App note: How to measure the efficiency of a multiphase buck converter integrated circuit

Tips from Maxim Integrated on how to measure efficiency on complicated multiphase converters. Link here Due to the nature of multiphase buck converters, perceived efficiency varies for a static operating condition depending on the load and output voltage measurement connections, as well as the symmetry of the PCB layout. An engineer evaluating multiphase buck converters […]

App note: How to save power in high-precision measurements

App note from Maxim Integrated on achieving a lower power sensing in analog front end. Link here In precision signal conditioning and measurement applications, a delta-sigma ADC has often been preferred over a SAR ADC on account of high-resolution output and highly integrated internal blocks such as a PGA or GPIO voltage reference. However, in […]

App note: Flash analysis techniques and best practices

App note from Infineon on the basics of flash memories and their failure analysis recommendations. Link here (PDF) Nonvolatile memory devices (like Flash) are often used in embedded applications that rely on the storage of system configuration, dynamic data, or both. This data needs to be retained during a power interrupt or power cycle. In […]

App note: Designing with cypress quad SPI (QSPI) F-RAM™

App note from Infineon about quad SPI, an enhanced SPI protocol that provides four times data throughput at higher frequencies. Link here (PDF) In order to manage the wide range of multimedia, graphics, and other data intensive content, embedded systems have evolved to offer more sophisticated features. These features place extra demands on the often-limited […]

App note: Solid electrolytic capacitors designed for high temperature applications

New development and manufacturing process produces extended temperature endurance of solid capacitors discuss in this app note from KEMET. Link here (PDF) For decades the maximum recommended operating temperature of solid electrolytic capacitors was 125°C. Responding to needs in the automotive and downhole drilling industries passive component manufacturers developed surface mount tantalum capacitors rated at […]

App note: Supercapacitor leakage current and self discharge characteristics

App note from KEMET about supercapacitor’s leakage and self discharge and their differences in order to take account the back-up time of an application. Link here (PDF) Supercapacitor is widely used for RTC backup application to provide power to RTC circuit in electronics when the power source to the system is disconnected. Self-discharge characteristics is […]

App note: Pulse load handling for fixed linear resistors

Technical note from Vishay about linear resistor handling pulsed currents. Link here (PDF) The power and thermal behavior of fixed linear resistors are mostly based on DC or RMS loads, but pulse loads, like single energy pulse or a continuous flow of pulses, become more and more an important factor in professional electronics.

App note: Using the Si72xx hall-effect magnetic position sensors

App note from Silicon Labs on their hall-effect Si72xx magnetic sensor to sense position, count revolution and security system seal tamper sensing. Link here (PDF) These devices all measure magnetic field in the axis perpendicular to the package. All of these parts share the attributes of low power, high sensitivity, and low noise. The simplest […]

App note: PN7150 hardware design guide

A hardware design guide using NXP’s PN7150 full featured NFC controller. Link here (PDF) This document is intended to provide an overview on how to integrate the NFC Controller PN7150 from hardware perspective. It presents the different hardware design options offered by the IC and provides guidelines on how to select the most appropriate ones […]

App note: Lowering audible noise in automotive applications with TI’s DRSS technology

Texas Instruments’ switching noise on audio reduction using spread spectrum tech. Link here Automotive systems have many regulations and requirements, from electromagnetic interference (EMI) to thermals to functional safety, but one consideration that stands above the rest when it comes to immediate consumer dissatisfaction is audible noise. In this technical article, I’ll discuss common sources […]

App note: How to design an accurate DC power supply

Technical designs from Texas Instruments on accurate DC power supplies. Link here Test and measurement applications like battery test, electrochemical impedance spectroscopy and semiconductor test require accurate current- and voltage-output DC power supplies. The current and voltage control accuracy of the equipment need to be better than ±0.02% of the full-scale range over a ±5°C […]

App note: Terminations for advanced CMOS logic

App note from ON semiconductor on proper terminations when using advance CMOS logic to minimize power consumption. Link here (PDF) Advanced CMOS logic such as ON Semiconductor’s FACT® logic, has extended CMOS performance to the level of advanced bipolar technologies. While high−performance design rules that are currently utilized for bipolar designs are also applicable to […]

App note: Battery fuel gauge [Smart LiB Gauge] for 1-Cell Lithium-ion/Polymer with LC709204F

New app note from ON Semiconductor about thier LC709204F fuel gauge chip. Link here (PDF) LC709204F is a Fuel Gauge for 1−Cell Lithium−ion/Polymer batteries. It is a part of our Smart LiB Gauge family of Fuel Gauges which measure the battery RSOC (Relative State Of Charge) using its unique algorithm called HG−CVR2. The HG−CVR2 algorithm […]

App note: Industrial digital inputs with the MAX22191

App note from Maxim Integrated on their parasitically powered digital input interface chip which are used favorably on industrial applications. Link here A digital input (DI) is a circuit designed to receive a binary signal transmitted from an industrial sensor and translate that input into a reliable logic signal for a programmable logic controller (PLC) […]

App note: Designing a flyback converter with the MAX17291 micropower boost converter IC

App note from Maxim Integrated about designing isolated flyback converter using their micropower boost converter IC for auxiliary and industrial applications. Link here Flyback converters are widely used in isolated DC/DC applications because of their relative simplicity and low costs compared to alternative isolated topologies. The RS485, isolated CAN transceivers, auxiliary power supplies, etc. are […]

App note: How to multiplex a 1-Wire master into numerous channels

App note from Maxim Integrated on using only one 1-wire master on multiple 1-wire channels. Link here 1-Wire® networks are originally designed for communication with a single 1-Wire master and numerous 1-Wire slaves on a single 1-Wire bus. Preferably, a linear topology, which contains insignificant stubs, is best for a 1-Wire network. However, a star […]

App note: Detecting over-power scenarios using Maxim’s quad channel power monitors and voltage supervisors

App note from Maxim Integrated on their power monitoring and supervisory ICs. Link here It is inevitable to have a voltage protection circuit and a power monitoring circuit in any advanced electronics application such as Tablets, Smartphones and Notebooks etc. Power monitors are generally used in all applications that require to measure average power through […]