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
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

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.
  • 所有功能

    • 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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特别推荐

相关应用

工业

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      EVALHVLED805

      批量生产

      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

      LED和一般照明解决方案评估板 --
      EVALHVLED805

      描述:

      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

      STEVAL-ILL037V1

      批量生产

      基于HVLED805的3.2 W LED电源

      LED和一般照明解决方案评估板 --
      STEVAL-ILL037V1

      描述:

      基于HVLED805的3.2 W LED电源

EDA Symbols, Footprints and 3D Models

STMicroelectronics - HVLED805

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D 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**
HVLED805TR
批量生产
SO-16 工业 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

转换器

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]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

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
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
HVLED805TR Available at 1 distributors

经销商的可用性HVLED805TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2489 1 马上订购

代理商库存报告日期: 2021-04-13

代理商名称

DIGIKEY

库存

2489

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-13

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel SO-16 - - THAILAND 0.5112 / 1k

HVLED805TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5112 / 1k

经销商的可用性HVLED805TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2489 1 马上订购

代理商库存报告日期: 2021-04-13

代理商名称

DIGIKEY

库存

2489

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-13

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

0.5112 / 1k

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