L4985

批量生产

CCM PFC controller with high voltage startup

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样片和购买
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产品概述

描述

The L4985 is a peak current-mode PFC controller for boost converter with a proprietary multiplier “emulator” which in addition to the innovative THD optimizers guarantee very low Total Harmonic Distortion (THD) performance in all operating conditions. The device comes in a pin SO package and offers a high performance/low-component count 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 some kW. The device, thanks to a proprietary off-time modulator, operates in quasi-fixed frequency in all operating conditions. Two options are available, 65 kHz for A and 130 kHz for B.
The 800V high voltage start-up block includes also the circuitry to discharge the X-capacitors of the EMI filter to a safe level. This allows the unit to meet safety regulation (such as IEC 61010-1 or IEC 62368-1) without using the traditional discharge resistor in parallel to the X-capacitors.
The device features low consumption and disable functions allowing usage in applications supposed to comply even with the latest energy saving requirements issued by Energy Star, the Department of Energy (DoE) in the United States, the European Code of Conduct, the European Union’s Ecodesign Directive, and other guidelines.
In addition to an overvoltage protection able to keep the output voltage under control during transient conditions, the IC is provided also with a protection against feedback loop failures or erroneous settings and boost inductor saturation. The brownout protection function allows to design medical equipment according to the latest regulations driven by IEC 60601-1-2 which requires the output regulation in case of mains dips lasting up to 500 msec. Soft-start limits the peak current.
The totem-pole output stage, capable of 0.7 A source and 1.5 A sink current, is suitable for big MOSFET or IGBT drives.
  • 所有功能

    • Peak current mode CCM-operated
    • 800 V high voltage startup with integrated input voltage sensing
    • Active input filter capacitor discharge
    • Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM)
    • Extremely few external components
    • Protections: feedback loop failure, OVP, OCP, inductor saturation, brown-in, brownout (compliant to medical SMPS standards)
    • Inductor current sense
    • Disable and low consumption function
    • In-rush current monitoring
    • Soft-start for smooth startup
    • 1.2% (@ Tj = 25 °C) internal reference voltage
    • 65 kHz (A version) and 130 kHz (B version) switching frequency
    • SO8 package

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    • 产品型号
      状态
      描述
      类型
      供应商

      EVL4985-350W

      批量生产

      Low-THD 350W CCM-PFC pre-regulator based on L4985

      AC-DC Converter ST
      EVL4985-350W

      描述:

      Low-THD 350W CCM-PFC pre-regulator based on L4985

EDA符号、封装和3D模型

STMicroelectronics - L4985

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

Symbols

符号

Footprints

封装

3D model

3D模型

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**
L4985A
批量生产
SO-8 工业 Ecopack3
L4985ATR
批量生产
SO-8 工业 Ecopack3
L4985B
批量生产
SO-8 工业 Ecopack3
L4985BTR
批量生产
SO-8 工业 Ecopack3

L4985A

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

L4985ATR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

L4985B

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

L4985BTR

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) 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

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
L4985ATR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 1.1031 / 1k
L4985A 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube SO-8 - - CHINA 1.1031 / 1k
L4985BTR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 1.1031 / 1k
L4985B 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube SO-8 - - CHINA 1.1031 / 1k

L4985ATR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1031 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1031 / 1k

Country of Origin

CHINA

L4985A

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1031 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1031 / 1k

Country of Origin

CHINA

L4985BTR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1031 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1031 / 1k

Country of Origin

CHINA

L4985B

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1031 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1031 / 1k

Country of Origin

CHINA

(*) 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