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  • L6668 is a current-mode primary controller IC, designed to build single-ended converters.

    The IC drives the system at fixed frequency at heavy load and an improved Standby function causes a smooth frequency reduction as the load is progressively reduced. At very light load the device enters a special operating mode (burst-mode with fixed, externally programmed peak current) that, in addition to the on-board high-voltage start-up and the very low quiescent current, helps keep low the consumption from the mains and be compliant with energy saving regulations. To allow meeting compliance with these standards in power-factor-corrected systems too, an interface with the PFC controller is provided that enables to turn off the pre-regulator when the load level falls below a threshold.
    The IC includes also a programmable soft-start, slope compensation for stable operation at duty cycles greater then 50%, a disable function, a leading edge blanking on current sense to improve noise immunity, latched disable for OVP or OTP shutdown and an effective two-level OCP able to protect the system even in case the secondary diode fails short.

    主要特性

    • LATCHED DISABLE FOR OVP/OTP FUNCTION
    • DISABLE FUNCTION (ON/OFF CONTROL)
    • 2% PRECISION REFERENCE VOLTAGE EXTERNALLY AVAILABLE
    • PROGRAMMABLE SOFT-START
    • BLUE ANGEL, ENERGY STAR, EU CODE OF CONDUCT COMPLIANT
    • ±800 mA TOTEM POLE GATE DRIVER WITH INTERNAL CLAMP AND UVLO PULL-DOWN
    • SO16 PACKAGE ECOPACK®
    • PULSE-BY-PULSE & HICCUP-MODE OCP
    • SLOPE COMPENSATION
    • MULTIPOWER BCD TECHNOLOGY
    • ON-BOARD HIGH-VOLTAGE START-UP
    • LOAD-DEPENDENT CURRENT-MODE CONTROL: FIXED-FREQUENCY (HEAVY LOAD), FREQUENCY FOLDBACK (LIGHT LOAD), BURST-MODE (NO-LOAD)
    • LOW QUIESCENT CURRENT (< 2 mA)
    • INTERFACE WITH PFC CONTROLLER
    • IMPROVED STANDBY FUNCTION

样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
L6668 SO-16 Tube
批量生产
0.8544 1000 EAR99 CHINA 没有经销商,请联系我们的销售办事处
L6668TR SO-16 Tape And Reel
批量生产
0.8544 1000 EAR99 CHINA 没有经销商,请联系我们的销售办事处

L6668

封装

SO-16

包装类型

Tube

单价(US$)

0.8544*

供货状态

批量生产

单价(US$)

0.8544

数量

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L6668TR

封装

SO-16

包装类型

Tape And Reel

单价(US$)

0.8544*

供货状态

批量生产

单价(US$)

0.8544

数量

1000

ECCN (US)

EAR99

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

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    • 描述 版本 文档大小 操作
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      SMPS for high-end PVR based on L6668
      1.2
      568.5 KB
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      AN2242

      Reference design: high performance, L6668-based flyback converter for set-top boxes and PVRs

      AN2600

      SMPS for high-end PVR based on L6668

    • 描述 版本 文档大小 操作
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演示和培训资料

    • 描述 版本 文档大小 操作
      Primary side regulation controllers portfolio
      1.1 MB
      PDF

      Primary side regulation controllers portfolio

出版刊物和宣传资料

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      4.89 MB
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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
L6668
批量生产
SO-16 工业 Ecopack2
L6668TR
批量生产
SO-16 工业 Ecopack2

L6668

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6668TR

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

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

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