IR11452STRPBF International Rectifier, IR11452STRPBF Datasheet

IR11452STRPBF

Manufacturer Part Number

IR11452STRPBF

Description

Power Factor Correction ICs 9999V 999A SOIC

Manufacturer

International Rectifier

Datasheet

1.IR11452STRPBF.pdf (1 pages)

Specifications of IR11452STRPBF

Rohs

yes

Switching Frequency

66 kHz

Mounting Style

SMD/SMT

Package / Case

SOIC-8

Factory Pack Quantity

2500

Current page: 1 of 1
Download datasheet (19Kb)

www.irf.com

Features

Description

IR1145 Application Diagram

• 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

IR1145 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.

IR1145 features include input-line sensed brown-out protection,

overvoltage protection, cycle by cycle peak current limit, open loop

protection, V

than 150µA. 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 150uA. The IR1145 is

available in SO-8 packages.

ACIN2

ACIN1

UVLO, soft-start and micropower startup current of less

FIXED 66kHz FREQUENCY, µPFC ONE CYCLE CONTROL PFC

PRELIMINARY

COM

COMP

ISNS

BOP

IR1145

OVP/EN

• VCC under voltage lockout

• Programmable soft start

• Micropower startup

• User initiated micropower “Sleep Mode”

• 750mA peak gate drive

• Latch immunity and ESD protection

GATE

VCC

VFB

VCC

IC WITH BROWN-OUT PROTECTION

IR1145SPBF

Package

Nov 3, 2010

VOUT

RTN

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