Feb 28, 2011 IR1155S PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC Features VCC under voltage lockout PFC IC with IR proprietary One Cycle Control Programmable soft start Continuous conduction mode boost type PFC Micropower startup Programmable switching frequency (48k-2 00kHz) User initiated micropower Sleep Mode Average current mode control OVP/EN pin internal filtering for higher noise immunity Output overvoltage protection 1.5A peak g ate drive Open loop protection Latch immunity and ESD protection Cycle by cycle peak current limit Description Package The PFC IR1155 power factor correction IC, based on IR proprietaryOne Cycle Contro (OCC) technique, provides for high PF, low THD and excellent DC Bus regulation while enabling drastic reduction in component count, PCB area and design time as compared to traditional solutions. The IC is designed to operate in continuous conduction mode Boost PFC converters with average current mode control over 85-264VAC input line voltage range. Switching frequency can be programmed to anywhere between 48kHz to 200kHz based on the specific application requirement. In addition, IR1155 offers several advanced system-enabling and protective features such as dedicated pin for over voltage protect ion, cycle by cycle peak current limitation, open loop protection, V UVLO, soft-start and CC micropower startup/sleep-mode with IC current consumption less than 200A. The sleep mode, invoked by pulling the OVP/EN pin low, enables compliance with standby power requirements mandated by regulat ions such as Energy Star, Green Power, Blue Angel etc. IR1155 Application Diagram AC LINE VOUT -+ AC NEUTRAL 1 8 COM GATE VCC 2 7 FREQ VCC 3 6 ISNS VFB 4 5 OVP COMP IR1155S RTN www.irf.com 2011 International Rectifier IR1155S Qualification Information Industrial Comments: This family of ICs has passed JEDECs Industrial Qualification Level qualification. IRs Consumer qualification level is granted by extension of the higher Industrial level. MSL2 260C Moisture Sensitivity Level (per IPC/JEDEC J-STD-020) Class A Machine Model (per JEDEC standard JESD22-A115) ESD Class 1B (passes 500V) Human Body Model (per EIA/JEDEC standard EIA/JESD22-A114) Class I, Level A IC Latch-Up Test (per JESD78) RoHS Compliant Yes Absolute Maximum Ratings Parameter Symbol Min. Max. Units Remarks VCC Voltage V -0.3 20 V CC FREQ Voltage V -0.3 6.5 V FREQ ISNS Voltage V -10 0.3 V ISNS VFB, OVP Voltage V , V -0.3 6.5 V FB OVP COMP Voltage V -0.3 6.5 V COMP GATE Voltage V -0.3 18 V GATE ISNS Current I -2 2 mA ISNS Junction Temperature T -40 150 C J Storage Temperature T -55 150 C S Thermal Resistance R 128 C/W JA Junction to Ambient Package Power Dissipation P 976 mW T = 25C D AMB Recommended Operating Conditions Recommended operating conditions for reliable operation with margin Parameter Symbol Min. Typ. Max. Units Remarks Supply Voltage V 12 19 V CC Junction Temperature T -25 125 C J Switching Frequency F 48 200 kHz SW 2011 International Rectifier www.irf.com 2