Monolithic Power Systems has introduced two new LED driver ICs: the MP4000 for non-isolated lighting applications and the MP4020 for isolated applications.
The MP4000 is a high-efficiency step-down converter designed for driving high-brightness light emitting diodes (HBLEDs). It drives an external MOSFET in the floating buck converter structure. The inductor current is regulated with boundary conduction mode which features no reverse recovery loss in the freewheeling diode and soft turn-on for the power MOSFET. This operation mode can achieve very high efficiency and at the same time minimise the inductor value and size.
The LED current can be well regulated by controlling the MOSFET peak current, which is sensed through an external resistor. The low 300 mV feedback voltage reduces power loss and improves efficiency.
The MP4020 is a primary side controlled offline LED lighting controller which can achieve high power factor and accurate LED current for an isolated lighting application in a single-stage converter. The proprietary real current control method can control the LED current accurately from the primary side information. It can simplify the LED lighting system design and increase efficiency by removing the secondary feedback components and the current sense resistor.
The MP4020 integrates power factor correction and operates in boundary conduction mode for reduced power loss. Its low startup current and quiescent current can reduce the power consumption for enhanced efficiency.
Hardware architectural options for artificial intelligence systems NuVision Electronics
Editor's Choice AI & ML
With smart sensors creating data at an ever-increasing rate, it is becoming exponentially more difficult to consume and make sense of the data to extract relevant insight. This is providing the impetus behind the rapidly developing field of artificial intelligence.
Read more...Mouser broadens its LED lineup
Opto-Electronics
Mouser has broadened its LED lineup with diverse solutions designed to support lighting, medical, and smart home applications.
Read more...High-speed edge AI evaluation kit NuVision Electronics
DSP, Micros & Memory
The AMD Versal AI Edge VEK280 evaluation kit is now available. Featuring the Versal AI Edge VE2802 device, this kit is optimised for evaluating and developing compute-intensive ML inference applications.
Read more...High-quality optoelectronics components
Opto-Electronics
LEDs make up the bulk of Lite-On’s product range, and all popular types are manufactured from the ubiquitous round LEDs designed for through-hole mounting to state-of-the-art structures, integrated with programmable control systems.
Read more...Matter 1.2 adds new capabilities NuVision Electronics
Editor's Choice Telecoms, Datacoms, Wireless, IoT
This update introduces new device types and expands the reach of Matter into new markets, while also bringing other improvements that enhance interoperability and user experience.
Read more...NTC thermistors for laser diode temperature measurement Electrocomp
Opto-Electronics
These bondable NTC thermistors can be mounted with Au wire bonding inside the package for highly accurate temperature detection of laser diodes used for optical communication.
Read more...Linux SD-WAN appliance NuVision Electronics
Computer/Embedded Technology
With its powerful quad-core performance and 12 high-speed SERDES lanes, the SoC delivers exceptional processing power for network data management and security.
Read more...Touch screen enables wise data visualisation Rugged Interconnect Technologies
Opto-Electronics
ADLINK offers comprehensive industrial-grade touch monitors and smart panels with in-house value-added customisation.
Read more...Upgraded GUIs on STM32 microcontrollers Altron Arrow
Opto-Electronics
TouchGFX has now been upgraded to version 4.22, which sees many new features to aid developers with their user experience.
Read more...Ultrabright chip LEDs Avnet Abacus
Opto-Electronics
Vishay’s range of high-reliability ultrabright chip LEDs feature a tiny footprint with excellent efficiency, and are available in two sizes, SMD 0603 and 0402.
printer friendly version