Manufacturer Part NumberIR1150IS
ManufacturerInternational Rectifier
IR1150IS datasheet

Specifications of IR1150IS

Start-up Supply Current175uASwitching Freq50 to 200KHz
Operating Supply Voltage (min)15VOperating Supply Voltage (typ)18V
Operating Supply Voltage (max)20VOperating Temp Range-25C to 85C
Operating Temperature ClassificationCommercialPackage TypeSOIC
Pin Count8MountingSurface Mount
Lead Free Status / RoHS StatusNot Compliant  
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• 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”
The µPFC 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.
Data Sheet No. PD60230 revD
• Open loop protection
• Maximum duty cycle limit of 98%
• User programmable fixed frequency operation
• Min. off time of 150-350ns over freq range
• VCC under voltage lockout
• Internally clamped 13V gate drive
• Fast 1.5A peak gate drive
• Micropower startup (<200 µA)
• Latch immunity and ESD protection
• Parts also available Lead-Free
8-Lead SOIC
8-Lead PDIP

IR1150IS Summary of contents

  • Page 1

    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 • ...

  • Page 2

    Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltages are absolute voltages referenced to COM. Thermal resistance and power dissipation are measured under board mounted and still air conditions. Parameters ...

  • Page 3

    Electrical Characteristics cont. The electrical characteristics involve the spread of values guaranteed within the specified supply voltage and junction temperature range T from – 25°C to 125°C. Typical values represent the median values, which are related to 25°C. If not ...

  • Page 4

    Internal Voltage Reference Section Parameters Symbols Reference voltage V REF Line regulation R REG Temp stability T STAB Total variation ∆V TOT Voltage Error Amplifier Section Parameters Symbols Transconductance g m Source/sink current I OVEA Soft start delay time t ...

  • Page 5

    Gate Driver Section Parameters Symbols Gate low voltage V GLO Gate high voltage V GTH Gate high voltage V GTH Rise time tr Fall time tf Out peak current I OPK Gate voltage @ fault VG fault Note 1: Guaranteed ...

  • Page 6

    Block Diagram Lead Assignments & Definitions Lead Assignment IR1150(S)/IR1150I(S)(PbF) 0.62V Pin# Symbol Description 1 COM Ground 2 FREQ Frequency Set 3 I Current Sense SNS 4 OVP/EN Overvoltage Fault Detect / Enable COMP Voltage Loop Compensation ...

  • Page 7

    General Description The µPFC IR1150 is intended for boost converters for power factor correction operating at a fixed frequency in continuous conduction mode. The IC operates with two loops; an inner current loop and an outer voltage loop. The inner ...

  • Page 8

    Detailed Pin Description COM: Ground This is the ground potential pin of the integrated control circuit. All internal devices are referenced to this point Output Voltage Feedback FB The output voltage of the boost converter is sensed via ...

  • Page 9

    Operating States UVLO Mode The IC remains in the UVLO condition until the voltage on the V pin exceeds the VCC turn on threshold voltage, CC VCC ON. During the time the IC remains in the UVLO state, the gate ...

  • Page 10

    V <0.62V OVP IR1150(S)/IR1150I(S)(PbF) V <0.62V OVP V >0.62V OVP V <0.62V OVP V <0.62V OVP V <0.62V OVP V <0.62V OVP V <99%V OVP REF 10 ...

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    IR1150(S)/IR1150I(S)(PbF) 11 ...

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    IR1150(S)/IR1150I(S)(PbF) 12 ...

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    Tape & Reel Information (SOIC 8-Lead only) Dimensions are shown in millimeters (inches) TERMINAL NUMBER 1 8.1 ( .318 ) 7.9 ( .312 ) NOTES: 1. OUTLINE CONFORMS TO EIA-481 & EIA-541. 2. CONTROLLING DIMENSION : MILLIMETER. 330.00 (12.992) MAX. ...

  • Page 16

    ... PART MARKING INFORMATION Basic Part 8-Lead SOIC IR1150STR order IR1150STR 8-Lead SOIC IR1150ISTR order IR1150ISTR 8-Lead SOIC IR1150ISTR order IR1150ISTRPbF WORLD HEADQUARTERS: 233 Kansas Street, El Segundo, California 90245 Tel: (310) 252-7105 IR1150(S)/IR1150I(S)(PbF) ORDER INFORMATION Lead-free Part 8-Lead SOIC IR1150S order IR1150STRPbF ...