devices relies on circuit timing as a critical function. These include microcontrollers, Bluetooth, Ethernet, Wi-Fi, USB, and other interfaces. In addition, circuit timing is essential for consumer electronics, wearables, the Internet of Things (IoT), industrial control and automation, test and measuring equipment, medical devices, computing devices and peripherals, and more. Although designing crystal-controlled oscillators seems an easy process for providing system timing, Read more [...]

Small LED Driver IC

Although Switch-mode and PWM or Pulse Width Modulation methods make very efficient drivers for LEDs, they are also a good source of electromagnetic noise. Many applications require low noise conditions for proper operations, especially those related to medical. These low-noise applications benefit from linear circuits that introduce far lower noise in the system as compared to the Switch-mode or PWM topologies. For driving LEDs linearly, Infineon Technologies AG offers a small LED driver IC, Read more [...]

High-Speed Ceramic Digital Isolator

Isolated systems can communicate digitally among themselves without conducting ground loops or presenting hazardous voltages—simply by using digital isolators. A capacitive isolation barrier exists between the isolated systems. The transmitter side modulates its digital data with a high-frequency signal that allows it to transmit across the capacitive isolation. Receivers on the other side detect the signal, demodulate it to extract the digital data, and use it. Digital isolators offer thick Read more [...]

Using Integrated Power Switches

Power switches are most commonly in demand for their simplicity in turning on and off a voltage rail or for protecting a power path. Engineers find load switches easier to use compared to discrete power MOSFETs. For complete power protection of the system, eFuses offer an integrated approach. The combination of load switches and eFuses offers more than significant PCB space savings. Compared to discrete circuits, the combination of load switches and eFuses, also known as integrated switches, offers Read more [...]

Isolated RS-485 Transceivers

A standard RS-485 transceiver sends and receives digital signals between digital equipment. They use positive and negative signals limited to 5 VDC levels. One can connect them as simple point-to-point configuration or as multi-point connections with two or more devices communicating. RS-485 transceivers allow high-speed communication in electrically noisy environments, as is usual within industrial plants. Each of the two output lines on an RS-485 transceiver uses square waves to send serial Read more [...]

24-Bit Quad-Channel ADC

Analog Devices is offering a 24-bit Quad-Channel ADC, the AD7134, a low noise, precision type, simultaneous sampling Analog to Digital Converter that while offering exceptional functionality and performance, is also easy to use. The AD7134 operates on the continuous-time sigma-delta or CTSD modulation scheme. This helps to remove the traditional requirement of a sampling switched capacitor circuitry preceding the sigma-delta modulator—simplifying the input driving requirement for the ADC. The Read more [...]

Why Low Dropout Regulators?

In this era of high-efficiency switching power supplies and voltage regulators, low dropout (LDO) regulators seem almost out of place. Contrary to popular belief, low dropout regulators are small components, simple to use, and cost-effective for obtaining an output of regulated voltage from an input of higher voltage. For system designers, low dropout regulators offer a simple method of obtaining a voltage from a source that is very close to the output voltage. This is one major reason designers Read more [...]

LTM2893 μModule isolator for ADCs

Analog to digital converters (ADCs) need to float to the common mode of the input signal to absorb the harsh voltage conditions and transients. The best way to do this is to place an isolation barrier between the ADC and the external signal. Even applications that perform under moderate conditions can benefit from the presence of an isolator. The LTM2893 from Linear Technology provides such isolation, improving on system safety, especially when reading from high-resolution successive approximation Read more [...]