IR1150

Manufacturer Part NumberIR1150
ManufacturerInternational Rectifier Corp.
IR1150 datasheet
 
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Features
PFC with IR proprietary “One Cycle Control”
Continuous conduction mode (CCM) boost type PFC
No line voltage sense required
Programmable switching frequency (50kHz-200kHz)
Programmable output overvoltage protection
Brownout and output undervoltage protection
Cycle-by-cycle peak current limit
Soft start
User initiated micropower “Sleep Mode”
Description
The PFC IR1150 is a power factor correction (PFC) control IC designed to operate in
continuous conduction mode (CCM) over a wide range input line voltages. The IR1150
is based on IR's proprietary "One Cycle Control" (OCC) technique providing a cost
effective solution for PFC.
The proprietary control method allows major reductions in component count, PCB
area and design time while delivering the same high system performance as traditional
solutions.
The IC is fully protected and eliminates the often noise sensitive line voltage sensing
requirements of existing solutions.
The IR1150 features include programmable switching frequency, programmable
dedicated over voltage protection, soft start, cycle-by-cycle peak current limit,
brownout, open loop, UVLO and micropower startup current.
In addition, for low standby power requirements (Energy Star, 1W Standby, Blue
Angel, etc.), the IC can be driven into sleep mode with total current consumption
below 200µA, by pulling the OVP pin below 0.62V.
IR1150 Application Diagram
BRIDGE
AC LI NE
AC NEUTRAL
www.irf.com
Data Sheet No. PD60230 revC
PFC ONE CYCLE CONTROL PFC IC
Open loop protection
Maximum duty cycle limit of 98%
User programmable fixed frequency operation
Min. off time of 150-350ns over freq range
V
under voltage lockout
CC
Internally clamped 13V gate drive
Fast 1.5A peak gate drive
Micropower startup (<200 A)
Latch immunity and ESD protection
Parts also available Lead-Free
V c c
IR1150
1
8
COM
GATE
2
7
FREQ
VCC
3
6
ISNS
VFB
4
5
OVP
COMP
+
IR1150(S)(PbF)
IR1150I(S)(PbF)
Packages
8-Lead SOIC
8-Lead PDIP
V OUT
+
RTN
1

IR1150 Summary of contents