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.
Enhanced breaker status and communication module Schneider Electric South Africa
Opto-Electronics
Schneider Electric has announced the launch of its new Breaker Status and Communication Module (BSCM) Modbus SL/ULP, which delivers enhanced performance, improved connectivity, and simplified integration for power distribution systems.
Read more...Enhance SiC device efficiency using merged-pin Schottky diodes NuVision Electronics
Editor's Choice Power Electronics / Power Management
Silicon carbide (SiC) has advantages over silicon (Si) that make it particularly suitable for Schottky diodes in applications such as fast battery chargers, photovoltaic (PV) battery converters, and traction inverters.
Read more...Redefining entry-level MCUs NuVision Electronics
DSP, Micros & Memory
The company positions the GD32C231 series as a ‘high-performance entry-level’ solution designed to offer more competitive options for multiple applications.
Read more...Heat-resistant LEDs
Opto-Electronics
Würth Elektronik’s new RGB LEDs are characterised by excellent heat resistance with an insensitivity to temperatures from -40 to 100°C making them ideal solutions for reliable, colour-variable lighting in applications at high operating temperatures.
Read more...PhotoMOS relays Future Electronics
Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.
Read more...Mouser now shipping onsemi’s image sensors TRX Electronics
Opto-Electronics
The AR0145CS is a 1/4,3-inch CMOS digital image sensor with a 1280 (H) x 800 (V) active-pixel array that can capture both continuous video and single frames.
Read more...Adaptive optics’ power solution Altron Arrow
Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.
Read more...Ultra-high speed photo detection
Opto-Electronics
TDK Corporation has announced a photo-spintronic conversion element combining optical, electronic, and magnetic elements that can respond at an ultra-high speed of 20 picoseconds.
Read more...High-speed lasers RFiber Solutions
Opto-Electronics
Macom are a high-volume manufacturer of lasers, deploying more than 100 million devices with a reliability of less than 50 FIT and greater than 100 years of wear-out lifetime
Read more...High-performance optical interconnect
Opto-Electronics
STMicroelectronics has unveiled its next generation of proprietary technologies for higher-performing optical interconnect in datacentres and AI clusters.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version