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STEVAL-ILL042V1 Datasheet(PDF) 1 Page - STMicroelectronics |
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STEVAL-ILL042V1 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 4 page For further information contact your local STMicroelectronics sales office. March 2012 Doc ID 022285 Rev 2 1/4 4 STEVAL-ILL042V1 60 W high power factor flyback LED driver based on the L6562AT and TSM101 Data brief Features ■ Mains voltage range: VACmin = 185 Vac, VACmax = 265 Vac ■ Minimum mains frequency: fL = 47 Hz ■ DC output voltage: Vout = 130 V ■ Maximum output current: Iout = 0.462 A ■ Minimum switching frequency: fSWmin = 57 Hz ■ Reflected voltage: VR = 195 V ■ Leakage inductance spike: Vspike = 100 V ■ Expected efficiency: 92 % ■ RoHS compliant Description The STEVAL-ILL042V1 demonstration board is a LED power supply in high PF flyback configuration able to drive a 60 W LED array. The board is based on the L6562AT and the TSM101 controller. This configuration uses an isolated feedback with an optocoupler and a secondary side reference/error amplifier, the TSM101, for voltage and current regulation. The TSM101 includes two op-amps. One op-amp is used for constant voltage control and the other one for constant current control. The L6562AT is a PFC controller operating in transition mode. The highly linear multiplier includes a special circuit which is able to reduce AC input current distortion, allowing wide-range mains operation with an extremely low THD, even over a large load range. Efficiency is high at heavy load, more than 90% is achievable. This system, designed using the L6562AT and the TSM101 controller, offers several advantages in terms of output current and voltage stability. www.st.com |
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