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?2011 International Rectifier
 
 
Feb 21, 2011
IR1152S
FIXED 66kHz FREQUENCY, 礟FC ONE CYCLE CONTROL PFC
IC WITH BROWN-OUT PROTECTION
Features
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Description Package
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IR1152 Application Diagram 
VOUT
RTN
ACIN1
ACIN2
COM
1
BOP
4
VFB
6
VCC
7
GATE
8
ISNS
3
COMP
2
OVP/EN
5
IR1152
-
+
VCC
+
 
 
 
      
 
 
 
 
 
" PFC IC with IR proprietary One Cycle Control
" Continuous conduction mode boost type PFC
" Fixed 66kHz switching frequency
" Average current mode control
" Input line sensed brownout protection
" 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
" 750mA peak gate drive
" Latch immunity and ESD protection
礟FC IR1152 power factor correction IC, based on IR proprietary "One
Cycle Control" (OCC) technique, provides for high PF 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 85-264VAC universal input, continuous
conduction mode Boost PFC at fixed 66kHz switching frequency.
IR1152   features   include   input-line   sensed   brown-out   protection,
overvoltage protection, cycle by cycle peak current limit, open loop
protection, V
CC
 UVLO, soft-start and micropower startup current of less
than 75礎. In addition, for standby power requirements, the IC can be
driven into a micropower sleep mode by pulling the OVP/EN pin low
where the current consumption is less than 75uA. The IR1152 is
available in SO-8 packages.
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