HVLED805

批量生产

具有一次感应功能的5W离线LED驱动器

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概述
样片和购买
解决方案
资源
工具与软件
质量与可靠性
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  • The HVLED805 is a high-voltage primary switcher intended for operating directly from the rectified mains with minimum external parts to provide an efficient, compact and cost effective solution for LED driving. It combines a high-performance low-voltage PWM controller chip and an 800V, avalanche-rugged power MOSFET, in the same package.

    The PWM is a current-mode controller IC specifically designed for ZVS (Zero Voltage Switching) fly-back LED drivers, with constant output current (CC) regulation using primary-sensing feedback. This eliminates the need for the opto-coupler, the secondary voltage reference, as well as the current sense on the secondary side, still maintaining a good LED current accuracy. Moreover it guarantees a safe operation when short circuit of one or more LEDs occurs.
    In addition, the device can also provide a constant output voltage regulation (CV): it makes the application able to work safely when the LED string opens due to a failure.
    Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET’s turn-on. This input serves also as both output voltage monitor, to perform CV regulation, and input voltage monitor, to achieve mains-independent CC regulation (line voltage feed forward).
    The maximum switching frequency is top-limited below 166 kHz, so that at medium-light load a special function automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. At very light load, the device enters a controlled burst-mode operation that, along with the built-in high-voltage start-up circuit and the low operating current of the device, helps minimize the residual input consumption.
    Although an auxiliary winding is required in the transformer to correctly perform CV/CC regulation, the chip is able to power itself directly from the rectified mains. This is useful especially during CC regulation, where the fly-back voltage generated by the winding drops.
    In addition to these functions that optimize power handling under different operating conditions, the device offers protection features that considerably increase end-product’s safety and reliability: auxiliary winding disconnection or brownout detection and shorted secondary rectifier or transformer’s saturation detection. All of them are auto restart mode.

    主要特性

    • 800 V, avalanche rugged internal power MOSFET
    • 5% accuracy on constant LED output current with primary control
    • Optocoupler not needed
    • Quasi-resonant (QR) zero voltage switching (ZVS) operation
    • Internal HV start-up circuit
    • Open or short LED string management
    • Automatic self supply
    • Input voltage feed-forward for mains independent cc regulation

电路原理图

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适合您的资源

相关应用

LED照明和控制

评估工具

    • 产品型号

      基于HVLED805的评估板:具有初级侧电流调节的4.2 W隔离LED驱动器

      基于HVLED805的3.2 W LED电源

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS6988
      Off-line LED driver with primary-sensing
      1.1
      472.73 KB
      PDF
      DS6988

      Off-line LED driver with primary-sensing

    • 描述 版本 文档大小 操作
      AN3360
      3.2 W LED power supply based on HVLED805
      2.2
      2.8 MB
      PDF
      AN3360

      3.2 W LED power supply based on HVLED805

    • 描述 版本 文档大小 操作
      AN3360
      3.2 W LED power supply based on HVLED805
      2.2
      2.8 MB
      PDF
      AN3360

      3.2 W LED power supply based on HVLED805

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      HVLED805 on -chip solution for LED driving 2.1
      3.31 MB
      PDF
      HVLED: Lighting the future 12.2018
      700.32 KB
      PDF

      HVLED805 on -chip solution for LED driving

      HVLED: Lighting the future

质量与可靠性

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
HVLED805TR
批量生产
SO-16 Industrial Ecopack2

HVLED805TR

Package:

SO-16

Material Declaration**:

PDF XML

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

eDesignSuite

LED驱动器

Input

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

LED自定义

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
封装
包装类型
温度(ºC) ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
HVLED805TR Available at 1 distributors

...的经销商可用性HVLED805TR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2494 1 马上订购

代理商库存报告日期: 2020-07-04

代理商名称

DIGIKEY

Stock

2494

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-07-04

获取样片
批量生产
SO-16 Tape And Reel - - EAR99 THAILAND 0.5112 / 1k

HVLED805TR

供货状态

批量生产

单价(US$)

0.5112

Budgetary Price (US$)*/Qty

0.5112 / 1k

...的经销商可用性HVLED805TR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2494 1 马上订购

代理商库存报告日期: 2020-07-04

代理商名称

DIGIKEY

Stock

2494

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-07-04

封装

SO-16

包装类型

Tape And Reel

Operating Temperature (°C)

(最小值)

-

(最大值)

-

ECCN (US)

EAR99

Country of Origin

THAILAND

(*) 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