EDNE September 2012 - (Page 3)

LEDrivIR LED IR™ High-Voltage Buck Control ICs for Constant LED Current Regulation EMI Filter Line Rectifier IC and Switches LEDs IRPLLED7 Demo Board IC IRS2980 Features • Internal high voltage regulator • Hysteretic current control • High side current sensing • PWM dimming with analog or PWM control input • Free running frequency with maximum limiting (150kHz) IRS2980 Beneﬁts • Low component count • Off-line operation • Very simple design • Inherent stability • Inherent short circuit protection Demo Board Speciﬁcations • Input Voltage 70V to 250V (AC) • Output Voltage 0V to 50V (DC) • Regulated Output Current: 350mA • Power Factor > 0.9 • Low component count • Dimmable 0 to 100% • Non-isolated Buck regulator IRPLLED7 Demo Board LED Current vs Input Voltage 390 380 Current (mA) 370 360 350 340 330 LED Current (mA) LEDrivIR™ IRS2980 320 310 Part Number IRS2980S IRS25401S IRS25411S Package SO-8 SO-8 SO-8 Voltage 450V 200V 600V Gate Drive Current +180 / -260 mA +500 / -700 mA +500 / -700 mA For more information call +49 (0) 6102 884 311 or visit us at www.irf.com 60 70 80 90 100 110 120 130 140 150 160 170 180 Input Voltage Startup Current <250 µA <500 µA <500 µA Frequency <150 kHz <500 kHz <500 kHz THE POWER MANAGEMENT LEADER http://www.irf.com http://www.irf.com http://www.irf.com http://www.irf.com http://www.irf.com http://www.irf.com

Table of Contents for the Digital Edition of EDNE September 2012

Cover
Contents
International Rectifier
Microchip
RS Components
Masthead
Microchip
EDN Comment
Pulse
Analog Devices
Altera
Baker's best
Messe München
Test & Measurement World
Agilent Techno
Digi-key
Bergquist
Advanced power switches boost microhybrid emissions gains
Digi-Key
Image sensors evolve to address Emerging embedded- vision needs
Renesas
Silicon Labs
Digi-Key
Vicor
Power becomes a software issue as smart phones become smarter
IAN
Power : a significant challenge in EDA design
Digi-Key
Mechatronics in Desin
Design Ideas
Product roundup
Tales from the Cube

EDNE September 2012