Allegro MicroSystems A8517

  • 24-Sep-2013 08:07 EDT
A8517 text logo 300rgb.jpg

Allegro's A8517

Allegro MicroSystems, LLC’s new A8517 is a programmable multi-output LED (light-emitting diode) driver. The A8517 has a current-mode boost converter with internal power switch and 10 I2C programmable current sinks, and it can also provide 5000:1 contrast ratio PWM (pulse-width modulation) dimming at 200 Hz. It operates from 4.5 to 36 V and can withstand up to 40 V load-dump conditions. The I2C allows for LED currents to be set individually, up to 60 mA per LED channel. The PWM dimming duty cycle is also independently controlled, and each channel can be enabled/disabled independently. This product protects against output short and overvoltage, open or shorted diode, open or shorted LED pin, shorted boost switch or inductor, and IC over-temperature. The IC can drive an external P-FET (P-channel field-effect transistor) as input disconnect switch that is triggered by an integrated current sense. The A8517KLPTR-T is available in a 28-pin eTSSOP package.

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

Read More Articles On

2016-09-06
Model ASUH miniature hybrid high-integrity pressure transducer from KA Sensors is designed for use in rugged environments from -65 to +300ºF (-54 to +149ºC) and vibration levels of more than 20 g.
2016-09-01
Time of flight (ToF) cameras are ready to let drivers control some of the many options of today’s infotainment systems with a mere wave of their hand. ToF-based systems can also monitor drivers to see if they’re drowsy or not watching roadways.
2016-09-20
While OEMs wait for NHTSA's V2X mandate they are discussing whether broad usage can be achieved without regulations.
2016-11-13
Lengthy automotive development and production cycles have long prevented automakers and startups from working together. While that’s changed a bit, many young companies still find it difficult to work with OEMs.

Related Items

Book
2013-12-16
Training / Education
2007-03-01
Book
2005-12-08