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?2011 International Rectifier
 
 
Feb 21, 2011
IR1153S
FIXED 22.2kHz FREQUENCY, 礟FC ONE CYCLE CONTROL
IC WITH BROWN-OUT PROTECTION
 
Features 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Description                                                                                                   Package  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IR1153 Application Diagram
 
 
 
      
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
 
 
 
 
 
" PFC IC with IR proprietary One Cycle Control
" Continuous conduction mode boost type PFC
" Fixed 22.2kHz 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
The 糚FC IR1153 power factor correction IC, based on IR proprietary
"One Cycle Control" (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 at a fixed
22.2kHz switching frequency. The IR1153 features include input-line
sensed brown-out protection, dedicated pin for over voltage protection,
cycle by cycle peak current limit, open loop protection, VCC 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. IR1153 is available in SO-8 package.
COM
1
BOP
4
VFB
6
VCC
7
GATE
8
ISNS
3
COMP
2
OVP/EN
5
ACIN1
ACIN2
IR1144
VOUT
RTN
VCC
 
 
-    +
IR1153
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