STEVAL-ILL013V1 Datasheet, PDF (4/43 Pages) STMicroelectronics – 80 W offline LED driver with PFC

UM0670
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STEVAL-ILL013V1 demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
STEVAL-ILL013V1 block schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High PF boost converter design concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Modified buck converter with dimming design concept. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
STEVAL-ILL013V1 with PWM module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
High PFC boost converter with the L6562A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Modified buck converter with the L6562A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Efficiency over the whole input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power factor for wide input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Detailed power factor for wide input voltage range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Total harmonic distortion for wide input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Output LED current dimming capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Output LED current waveform (I_LED = 350 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Output LED current for different LED voltages (I_LED = 350 mA). . . . . . . . . . . . . . . . . . . . . 20
Output LED current waveforms (I_LED = 700 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Output LED current for different LED voltage (I_LED = 700 mA). . . . . . . . . . . . . . . . . . . . . . 21
Output LED current waveform (I_LED = 1000 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Output LED current for different LED voltage (I_LED = 1000 mA). . . . . . . . . . . . . . . . . . . . . 22
Power MOSFET turn ON and OFF measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LED current ripple for the 100 nF output capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
EN61000-3-2 analysis for LED current of 350 mA and V_IN from 85 V to 160 VAC . . . . . . 23
EN61000-3-2 analysis for LED current of 350 mA and V_IN from 180 V to 265 VAC . . . . . 24
EN61000-3-2 analysis for LED current of 700 mA and V_IN from 85 V to 160 VAC . . . . . . 24
EN61000-3-2 analysis for LED current of 700 mA and V_IN from 180 V to 265 VAC . . . . . 24
EN61000-3-2 analysis for LED current of 1000 mA and V_IN from 85 V to 160 VAC . . . . . 25
EN61000-3-2 analysis for LED current of 1000 mA and V_IN from 180 V to 265 VAC . . . . 25
Average limit measurement from 150 kHz to 30 MHz (I_LED = 350 mA) . . . . . . . . . . . . . . . 26
Quasi-peak limit measurement from 9 kHz to 150 kHz (I_LED = 350 mA) . . . . . . . . . . . . . . 26
Quasi-peak limit measurement from 150 kHz to 30 MHz (I_LED = 350 mA). . . . . . . . . . . . . 27
Average limit measurement from 150 kHz to 30 MHz (I_LED = 700 mA) . . . . . . . . . . . . . . . 27
Quasi-peak limit measurement from 9 kHz to 150 kHz (I_LED = 700 mA) . . . . . . . . . . . . . . 28
Quasi-peak limit measurement from 150 kHz to 30 MHz (I_LED = 700 mA). . . . . . . . . . . . . 28
Average limit measurement from 150 kHz to 30 MHz (I_LED = 1000 mA) . . . . . . . . . . . . . . 29
Quasi-peak limit measurement from 9 kHz to 150 kHz (I_LED = 1000 mA) . . . . . . . . . . . . . 29
Quasi-peak limit measurement from 150 kHz to 30 MHz (I_LED = 1000 mA). . . . . . . . . . . . 30
Average limit measurement from 150 kHz to 30 MHz (I_LED = 0 mA) . . . . . . . . . . . . . . . . . 30
Quasi-peak limit measurement from 9 kHz to 150 kHz (I_LED = 0 mA) . . . . . . . . . . . . . . . . 31
Quasi-peak limit measurement from 150 kHz to 30 MHz (I_LED = 0 mA) . . . . . . . . . . . . . . . 31
Proper startup circuit design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Proper startup using diode D104 and capacitor C110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Improper startup without using diode D104 and capacitor C110 . . . . . . . . . . . . . . . . . . . . 33
Design improvement allowing zero dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Voltage on capacitor C110 and output bus voltage of 400 V . . . . . . . . . . . . . . . . . . . . . . . 35
Doc ID 15327 Rev 2
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