STEVAL-ILL043V1:High end, 75 W high power factor flyback LED driver based on the L6562A with two dimmable strings

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%.

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
产品规格
DescriptionVersionSize
DB1662: High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings1.0124 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ILL043V1 gerber files1.0131 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ILL043V1 BOM3.070 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ILL043V1 schematics3.0109 KB
许可协议
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
样片和购买
型号Core ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ILL043V1L6562A175.181NECEAR99ITALY
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ILL043V1CARDIndustrialEcopack2
High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings STEVAL-ILL043V1
High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings STEVAL-ILL043V1
High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings STEVAL-ILL043V1
High end, 75 W high power factor flyback LED driver based on L6562A with two dimmable strings STEVAL-ILL043V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2