Transcript (PFC) ICs

PFC™ Power Factor Correction (PFC)
ICs
The IR115x ICs, utilizing IR’s One Cycle Control
(OCC) technology, offer high power factor (PF), low
total harmonic distortion (THD) and excellent DC bus
regulation while enabling drastic reduction in
component count, PCB area and design time
compared to traditional solutions. The ICs are
designed to operate in continuous conduction mode
Boost PFC converters with average current mode
control over 85-264 VAC input line voltage range.
Features
• Low cost, 8-pin PFC IC with high-level of
system protections, minimizes system design
steps
• Continuous conduction mode lowers peak
current and reduces conduction loss
• Average current mode results in better THD
• Dedicated 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”
• Brown-out protection (IR1152/IR1153)
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Advantages
• The new PFC™ ICs offer advanced system-enabling and protective
features including dedicated pin for over-voltage protection, cycle by
cycle peak current limitation, open loop protection, VCC UVLO and
programmable soft-start.
• The user initiated micropower startup/sleep-mode enables compliance
with standby power requirements mandated by regulations such as
Energy Star, Green Power and Blue Angel.
• The IR1155S offers programmable switching frequency between 48
kHz to 200 kHz based on the specific application requirement.
• The IR1152S and IR1153S offer fixed switching frequency of 66 kHz
and 22.2 kHz respectively. These devices are compatible with IR’s
Ultrafast and Warp IGBTs for systems with power ratings higher than
750 Watt and switching frequency up to 100 kHz.
March 2011