Our website uses cookies to improve your user experience. If you continue browsing, we assume that you consent to our use of cookies. More information can be found in our Privacy & Cookies Policy

X
Skip to content
  • The Student Engineer
  • JOBS
  • Advanced Manufacturing
  • Awards
  • Conference
  • Latest Issue
  • Newsletter Signup
The Engineer
  • News
  • In-depth
  • Opinion
  • Sectors
  • Careers
  • Supplier Network
Search Login / Register Primary Menu
Close
or Register

Supplier Network +Add your company

Suppliers A-Z
Back to previous
DC/DC converters

Linear Technology offers LT3795 DC/DC converter for driving high-brightness LEDS

Contact Supplier

By Linear Technology now part of Analog Devices on 27th September 201315th December 2015

Product Details Supplier Info More products
Download document:

LT3795 data sheet - .PDF file.

Linear Technology has announced the the LT3795: a 110V, high-side current-sense DC/DC converter designed to regulate a current or voltage to a constant value, that is suitable for driving high-brightness (HB) LEDs.

Its 4.5V to 110V input voltage range makes it appropriate for a wide variety of applications, including automotive, industrial and architectural lighting. The LT3795 uses an external low-side N-channel MOSFET and can drive up to 90V of white LEDs from a nominal 12V input, delivering in excess of 50W.

Spread spectrum frequency modulation reduces EMI emissions, while an internal PMOS switch driver delivers robust short-circuit protection in boost and buck-boost topologies. The LT3795 incorporates a high-side current sense, enabling it to be used in boost, buck, buck-boost or SEPIC topologies.

Additionally it offers current both input and output current limiting and monitoring for added reliability and design flexibility. The LT3795 can deliver efficiencies of more than 94 per cent in boost mode, minimising the need for external heat sinking.

The LT3795 has fixed-frequency, current-mode architecture that offers stable operation over a wide range of supply and output voltages, while robust open- and short-circuit protection maximise overall system reliability, and C/10 detection optimises both battery and SuperCap charging designs.

Key specifications

  • 3000:1 True Color PWM dimming
  • Wide input voltage range: 4.5V to 110V
  • Input and output current reporting
  • PMOS switch driver for PWM and output disconnect
  • Internal spread spectrum frequency modulation
  • ± 2per cent constant voltage regulation
  • ± 3 per cent constant current regulation: 0V ≤ VOUT ≤ 110V
  • Programmable input current limit
  • CTRL inputs linearly adjust LED current
  • Adjustable frequency: 100kHz to 1MHz
  • Programmable open-LED protection with OPENLED flag
  • Short-circuit protection and SHORTLED flag
  • Programmable undervoltage lockout with hysteresis
  • Soft-start with programmable fault restart timer
  • C/10 detection for battery charging
  • Available in 28-lead TSSOP package
External link:

More information

Linear Technology now part of Analog Devices

Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges.

Contact Supplier Visit our website 01628 477066

About Analog Devices
Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure, power, connect and interpret. Visit http://www.analog.com

 

 

View full profile

Electrical and electronic components

Digital power system manager enables conversion efficiency monitoring

20th April 2018 3:21 pm 20th April 2018 3:21 pm
Electrical and electronic components

Analog Devices’ tiny µModule boost regulator for low voltage optical systems

12th April 2018 2:51 pm 12th April 2018 2:56 pm
Measurement, quality control and test

Analog Devices showcases enabling technology for Industry 4.0 at Hannover Fair

4th April 2018 3:31 pm 12th April 2018 4:14 pm
Electrical and electronic components

Dual 15A or single 30A µModule regulator is 96% peak efficient 

9th March 2018 4:02 pm 9th March 2018 4:02 pm
Boards and backplanes Electrical and electronic components Interconnection

Isolated gate driver board for Microsemi SiC power module improves time to market

8th March 2018 3:23 pm 8th March 2018 3:32 pm
DC/DC converters Electrical and electronic components Power supplies

150V dual synchronous step-down DC/DC controller with 16µA IQ

5th March 2018 4:03 pm 5th March 2018 4:03 pm
View all

Explore

  • Supplier Network
  • JOBS
  • SECTORS
    • AEROSPACE
    • AUTOMOTIVE
    • CIVIL AND STRUCTURAL
    • DEFENCE AND SECURITY
    • ELECTRONICS AND COMMUNICATIONS
    • ADVANCED MANUFACTURING
    • MEDICAL AND HEALTHCARE
    • RAIL AND MARINE
    • ENERGY AND ENVIRONMENT
      • NUCLEAR
      • COAL, OIL AND GAS
      • ENERGY AND ENVIRONMENT
      • RENEWABLES
  • SKILLS AND CAREERS
  • POLICY & BUSINESS
  • THE STUDENT ENGINEER
  • ARCHIVE
  • SALARY CALCULATOR
  • SALARY SURVEY 2017
  • C2I 2017
  • THE ENGINEER 160
  • VIDEOS
  • WEBINARS
  • BACK ISSUES
  • 160 SPECIAL
  • LATEST ISSUE
  • Advertising – Display and Supplier Network
  • EVENTS
  • NEWSLETTER SIGNUP
  • Twitter
  • Contact us
  • T&Cs
  • Privacy
  • Magazine subscription
  • Digital edition

© 2018. All rights reserved.

built by interconnect/it

Centaur Communications Ltd (a member of the Centaur Media plc group)

Wells Point, 79 Wells Street, London W1T 3QN. Registered in England No: 1595235