概述
样片和购买
解决方案
Documentation
CAD Resources
工具与软件
质量与可靠性
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Sales Briefcase
  • 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

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CAD/EDA Symbols, Footprints and Models

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**
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

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
L6668 没有经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube SO-16 - - PHILIPPINES 0.8544 / 1k
L6668TR Available at 1 distributors

...的经销商可用性L6668TR

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 2098 1 马上订购

代理商库存报告日期: 2020-10-21

代理商名称

MOUSER

库存

2098

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-10-21

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel SO-16 - - PHILIPPINES 0.8544 / 1k

L6668

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.8544 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

SO-16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.8544 / 1k

Country of Origin

PHILIPPINES

L6668TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.8544 / 1k

...的经销商可用性L6668TR

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 2098 1 马上订购

代理商库存报告日期: 2020-10-21

代理商名称

MOUSER

库存

2098

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-10-21

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.8544 / 1k

Country of Origin

PHILIPPINES

(*) 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