NOT RECOMMENDED FOR NEW DESIGNS
Ultra-Low Power 1.8V, 400kHz Op Amp With Industry Standard Pin-Out
MP8104 continues to be in production for existing customers. Please consider this alternative for new designs:
Ultra Low Power 1.8V 600KHz Op Amp
Features & Benefits
- Single Supply Operation: 1.8V to 5.5V
- TSOT23-5 Package
- 600kHz -3dB Bandwidth
- 7.5µA Supply Current
- Rail-to-Rail Output
- Unity-Gain Stable
- Input Common Mode to Ground
- Drives up to 1000pF of Capacitive Loads
… and many more!
Active Part Numbers:
Meaning of P & Z
AIR PURIFIERS & HUMIDIFIERS
Air purifiers and humidifiers must be able to reliably improve air quality for end users. The best designs also offer improved energy efficiency, convenience, and low noise. As more and more appliances are expected to be smart-home ready, consumers are demanding new features such as wireless connectivity for ease of control. To meet and exceed customer expectations, designers are challenged with f...
MOBILE WALL CHARGERS
Mobile devices are one of todays largest technology markets, and mobile wall chargers are a key accessory to keep those devices running. It is crucial that these chargers offer not only the fastest available safe charging rates, but also accurately sense and respond to battery charge information to protect the device battery from damage. The combination of consumer expectations and increased power...
Fitness machines can be a key component of medical treatment and physical wellness. State-of-the-art medical systems often include next-generation user interfaces, real-time sensing and biometrics, and multi-standard connectivity. With growing concerns about the price of healthcare, reliability and cost are also crucial factors for customers. And of course, to help enhance the abilities of healthc...
WEARABLE FITNESS & ACTIVITY MONITORS
Wearable fitness and activity monitors compose a sizeable portion of the growing wearables market. These small devices provide consumers a highly convenient option to track and monitor health information, send and receive notifications, and more. They can be worn on the wrist or clipped to a belt, and typically offer multi-standard wireless connectivity — from Bluetooth and Wi-Fi to cellular baseb...
CONSUMER BATTERY CHARGERS
Consumer battery chargers provide at-home recharging for enabled AA and AAA batteries. It is crucial that these devices offer not only the fastest available safe charging rates, but also accurately sense and respond to battery charge information to protect the batteries from damage. In addition, consumers expect them to be highly efficient and have low standby power consumption in a small solution...
THERMAL IMAGING CAMERAS
Thermal imaging cameras sense and display infrared radiation as visible light, and many are designed to withstand extreme conditions such as high heat, dust, and smoke. These devices need to offer high performance and long battery life amid varying environments. Above all, they need to be reliable, as they are used in applications from examining electrical equipment to dangerous first-responder em...
Video doorbells have become a popular element within many smart home systems, and provide convenience and a sense of security to consumers. As both home systems and video doorbell designs get smarter and more advanced, new features are being incorporated. Innovative video doorbells now include high-quality audio and video streaming, wireless connectivity, multiple-device interface capability, adva...
Glucose meters detect glucose levels in blood samples, which is a critical piece of medical equipment for millions of people, especially those with diabetes. The majority of these monitors are electrochemical, and can be either continuous or discrete (single-test) meters. New glucose meter designs are expected to offer longer battery life and increased reliability, while integrating new features s...
OPERATIONAL AMPLIFIER BASICS, TYPES, AND ADVANTAGES
An operational amplifier (op amp) is an analog circuit block that takes a differential voltage input and produces a single-ended voltage output. Op amps usually have three terminals: two high-impedance inputs and a low-impedance output port. The inverting input is denoted with a minus (-) sign, and the non-inverting input uses a positive (+) sign. Operational amplifiers work to amplify the voltag...
VOLTAGE REGULATOR TYPES AND WORKING PRINCIPLES
A voltage regulator is a circuit that creates and maintains a fixed output voltage, irrespective of changes to the input voltage or load conditions. Voltage regulators (VRs) keep the voltages from a power supply within a range that is compatible with the other electrical components. While voltage regulators are most commonly used for DC/DC power conversion, some can perform AC/AC or AC/DC power c...
POWER OVER ETHERNET (POE) POWER SUPPLY PROCESS ACROSS IEEE 802.3AF/AT/BT PROTOCOL
Although there are various power supply types, this article will focus on Power over Ethernet (PoE) power supplies. In particular, PoE power supplies where the power sourcing equipment (PSE) supplies power to the powered device (PD) terminal equipment through the network cable. Figure 1 shows common PoE power supply equipment, including the PoE switch as well as power-receiving equipment (e.g. wir...
DEVELOPING A BATTERY MANAGEMENT SYSTEM SOLUTION FOR ESS
Reliable and affordable energy sources are required to power the economy and meet daily needs. Without these energy sources, economic growth and development stalls. Dependence on foreign sources for energy can also lead to vulnerability to geopolitical conflicts. With ongoing concerns regarding climate change, ensuring energy security has environmental implications as well, with efforts to increas...
INTEGRATED DRIVERS VS. GATE DRIVERS FOR MOTOR DRIVING
When designing a motor control circuit, it is vital to determine how to deliver the high current required to drive the motor. Designers must choose whether to use monolithic integrated circuits that have internal power devices, or gate driver ICs and discrete external power MOSFETs. This article discusses the advantages and disadvantages of each approach and provides guidance on when to choose eit...
MEZS7-1S-4SPDPOWERBANK REFERENCE DESIGN
The MEZS7-1S-4SPDPowerBank is a solution module for PD applications with the MP2651 and CCG3PA, supporting PD3.0 and BC1.2 protocols. The MP2651 is a buck-boost charger designed for battery packs with 1 cell to 4 cells in series. The device supplies a wide 3V to 21V voltage range at the IN pin in source mode. It is compliant with USB PD specifications. The CCG3PA is a Cypress PD controller that ha...
HOW TO DESIGN A BATTERY MANAGEMENT SYSTEM (BMS)
Battery-powered applications have become commonplace over the last decade, and such devices require a certain level of protection to ensure safe usage. The battery management system (BMS) monitors the battery and possible fault conditions, preventing the battery from situations in which it can degrade, fade in capacity, or even potentially harm the user or surrounding environment. It is also the r...
DETERMINING ACCURATE STATE OF CHARGE WITH THE MPF4279X SERIES (PART II)
When designing a battery management system (BMS), designers can face challenges when obtaining an accurate estimate of the battery’s state-of-charge (SoC), which is the level of a charge a battery has in relation to its capacity. This article is the second of a two-part series discussing SoC estimations. Part I explored the complex application of battery conditions in SoC estimation, as well one ...
DETERMINING ACCURATE STATE OF CHARGE WITH THE MPF4279X SERIES (PART I)
With the dramatic improvement in battery performance, applications are increasingly utilizing battery packs to provide energy. In the battery management system (BMS), designers face the challenge of accurately estimating the battery’s state-of-charge (SoC), which is the level of charge a battery has in relation to its capacity. SoC is commonly represented as a percentage between 0% and 100%. A ba...
PHOTOVOLTAIC CHARGING SOLUTION WITH MP2731
For the 2022 Beijing Winter Olympics, all Olympic venues used green electricity to promote the goal for carbon neutrality. Green electricity mainly comes from solar photovoltaic and wind power generation. Utilizing more renewable photovoltaic energy is an effective approach to reach the greenhouse gas pollution target by 2030. Photovoltaic cells have many subdivisions of applications, including...
MEZS7-1S-4SPDCHARGER REFERENCE DESIGN
The MEZS7-1S-4SPDCharger is a solution module for PD applications with the MP2760 and CCG3PA, supporting PD3.0 and BC1.2 protocols. The MP2760 is a buck-boost charger designed for battery packs with 1 cell to 4 cells in series. The device supplies a wide 3V to 21V voltage range at the IN pin in source mode. This is compliant to the USB PD specifications. The CCG3PA is a Cypress PD controller that ...
ELEVATING HIGH-DENSITY ADAPTER DESIGNS WITH INTEGRATED CAPACITIVE ISOLATION
The demand for fast charging has driven the unprecedented evolution of high-density adapters. In practical adapter designs, there are countless implementations of new switching power devices, topologies, and control schemes. With the introduction of these cutting-edge technologies, the power density of adapter products has significantly increased. 1W/cm3 is becoming the common density for high-de...
BATTERY CHARGER FUNDAMENTALS
Li-ion battery charger ICs are devices that regulate battery charging current and voltage, and are commonly used for portable devices, such as cellphones, laptops, and tablets. Compared to other battery chemistries, Li-ion batteries have one of the highest energy densities, provide a higher voltage per cell, can tolerate higher currents, and do not have to be trickle charged when the battery is fu...
DEVELOPING A MULTI-PORT FAST-CHARGE SOLUTION WITH THE HR1211
The HR1211 is an integrated, multi-mode PFC and current mode LLC controller solution that was designed to meet the power requirements of the fast-charge adapter market. To achieve a simplified peripheral circuit, the HR1211 integrates a high-voltage current source, a safety-certified X-capacitor discharge circuit, and high-voltage drive circuits for PFC and LLC. In addition, a capacitor resistor i...
VERSAL HBM – FULL POWER MANAGEMENT DEVICE (OPTIMIZED FOR EFFICIENCY)
VERSAL HBM – L DEVICE (OPTIMIZED FOR EFFICIENCY)
DESIGNING A BRUSHLESS MOTOR DRIVER CIRCUIT WITH THE MP6540
MPS recently released an integrated, compact gate driver circuit with six power MOSFETs. This article discusses the MP6540 series, including the MP6540A, MP6540H, and the MP6540HA. The MP6540 is a 3-phase, brushless DC (BLDC) motor driver that integrates three half-bridges consisting of six N-channel power MOSFETs. Conventional motor driver architecture combines a motor driver chip and the power ...
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