for more information in north america call +1 310 252 7105, in europe call +49 6102 884 311, or visit us at www.irf.com 11349a_fs 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) benefts ? low component count ? off-line operation ? very simple design ? inherent stability ? inherent short circuit protection the irs2980 is the latest addition to irs range of buck controllers complementing the existing irs25401/11 series for non-isolated led driver applications. the irs2980 includes a high voltage regulator which enables the irs2980 to be supplied directly from the input voltage bus and differential high side current sensing enabling the use of a single mosfet and ultra-fast diode as well as maximum frequency limiting. these improvements provide design simplifcation and cost saving while being able to operate up to 450v with adequate thermal relief. a pwm dimming interface is also incorporated making the irs2980 a versatile low cost led driver solution. applications include led bulb replacement, indoor and outdoor signage as well as architectural, entertainment design and decorative lighting. the irs2980 and irs25401/11 operate in continuous conduction mode using hysteretic average current control. the power management leader high-voltage buck control ics for constant led current regulation lighting ledrivir ?
high-voltage buck control ics for constant led current regulation irplled7 demo board part number package voltage load current regulation startup current frequency irs2980s so-8 450v +/-5% <250 a <150 khz irs25401s so-8 200v +/-5% <500 a <500 khz IRS25411S so-8 600v +/-5% <500 a <500 khz 310 320 330 340 350 360 370 380 390 60 70 80 90 100 1 10 120 130 140 150 160 170 180 current (ma) input voltage led current (ma) specifcations forucmf gafmnnefvwgfmafkswgf8cis ffcmucmf gafmnnefwgfmafswgf8lis fdencfnme0ffcmucmficiiermrfgsw,c f2aeeifpn3maiftfwpd fbaef3a,uarermf3acrmf flt,,n-fefwfmafvwwb fqarht1afnme0fyc3.fiencfnmai ledrivir ? irs2980 emi filter line rectifier ic and switches leds ic led current vs input voltage for more information in north america call +1 310 252 7105, in europe call +49 6102 884 311, or visit us at www.irf.com 11349a_fs
|
