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HVLED805数据手册集成电路(IC)的LED驱动器规格书PDF

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厂商型号

HVLED805

参数属性

HVLED805 封装/外壳为16-SOIC(0.154",3.90mm 宽);包装为卷带(TR);类别为集成电路(IC)的LED驱动器;产品描述:IC LED DRIVER OFFL PWM 16SO

功能描述

具有一次感应功能的5W离线LED驱动器
IC LED DRIVER OFFL PWM 16SO

封装外壳

16-SOIC(0.154",3.90mm 宽)

制造商

ST STMicroelectronics

中文名称

意法半导体 意法半导体集团

数据手册

原厂下载下载地址下载地址二

更新时间

2025-8-7 23:00:00

人工找货

HVLED805价格和库存,欢迎联系客服免费人工找货

HVLED805规格书详情

描述 Description

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.

特性 Features

• 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

简介

HVLED805属于集成电路(IC)的LED驱动器。由制造生产的HVLED805LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列,可通过标称固定电压的电源为负载(通常为发光二极管)提供电流,并且电流可控。它与用于电压调节的类似产品的主要区别在于,这类器件提供较低的反馈电压(以提高系统能效),而且通常可对器件工作点进行外部控制,可在照明应用中用于实现调光功能。

技术参数

更多
  • 制造商编号

    :HVLED805

  • 生产厂家

    :ST

  • Marketing Status

    :Active

  • General Description

    :Off-line LED driver with primary-sensing up to 5W

  • RDS(on)_max(Ω)

    :14

  • Transistor Breakdown Voltage_min(V)

    :800

  • Drain Current_nom(A)

    :1

供应商 型号 品牌 批号 封装 库存 备注 价格
ST(意法)
24+
NA/
8735
原厂直销,现货供应,账期支持!
询价
ST
2016+
SOP16
2554
只做原装,假一罚十,公司可开17%增值税发票!
询价
ST
20+
SOIC-16
69052
原装优势主营型号-可开原型号增税票
询价
ST/意法
24+
SOP16
880000
明嘉莱只做原装正品现货
询价
ST
24+
SOP-16
20000
全新原厂原装,进口正品现货,正规渠道可含税!!
询价
ST
2016+
SOP16
6528
房间原装进口现货假一赔十
询价
ST
11+
SOP16
2554
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
ST/意法
24+
SOIC-16
3800
大批量供应优势库存热卖
询价
STMicr
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
ST
22+
SOP16
9000
只做原装假一罚十
询价