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
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