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KP1465X Series

KP1465X PWM Dimming, Buck Constant Current LED Power Switch The KP1465X series is a highly integrated buck constant current LED power switch. The chip uses a quasi-resonant operating mode and does not require an auxiliary winding for detecting demagnetization. At the same time, the KP1465X also integrates a unique dimming technology that provides high-precision PWM signal dimming. The KP1465X integrates a 500V high-voltage MOSFET and a 650V high-voltage power supply circuit, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology to achieve high-precision constant current output, and the output line voltage and load regulation performance are excellent. The KP1465X integrates complete protection functions to ensure safe and reliable system operation, such as: undervoltage protection (UVLO), cycle-by-cycle current limiting (OCP), overtemperature protection (OTP), output overvoltage protection (OVP), LED open and short circuit protection, etc.


  • Product Description
    • Commodity name: KP1465X Series
    • 封装: SOP-8/DIP-7
    • 品牌: Biyi Microelectronics

    KP1465X PWM Dimming, Buck Constant Current LED Power Switch The KP1465X series is a highly integrated buck constant current LED power switch. The chip uses a quasi-resonant operating mode and does not require an auxiliary winding for detecting demagnetization. At the same time, the KP1465X also integrates a unique dimming technology that provides high-precision PWM signal dimming. The KP1465X integrates a 500V high-voltage MOSFET and a 650V high-voltage power supply circuit, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology to achieve high-precision constant current output, and the output line voltage and load regulation performance are excellent. The KP1465X integrates complete protection functions to ensure safe and reliable system operation, such as: undervoltage protection (UVLO), cycle-by-cycle current limiting (OCP), overtemperature protection (OTP), output overvoltage protection (OVP), LED open and short circuit protection, etc.

     

    Main Features

    • PWM dimming function

    • 1%~100% wide dimming range

    • Flicker-free across the entire dimming range

    • 10mW ultra-low standby power consumption

    • Integrated high-voltage 500V MOSFET

    • Integrated 650V high-voltage self-powered circuit

    • No VDD capacitor design

    • High-efficiency operation in quasi-resonant mode

    • ±4% constant current accuracy

    • Excellent line voltage and load regulation

    • Internal protection functions:

    • Output overvoltage protection (OVP)

    • Cycle-by-cycle current limiting (OCP)

    • Leading edge blanking (LEB)

    • LED open and short circuit protection

    • Overtemperature protection (OTP)

    • Package types SOP-8 and DIP-7

     

    Product Model

    Topology Circuit

    Power Factor

    Operating Mode

    MOS Voltage Resistance (V)

    On-Resistance (Ω)

    LED Open Circuit Protection

    Dimming Method

    Recommended Output Current (mA)

    Vin=176-265Vac Vout=72V

    Package

    KP14651

    Buck

    PF>0.5

    Critical Conduction

    500

    8.5

    External

    PWM to Analog

    <180

    SOP-8

    KP14652

    Buck

    PF>0.5

    Critical Conduction

    500

    5.4

    External

    PWM to Analog

    <200

    SOP-8

    KP14653

    Buck

    PF>0.5

    Critical Conduction

    500

    3.2

    External

    PWM to Analog

    <300

    SOP-8

    KP14652

    Buck

    PF>0.5

    Critical Conduction

    500

    5.4

    External

    PWM to Analog

    <250

    DIP-7

    KP14653

    Buck

    PF>0.5

    Critical Conduction

    500

    3

    External

    PWM to Analog

    <340

    DIP-7

    KP14654

    Buck

    PF>0.5

    Critical Conduction

    500

    1.9

    External

    PWM to Analog

    <420

    DIP-7

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