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样片和购买
解决方案
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  • The L4984D is a current-mode PFC controller operating with line-modulated fixed-off-time (LM-FOT) control. A proprietary LM-FOT modulator allows fixed-frequency operation for boost PFC converters as long as they are operated in CCM (continuous conduction mode).

    The chip comes in a 10-pin SO package and offers a low-cost solution for CCM-operated boost PFC pre-regulators in EN61000-3-2 and JEIDA-MITI compliant applications, in a power range that spans from few hundred W to 1 KW and above.
    The highly linear multiplier includes a special circuit, able to reduce the crossover distortion of the AC input current, that allows wide-range-mains operation with a reasonably low THD, even over a large load range.
    The output voltage is controlled by means of a voltage-mode error amplifier and an accurate (1% at Tj = 25 °C) internal voltage reference. Loop stability is optimized by the voltage feedforward function (1/V2correction), which in this IC uses a proprietary technique that also significantly improves line transient response in the case of mains drops and surges (“bi-directional”).
    The device features low consumption and includes a disable function suitable for IC remote on/off. These features allow use in applications which also comply with the latest energy saving requirements (Blue Angel, ENERGY STAR, Energy 2000, etc.).
    In addition to overvoltage protection able to keep the output voltage under control during transient conditions, the IC is also provided with protection against feedback loop failures or erroneous settings. Other onboard protection functions allow that brownout conditions and boost inductor saturation can be safely handled. Soft-start limits peak current and extends off-time to prevent flux runaway in the initial cycles.
    The totem pole output stage, capable of 600 mA source and 800 mA sink current, is suitable for big MOSFETs or IGBT drive.

    主要特性

    • Line-modulated fixed-off-time (LM-FOT) control of CCM-operated PFC pre-regulators
    • Proprietary LM-FOT modulator for nearly fixed-frequency operation
    • Proprietary multiplier design for minimum THD of AC input current
    • Fast “bi-directional” input voltage feedforward (1/V2correction)
    • Accurate adjustable output overvoltage protection
    • Protection against feedback loop failure (latched shutdown)
    • Inductor saturation protection
    • AC brownout detection
    • Digital leading-edge blanking on current sense
    • Soft-start
    • 1% (at Tj = 25 °C) internal reference voltage
    • - 600 / + 800 mA totem pole gate driver with active pull-down during UVLO and voltage clamp
    • SSOP10 package

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相关应用

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电源和变换器

评估工具

    • 产品型号

      基于L4984D的350 W CCM PFC预调节器演示板

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS9596
      CCM PFC controller
      1.0
      4.99 MB
      PDF
      DS9596

      CCM PFC controller

    • 描述 版本 文档大小 操作
      AN4149
      Designing a CCM PFC pre-regulator based on the L4984D
      2.0
      2.7 MB
      PDF
      AN4163
      EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D
      2.0
      3.77 MB
      PDF
      AN4149

      Designing a CCM PFC pre-regulator based on the L4984D

      AN4163

      EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D

    • 描述 版本 文档大小 操作
      AN4163
      EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D
      2.0
      3.77 MB
      PDF
      AN4163

      EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D

Presentations & Training Material

    • 描述 版本 文档大小 操作
      EuP Lot 6 Tier2 Ecodesign requirements for Standby
      2.2 MB
      PDF
      L4984D CCM PFC Controller 1.0
      322.33 KB
      PDF
      Power Factor Corrector controllers portfolio
      1.22 MB
      PDF

      EuP Lot 6 Tier2 Ecodesign requirements for Standby

      L4984D CCM PFC Controller

      Power Factor Corrector controllers portfolio

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      电源管理指南 06.2019
      5.89 MB
      PDF

      电源管理指南

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L4984D
批量生产
SSOP 10 工业 Ecopack2
L4984DTR
批量生产
SSOP 10 工业 Ecopack2

L4984D

Package:

SSOP 10

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4984DTR

Package:

SSOP 10

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

eDesignSuite

转换器

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V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

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A This option is required and must be a number.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L4984DTR Available at 4 distributors

...的经销商可用性L4984DTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2938 1 马上订购
ARROW EUROPE 5499 0 马上订购
MOUSER WORLDWIDE 5162 1 马上订购
Farnell Element14 EUROPE 2236 1 马上订购

代理商库存报告日期: 2020-08-02

代理商名称

DIGIKEY

库存

2938

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

5499

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

5162

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

2236

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-08-02

获取样片 立即购买
批量生产
EAR99 NEC Tape And Reel SSOP 10 - - CHINA 0.836 / 1k
L4984D Available at 5 distributors

...的经销商可用性L4984D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1441 1 马上订购
ARROW EUROPE 90 0 马上订购
Newark Element14 AMERICA 500 0 马上订购
MOUSER WORLDWIDE 1813 1 马上订购
Farnell Element14 EUROPE 1340 1 马上订购

代理商库存报告日期: 2020-08-02

代理商名称

DIGIKEY

库存

1441

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

90

Min.Order

0

地区

EUROPE 马上订购

Newark Element14

库存

500

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

1813

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

1340

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-08-02

立即购买
批量生产
EAR99 NEC Tube SSOP 10 - - MOROCCO 0.836 / 1k

L4984DTR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.836 / 1k

...的经销商可用性L4984DTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2938 1 马上订购
ARROW EUROPE 5499 0 马上订购
MOUSER WORLDWIDE 5162 1 马上订购
Farnell Element14 EUROPE 2236 1 马上订购

代理商库存报告日期: 2020-08-02

代理商名称

DIGIKEY

库存

2938

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

5499

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

5162

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

2236

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-08-02

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SSOP 10

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.836 / 1k

Country of Origin

CHINA

L4984D

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.836 / 1k

...的经销商可用性L4984D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1441 1 马上订购
ARROW EUROPE 90 0 马上订购
Newark Element14 AMERICA 500 0 马上订购
MOUSER WORLDWIDE 1813 1 马上订购
Farnell Element14 EUROPE 1340 1 马上订购

代理商库存报告日期: 2020-08-02

代理商名称

DIGIKEY

库存

1441

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

90

Min.Order

0

地区

EUROPE 马上订购

Newark Element14

库存

500

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

1813

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

1340

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-08-02

ECCN (EU)

NEC

包装类型

Tube

封装

SSOP 10

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.836 / 1k

Country of Origin

MOROCCO

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商