IR1155S

Overview

Adjustable Frequency One Cycle Control PFC IC

Benefits

• PFC IC with IR proprietary "One Cycle Control"
• Continuous conduction mode boost type PFC
• Programmable switching frequency (50k-200kHz)
• Average current mode control
• Output overvoltage protection
• Open loop protection
• Cycle by cycle peak current limit
• VCC under voltage lockout
• Programmable soft start
• Micropower startup
• User initiated micropower "Sleep Mode"
• OVP/EN pin internal filtering for higher noise immunity
• 1.5A peak gate drive
• Latch immunity and ESD protection

Potential Applications

• PFC

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