LED driver integrated circuits

  • 01-Nov-2011 07:51 EDT
A8502-A8514 text logo 300rgb.jpg

Allegro MicroSystems’ A8502 and A8514 are multi-output LED drivers for liquid crystal display backlighting. The devices integrate a current-mode boost converter with internal power switch and multiple current sinks. The LED sinks can be paralleled together to achieve even higher LED currents. The A8502 and A8514 can operate from a single power supply from 5 V to 40 V, which allows the part to withstand a load dump condition encountered in automotive systems. The devices, coupled with the external PMOS (positive metal-oxide semiconductor) disconnect switch, provide protection against output short and over voltage, open or shorted diode, open or shorted VLED pin, and over temperature.

Share
HTML for Linking to Page
Page URL
Grade
Rate It
0.00 Avg. Rating

Read More Articles On

2017-01-11
An ultralight door architecture nets a 42.5% weight savings compared to a current production door, and that's enough to put this lightweight concept, developed via collaboration, in an enviable position.
2017-01-03
Development of advanced automotive technologies is increasingly being driven by suppliers, rather than OEMs. And megadeals worth at least $500 million that are behind a growing number of next-gen technologies may reach the highest level since before the Great Recession. That’s the view from Las Vegas, as the 2017 CES (formerly the Consumer Electronics Show) opens to over 160,000 attendees.
2017-01-11
The driver's experience of being in a vehicle, but not driving, means opportunities for working or relaxing, as envisioned in a vehicle cabin concept from the world's largest supplier of automotive interiors.
2017-02-13
NBD Nanotechnologies features a new coating solution that renders fingerprints invisible on metal and glass surfaces.

Related Items

Technical Paper / Journal Article
2010-10-25
Training / Education
2018-05-04
Training / Education
2018-03-12
Training / Education
2007-03-01