Taipei, Tuesday, July 26, 2016 06:53 (GMT+8)
thunderstorms
Taipei
31°C
Linear announces synchronous buck LED driver controller
Michael McManus, DIGITIMES, Taipei [Monday 29 October 2012]

Linear Technology recently announced the LT3763, a synchronous buck LED driver controller that delivers over 300W of LED power. Its 6V to 60V input voltage range satisfies a wide variety of applications, including automotive, industrial and architectural lighting. Similarly, its output voltage can be set from 0V to 55V, enabling it to drive a wide range of LEDs in a single string.

The LT3763 offers both input and output current monitors and limiting, which accurately control both input and output current. Similarly, the LT3763 also offers accurate output voltage regulation as well as input regulation, useful for high impedance sources such as solar panels. Its constant current and constant voltage regulation makes it ideal for applications ranging from driving high brightness LEDs to battery and supercap charging. Additionally, True Color PWM dimming capability offers dimming ranges as wide as 3,000:1 for LED applications. The LT3763 is unique design utilizes four control loops to monitor input current, LED /output current, output and input voltage to deliver optimum performance and reliability.

The LT3763 uses two external switching MOSFETs and can deliver from 5W to over 300W of continuous LED power with efficiencies up to 96%. LED current accuracy of +6% ensures constant lighting while + 1.5% output voltage accuracy offers several LED protection features and also enables the converter to operate as a constant voltage/constant current source for charging applications. The LT3763 can utilize either analog or PWM dimming as required by the application. Furthermore, its switching frequency can be programmed between 200kHz and 1MHz or synchronized to an external clock. Additional features include open/short protection, C/10 detection, input and output current monitors, and integrated fault protection.

The LT3763EFE is available in a 28-lead thermally enhanced TSSOP package, priced starting at US$4.45 each, in 1,000-piece quantities. An extended temperature version, or I grade, the LT3763IFE, is also available, priced starting at US$4.90 each in 1,000-piece quantities.

Realtime news
  • Digitimes Research: Taiwan sees decreased smartphone ODM/OEM shipments in 2Q16

    Mobile + telecom | 10h 24min ago

  • Panel cutting service provider Nanoplus to debut on Taiwan emerging stock market, says paper

    Displays - Newswatch | 10h 24min ago

  • Pepper enters into Taiwan service market

    Before Going to Press | 10h 13min ago

  • Wi-Fi Alliance to launch certification for compatibility with WiGig MMW technology

    Before Going to Press | 10h 19min ago

  • Notebook players less aggressive about using USB Type C

    Before Going to Press | 10h 19min ago

  • Posiflex Technology nets NT$4.25 per share for 1H16

    Before Going to Press | 10h 42min ago

  • Shunfeng International Clean Energy loses CNY246 million in 1H16 due to inability to get PV power on grid

    Before Going to Press | 10h 43min ago

  • Taiwan market: Samsung Electronics to launch smartphone/table hybrid Galaxy Tab J

    Before Going to Press | 10h 43min ago

  • Chip orders for notebooks from Huawei and Xiaomi falling, say sources

    Before Going to Press | 10h 44min ago

  • 2Q16 global smart watch shipments down 32% on year, says IDC

    Before Going to Press | 10h 44min ago

  • Panel cutting service provider Nanoplus to debut on Taiwan emerging stock market in August

    Before Going to Press | 10h 45min ago

  • Holtek 2Q16 profits rise 20% sequentially

    Before Going to Press | 10h 45min ago

  • Win Semi looks to up to 5% revenue growth in 3Q16

    Before Going to Press | 10h 45min ago

  • Component makers to see weak orders for tablets and wearables

    Before Going to Press | 10h 46min ago

  • Raydium reports NT$2.69 EPS for 1H16

    Before Going to Press | 10h 47min ago

Pause
 | 
View more
Taiwan server shipment forecast and industry analysis, 2016
Wireless broadband developments in Southeast Asia markets
The transition to 4k TV - UHD TV market forecast, 2014-2017
  • Wireless broadband developments in Southeast Asia markets

    As of 2013, the 10 ASEAN nations had a total of over 700 million mobile subscriptions, with the CAGR from 2003-2013 reaching 24%. This Digitimes Research Special Report analyzes the various mobile broadband markets in ASEAN and looks at the respective trends in 4G LTE development for those markets.

  • 2015 global tablet demand forecast

    This Digitimes Research Special Report provides a 2015 forecast for the global tablet market and analyzes the strategies of key market players such as Google, Apple, Intel, and Microsoft.

  • 2015 China smartphone panel trend forecast

    This Digitimes Research Special Report analyzes the strategies of key China-based major panel makers BOE, Tianma and IVO for attacking the different market segments through technology and pricing, and their relationship to local vendors Huawei, Lenovo, ZTE, Xiaomi and Coolpad.