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L4981A

Category: IC Chips

Description: POWER FACTOR CORRECTOR

Price range ($)

14 Suppliers

0.65016 3.09600

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Part Number Seller's Name Stock Brand Package/Case Date Code Description Price

L4981A

L4981A has several brands around the world that may have alternate names for L4981A due to regional differences or acquisition. L4981A may also be known as the following names:

    Alternate Text

    All sellers

    11

    Brand new

    11

    Certified preowned

    11

    Official

    11

    Third Party

    11

    Description

    Part Number Product Description Summary Price Buy

    Utsource

    66794

    5.0 out of 5 stars

    1 star 0.1%
    2 star 0%
    3 star 0.2%
    4 star 0.3%
    5 star 99.3%

    Total products: 2400113

    Total sales: 7095432

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:33949

    USED

    STMicroelectronics

    05+

    POWER FACTOR CORRECTOR

    ≥1: US $1.85760 US $1.67184

    ≥5: US $1.23840 US $1.11456

    ≥10: US $1.11456 US $1.00310

    ≥20: US $1.08360 US $0.97524

    ≥50: US $1.05264 US $0.94738

    ≥100: US $1.02168 US $0.91951

    ≥200: US $0.99072 US $0.89165

    ≥500: US $0.97834 US $0.88051

    ≥1000: US $0.95976 US $0.86378

    More: Inquiry

    Shenzhen profit Microelectronics Co., Ltd.

    187

    5.0 out of 5 stars

    5 star 100%

    Total products: 2748

    Total sales: 7039

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:72

    NEW

    STMicroelectronics

    0442+

    POWER FACTOR CORRECTOR

    ≥1: US $0.86688 US $0.78019

    More: Inquiry

    Utsource Original Store

    66794

    5.0 out of 5 stars

    1 star 0.1%
    2 star 0%
    3 star 0.2%
    4 star 0.3%
    5 star 99.3%

    Total products: 2400113

    Total sales: 7095432

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:38090

    NEW

    STMicroelectronics

    99+

    POWER FACTOR CORRECTOR

    ≥1: US $3.09600 US $2.78640

    ≥5: US $2.94120 US $2.64708

    ≥10: US $2.78640 US $2.50776

    ≥20: US $2.70900 US $2.43810

    ≥50: US $2.63160 US $2.36844

    ≥100: US $2.55420 US $2.29878

    ≥200: US $2.47680 US $2.22912

    ≥500: US $2.44584 US $2.20126

    ≥1000: US $2.39940 US $2.15946

    More: Inquiry

    Xing Sheng Electronics Co.,Ltd.

    4009

    5.0 out of 5 stars

    1 star 0.2%
    3 star 0.1%
    4 star 0.7%
    5 star 99%

    Total products: 48001

    Total sales: 80859

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:163

    USED

    STMicroelectronics

    02/09/97+

    POWER FACTOR CORRECTOR

    ≥1: US $1.30032 US $1.17029

    More: Inquiry

    Kokey Electronics Co.,Ltd.

    1913

    5.0 out of 5 stars

    1 star 0.1%
    3 star 0.2%
    4 star 0.4%
    5 star 99.3%

    Total products: 6969

    Total sales: 54811

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:50

    USED

    STMicroelectronics

    2015

    POWER FACTOR CORRECTOR

    ≥1: US $1.51704 US $1.36534

    More: Inquiry

    Yue Hong Fa Electronics Co.,Ltd.

    832

    5.0 out of 5 stars

    1 star 0.2%
    2 star 0.2%
    4 star 0.7%
    5 star 98.8%

    Total products: 3608

    Total sales: 34138

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:180

    USED

    STMicroelectronics

    99+

    POWER FACTOR CORRECTOR

    ≥1: US $0.65016 US $0.58514

    More: Inquiry

    YUESHENG ELECTRONICS CO.,LTD

    45

    5.0 out of 5 stars

    5 star 100%

    Total products: 2818

    Total sales: 1571

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:1537

    USED

    STMicroelectronics

    00+

    POWER FACTOR CORRECTOR

    ≥1: US $0.65016 US $0.58514

    More: Inquiry

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:500

    USED

    STMicroelectronics

    16+

    POWER FACTOR CORRECTOR

    ≥1: US $0.86688 US $0.78019

    More: Inquiry

    JIE RONG Electronics Co.,Ltd

    51

    4.7 out of 5 stars

    1 star 3.9%
    4 star 9.8%
    5 star 86.3%

    Total products: 19406

    Total sales: 37843

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:5

    USED

    STMicroelectronics

    97+

    POWER FACTOR CORRECTOR

    ≥1: US $1.12694 US $1.01425

    More: Inquiry

    ZJ Electronics Co.,Ltd.

    16

    4.8 out of 5 stars

    3 star 6.3%
    4 star 6.3%
    5 star 87.5%

    Total products: 18207

    Total sales: 23482

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:488

    NEW

    STM

    05+

    POWER FACTOR CORRECTOR

    ≥1: US $1.51704 US $1.36534

    More: Inquiry

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:145

    NEW

    STMicroelectronics

    9405/96

    POWER FACTOR CORRECTOR

    ≥1: US $1.51704 US $1.36534

    More: Inquiry

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:53

    NEW

    STM

    09+

    POWER FACTOR CORRECTOR

    ≥1: US $1.51704 US $1.36534

    More: Inquiry

    GUANGZEDIANZI

    1

    5.0 out of 5 stars

    5 star 100%

    Total products: 10028

    Total sales: 1219

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:27

    USED

    STMicroelectronics

    POWER FACTOR CORRECTOR

    ≥1: US $0.86688 US $0.78019

    More: Inquiry

    SONGXING Electronics Co.,Ltd.

    19

    4.7 out of 5 stars

    1 star 5.3%
    4 star 5.3%
    5 star 89.5%

    Total products: 35695

    Total sales: 27075

    Average lead time: 0 Hour

    Delivery times (Express): 0Deliverytimes

    Delivery times (Post office): 0

    L4981A POWER   FACTOR   CORRECTOR
    L4981A

    Stock:148

    NEW

    STMicroelectronics

    99

    POWER FACTOR CORRECTOR

    ≥1: US $1.51704 US $1.42602

    More: Inquiry

    CONTROL BOOST PWM UP TO 0.99P.F.

    LIMITLINE CURRENT DISTORTION TO < 5%

    UNIVERSAL INPUT MAINS

    FEED FORWARD LINE AND LOAD REGULATION

    AVERAGE CURRENT MODE PWM FOR MINIMUM NOISE SENSITIVITY

    HIGH CURRENT BIPOLAR AND DMOS TOTEM POLE OUTPUT

    LOW START-UP CURRENT (0.3mA TYP.)

    UNDER VOLTAGE LOCKOUT WITH HYSTERESIS AND PROGRAMMABLE TURN ON THRESHOLD

    OVERVOLTAGE, OVERCURRENT PROTECTION

    PRECISE 2% ON CHIP REFERENCE EXTERNALLY AVAILABLE

    SOFT START

     

    DESCRIPTION

    The L4981 I.C. provides the necessary features to achieve a very high power factor up to 0.99.

    Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption.

    The L4981 can be easily used in systems with mains voltages between 85V to 265V without any line switch. This new PFC offers the possibility to work at fixed frequency (L4981A) or modulated frequency (L4981B) optimizing the size of the input filter; both the operating frequency modes working with an average current mode PWM controller, maintaining sinusoidal line current without slope compensation.

    Besides power MOSFET gate driver, precise voltage reference (externally available), error amplifier, undervoltage lockout, current sense and the soft start are included. To limit the number of the external components, the device integrates protections as overvoltage and overcurrent. The overcurrent level can be programmed using a simple resistor for L4981A. For a better precision and for L4981B an external divider must be used.


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