Skip to main content

the functions necessary to implement a supercapacitor based LED flash driver solution

Increased resolution in camera phones and standalone digital cameras requires a high intensity LED flash current beyond the capabilities of standard lithium-ion batteries. The XRP6840 alleviates such peak current requirements by constantly sourcing a low controlled current from the system's battery to charge a supercapacitor which in turn provides the power for peak load functions. Charging and discharging parameters of the supercapacitor are completely managed by the XRP6840 and fully programmable via an industry standard I2C interface. The XRP6840 supports high peak current functions in battery operated portable systems while significantly increasing battery life.

The XRP6840 combines and manages in a single device all the functions necessary to implement a supercapacitor based LED flash driver solution. Supporting programmable current in torch and flash modes, the device comes in both two and three channel versions for increased design flexibility and supports up to 600mA of constant charging current. Built around tri-mode charge pump architecture and operating at 2.4MHz, the XRP6840 provides inrush current control and device protection circuitry while a standard I2C interface provides a seamless integration into any system.

In doing so, Rutronik extends its product range of visible and invisible LEDs. Brtled products combine first-class quality with an attractive price-performance ratio. The product range covers standard LEDs, high power LEDs and ultra high power LEDs as well as standard and customised led high bay light, optocouplers, photodiodes and phototransistors up to infrared transmitters, receivers and receiver modules. Together, Rutronik and Brtled focus in particular on white goods markets such as components and displays for cooker control units with a temperature performance of up to 125°C, general and interior lighting and the consumer, communications and computing industries.

Comments

Post a Comment

Popular posts from this blog

while all of hit new record quarterly highs

As a result, to increase greenhouse yields and decrease producers' energy costs, they will team up with Rutgers University, the University of Arizona, Michigan State University, and Orbital Technologies Corp. on the four-year project to improve and evaluate LED lighting for greenhouse use, according to Cary Mitchell, a professor of horticulture and project director for the grant. Total sales from January through September of 2010 hit NT$92.88 billion, up 35% YoY. Meanwhile, operating profit and net profit reached NT$5.67 billion and NT$6.8 billion respectively, with accumulated EPS of NT$3.05 increasing a remarkable 50% YoY. In 3Q10, The Company’s gross margin and operating margin reached 13.9% and 6.7%, up 0.9% and 0.4% QoQ, respectively. Lite-On’s net cash position held steady at NT$11.9 billion, after its recent cash dividend distribution of NT$5 billion. Non-operating items posted a net income of NT$508 million in3Q, with Perlos’ Q3 sales reaching €138 million, up 12% YoY. Perl
Post a Comment
Read more

although some of the monster screens had relatively narrow viewing angles

Spark new tunnel light series includes 50w, 75w, 100w, 125w, 150w, 175w, 200w, which could meet different project requirements. From the exhibition we know Spark new LED tunnel light will be more and more popular, and illluminate more and more tunnels all around the world. Consumer Reports didn't render a verdict after just a quick look, but noted that Sharp "has definitely taken the lead in larger TV screen sizes." It cited the 60-, 70- and 80-inch sets from the past, saying they had typically done well in TV ratings, although some of the monster screens had relatively narrow viewing angles. Consumer Reports pointed out a question that "not everyone has the room -- or room in the budget -- for a 90-inch set." So, when rolling out the world's biggest TV (in its class, anyway), why bother with subtlety and understatement, right?Sharp Electronics of America President John Herrington said it "offers size, picture quality and smart functionality unlike anyt
Post a Comment
Read more

you to experience the latest developments in LED lighting technologies

In early 2012, the photometric testing laboratory of Edison Opto became the first LM 80 corporate testing laboratory to be certified by UL, and in September of the same year, the photometric testing laboratory was certified by UL as a product safety testing laboratory. The certifications in product safety and performance will enable Edison Opto to reduce the time spent on R&D and dive into the international market. Additionally, Edison Opto will be able to expand services globally to the various fields of lighting applications. Edison Opto has the advantage of rapid validation of the company’s internal testing laboratory, which allows Edison Opto to maintain its leading position in the global lighting market. Edison Opto will be exhibiting at INTERLIGHT MOSCOW 2012 (from 06 Nov. to 09 Nov., 2012, in IEC Expocentre, Booth F.A109) and Electronica 2012 (from 13 Nov. to 16 Nov., 2012, in Messe München, Hall A5, Booth A5.301). Edison Opto invites you to experience the latest development
Post a Comment
Read more