HVLED805数据手册集成电路(IC)的LED驱动器规格书PDF

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 |
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 | |
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 |