ST Life.augmented


High end, 75 W high power factor flyback LED driver based on the L6562A with two dimmable strings
  • active 活性

The STEVAL-ILL043V1 demonstration board is a high-PF flyback configuration in order to drive a new design of the 75 W LED array based on the L6562A controller, with a much reduced BOM cost.

This configuration uses an isolated feedback with an optocoupler and a secondary side reference/error amplifier. The inverse buck converter based on the L6562A is used for constant voltage and constant current control in double dimmable channels.

The L6562A is a PFC controller operating in Transition mode. The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range.

The inverse buck converter shows good performance in terms of power switch control and conditioning circuitry signal for the current sensing. In fact, this topology of converter allows easy driving of the switch referred to ground by using an L6562A driver.

An integrated auxiliary power supply provides an energy saving action and a remote control monitoring function for the system.

This ballast designed by using the L6562A and the buck inverse converter offers more advantages in terms of output current and voltage stability.

The key benefit is the very high efficiency that, at full load, is almost 90%.

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Errata Sheet
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Data Brief

Key Features

  • Mains voltage range VACmin= 165Vac, VACmax= 277 Vac
  • Minimum mains frequency fl = 47 Hz
  • DC output voltage Vout= 65 V
  • Maximum output current Iout= 1.5 A
  • Maximum 2fL output ripple ΔVO% = 1.0%
  • Minimum switching frequency fswmin= 40 KHz
  • Expected efficiency: 90%
  • RoHS compliant


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1662: High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings
1.0 124 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
STEVAL-ILL043V1 gerber files
1.0.0 131 KB

Bill of Materials

描述 版本 大小
1.0.0 70 KB

Schematic Pack

描述 版本 大小
STEVAL-ILL043V1 schematics
1.0.0 110 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL043V1ActiveL6562ABuy Direct175.17Distributor reported inventory date: 2014-04-18
Distributor NameRegionStockMin. order

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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