NCL30170 EVB 20 W Direct AC LED Driver Analog and Phase-cut Dimming Evaluation Board User Manual

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1 NCL30170 EVB 20 W Direct AC LED Driver Analog and Phase-cut Dimming Evaluation Board User Manual -. Low line 20W ADIM (Analog Dimming) -. Low line 20W PCDIM (Phase-cut Dimming) -. High line 20W ADIM (Analog Dimming) -. High line 20W PCDIM (Phase-cut Dimming) NCL30170 EVB report Rev. A MAY

2 Overview ON Semiconductor This manual covers the specification, theory of operation, testing and construction of the NCL30170 demonstration board. NCL30170 has two operation modes according to dimming type. The NCL30170 evaluation boards demonstrates 20W Analog and Phase-cut dimming with accurate current regulation and low THD performance. Specifications Input voltage V ac V ac Low line ADIM/PCDIM High line ADIM/PCDIM Line Frequency 50 Hz / 60 Hz Output Power 20W Power Factor (Maximum LED output) 0.95 THD ( Nominal input voltage) 10% Typ. Min Max Line Regulation + /- 2% Analog Dimming range < 5 % Start Up Time < 200 msec Percent Flicker < 30% Lighting surge EMI CM: +/-2.5kV (Line to PE) DM: +/-2.5kV (Line to Neutral) Conducted Typ. With E-cap ANSI/IEEE C Class A 9kHz 30MHz As illustrated, the key features of this demo board include: Accurate Constant LED Current across input voltage range Selectable LED Channel counts using advanced topology Excellent Power Factor and THD with sinusoidal current shape Wide Analog dimming range < 5 % Excellent Phase-cut dimmer compatibility Protections o Input Over Voltage Protection o Thermal Shut Down o Sensing Resistor Short Protection NCL30170 EVB report Rev. A MAY

3 Theory of Operation Power Stage : ON s Proprietary Auto Commutation Topology NCL30170 controls multiple LED channels in new Direct AC Drive topology. As shown the configuration, all switches are controlled by one amplifier and blocking Diodes (D OUT1, D OUT2 ) are connected between previous channel MOSFET source and next channel MOSFET drain. I IN + V F1 - + V F2 - + V F3 - Rectified V IN LED CH1 LED CH2 LED CH3 Voltage Amplifier V CS(SHA-REF) D OUT1 D OUT2 M 1 M 2 M 3 CS Figure 1. ON s Proprietary Direct AC LED Driver Topology As input voltage increases, the HV diodes are turned off one by one in auto commutation of the ambient switches. Therefore, one main amplifier controls all the channel current with one reference. The amplifier CS shaping reference V CS(SHA REF), is sinusoidal so that the input current is optimally sinusoidal with 0.99 PF and less than 10% THD compared to the conventional parallel topology which hardly meets THD in class C due to the stepped input current. The main voltage amplifier reference, V CS(SHA-REF) is described in detail in the next chapter. NCL30170 EVB report Rev. A MAY

4 The state diagram of the auto commutation topology according to the input voltage is as follows. T0 (V IN < V F1 ) : There is no current path. All switches gate voltage is pulled up (=VDD) T1(V F1 < V IN < V F1+VF2 ) : switch M 1 regulates LED CH1 current based on V CS(SHA-REF) and other switches (M 2, M 3 ) are fully turned on. T2 (V F1 +V F2 < V IN < V F1 +V F2 +V F3 ): current starts flowing through M 2 and M 1 is gradually turned off by blocking diode(d OUT1 ) as M 2 Drain voltage is increased. So, it can only one amplifier controls all the channel current with a reference and auto commutation is easily implemented. T3 (V IN > V F1 +V F2 +V F3 ) :By the auto commutation theory, Switch M 2 is slowly turned off by blocking diode D OUT2, and LED current is regulated by M 3. V F1 +V F2 +V F3 V F1 +V F2 V IN V F1 I IN M 1 REG OFF OFF OFF REG M 2 ON REG OFF REG ON M 3 ON ON REG ON ON T 0 T 1 T 2 T 3 Figure 2. State Diagram of Auto Commutation Topology NCL30170 EVB report Rev. A MAY

Circuit Modifications Average LED Current As previously mentioned, the average LED current is determined by average CS voltage. In non-diming condition, V CS(AVG-REF) is set to 1.5V by VDIM voltage.

Adjust the number of LEDs In Direct AC LED Driver solution, the number and configuration of LEDs is critical factor to overall system performance.

5 Circuit Modifications Average LED Current As previously mentioned, the average LED current is determined by average CS voltage. In non-diming condition, V CS(AVG-REF) is set to 1.5V by VDIM voltage. Therefore, the first channel LED average current (I AVG LED) can calculated by the formula below. Also, this current is tightly regulated by closed-loop control. Adjust the number of LEDs In Direct AC LED Driver solution, the number and configuration of LEDs is critical factor to overall system performance. So, NCL W EVB has extra LEDs for each channel to adjust the number of LEDs. Therefore, it is possible that user can freely change the LED configuration to suit for specifications. It can be set by open or short connected resistor in parallel with the LEDs as below figure 5. Caution: When increasing the number of LEDs, check the rated voltage of the LED output capacitor (C LED 1-3 ) considering the total LED forward voltage. For example, LL20W ADIM is initially set by 3channel (4-10-9) and can expand the number of LEDs up to The related information is summarized as below Table 1. Figure 5. Adjust the number of LEDs NCL30170 EVB report Rev. A MAY

To improve line frequency flicker, connect parallel capacitor (C LED1 - C LED3 ) is inserted in each channel LED with a blocking diode.

6 Percent Flicker Table 1. LED configuration for EVB Direct AC LED solution, the LED current is nearly equal to the input current, so there is 100Hz or 120Hz flicker will exist depending on the line frequency. To improve line frequency flicker, connect parallel capacitor (C LED1 - C LED3 ) is inserted in each channel LED with a blocking diode. (D 1 - D 3 ) For 20W EVB, it has less than 30% percent flicker performance over the all dimming range. Power scalability The advantage of Direct AC LED solution with NCL30170 is power scalability. The auto commutation topology makes it easy to expand the number of LED channels. Therefore, it is possible to drive W by expanding the number of LED channels with single controller. This is more efficient and simpler to implement than conventional DACD solution using multiple ICs. AC Input CS shape regulation Voltage Amplifier VCS(SHA-REF) 8 OUT VCS-SHA-REF generator 6 CS ON s System IP VIN 9 OTA VCS(AVG-REF) VCS-AVG-REF generator CS average regulation 5 4 FB DIM Analog dimming signal Figure 6. Power scalability using NCL30170 (7channel) NCL30170 EVB report Rev. A MAY

7 CBLD1 51p CDIM 47n RDIM N.C RHV1 13k HV NC BLD DIM FB CFB 1u VDD VIN OUT GND CS CVDD 50V / 2.2uF ON Semiconductor Schematic: Low line 20W ADIM IIN F1 Bel SSQ2 125V / 2A 2410 MOV CNR 10D221K Axial BD1 MB6S 600V DIM + DIM - CIN1 250V / 47nF Axial DHV LL-34 1N4148 RHV2 13k RHV3 13k NCL30170 Vaux + RCSL DSB 1N4148 LL-34 GND ROUTL 100 ohm DVDD 1N4148 LL-34 CVIN 100p RVIN1 330k RVIN2 330k RVIN3 300k D1 RVIN4 15k RLED1 CLED1 50V / 220uF CLED1_1 50V / 220uF LED CH1 : 4 EA ILED1 RPD1 D2 SW1 SOT323 FQT1N60C ZOUT1 24V SOD 123 RLED2 CLED2 100V / 100uF CLED2_1 100V / 100uF LED CH2 : 10 EA DOUT1 SOD-123F ILED2 RPD2 D3 SW2 SOT323 FQT1N60C ZOUT2 24V SOD 123 CSA 22nF RLED3 CLED3 100V / 47uF CLED3_1 100V / 47uF LED CH3 : 9 EA DOUT2 SOD-123F RSA 220 ohm ILED3 RPD3 RS1 43 0hm RCS1 20 ohm SW3 D-PAK FQD6N50C ZOUT3 24V SOD 123 RCS2 20 ohm RS2 43 0hm ZCS SOD 123 N.C L VAC: 108 ~ 132 N Figure 7. Low line 20W ADIM schematic NCL30170 EVB report Rev. A MAY

8 Bill of Material: Low line 20W ADIM Part Reference Part Description Q'ty Vendor Note PCB NCL W ADIM EVB 1 ANY NCL30170 IC SOIC10 1 ONsemi Controller F1 fast Acting 125V 2A SSQ Bel fuse MOV CNR10D221K 1 ANY BD1 Bridge diode 600V 0.5A, MB6S SOIC-4 1 ONsemi ZOUT1-3 SMD 24V Zener Diode, SOD ONsemi DHV, DSB, DVDD SMD Diode LL4148 (LL-34) 3 ONsemi DSB : option (external VDD) SW1, SW2 MOSFET FQT1N60C SOT ONsemi SW3 MOSFET FQD6N50C D-PAK 1 ONsemi DOUT1, DOUT2, D1-3 SMD Diode, SOD-123F 5 ONsemi RHV1, RHV2, RHV3 Resistor, 13K ohm 3 ANY ILED1-3, RCSL Resistor, 0 ohm 4 ANY RVIN1, RVIN2 Resistor, 330k ohm 2 ANY RVIN3 Resistor, 300k ohm 1 ANY RVIN4 Resistor, 15k ohm 1 ANY RPD1-3, RLED1-3 Resistor, ohm 6 ANY RCS1, RCS2 Resistor, 20 ohm 2 ANY RSA Resistor, 220 ohm 1 ANY RS1, RS2 Resistor, 43 ohm 2 ANY ROUTL Resistor, 100 ohm 1 ANY CIN1 Axial Flim Capacitor, 47nF / 250 V 1 ANY CVDD Capacitor, 50V 2.2uF 1 ANY CBLD1 Capacitor, 51pF 1 ANY CVIN Capacitor, 100pF 1 ANY CLED 1, CLED 1_1 SMD Al.capacitor 50V 220uF BXJ J10 2 SAMYOUNG CLED 2, CLED 2_1 SMD Al.capacitor 100V 100uF BXJ K14 2 SAMYOUNG CLED 3, CLED 3_1 SMD Al.Capacitor 100V 47uF MVK J10 2 SAMYOUNG CDIM Capacitor 47nF 1 ANY CSA Capcitor 22nF 1 ANY CFB Capacitor 1uF 1 ANY LED Configuration LED Luxeon D 6V 240mA Default LED configuration : LED max counts ( ) 23 Luxeon NCL30170 EVB report Rev. A MAY

9 Schematic: High line 20W ADIM F1 350V / 2.5A 2410 IIN MOV 10D391K Axial BD1 MB6S 600V CBLD1 51p DIM + DIM - CIN1 68nF / 450V Axial CDIM 47n DHV LL-34 1N4148 RDIM N.C RHV1 13k RHV2 13k RHV3 13k HV NC BLD DIM FB CFB 1u NCL30170 VDD VIN OUT GND CS Vaux + DSB 1N4148 LL-34 CVDD 50V / 2.2uF ROUTL 100 ohm GND RCSL RLED1 CLED1 100V / 47uF CLED1_1 N.C D1 LED CH1 ILED1 RVIN1 : 9 EA 330k RVIN2 330k DVDD RVIN3 1N4148 LL k CVIN 100p RVIN4 7.5k To improve ment standby power, RVIN total should be increased 2~3Mohm RPD1 D2 SW1 SOT323 FQT1N60C ZOUT1 24V SOD 123 RLED2 CLED2 160V / 33uF CLED2_1 160V / 33uF LED CH2 ILED2 : 19 EA DOUT1 SOD-123F RPD2 D3 SW2 SOT323 FQT1N60C ZOUT2 24V SOD 123 CSA 22nF RLED3 CLED3 160V / 33uF CLED3_1 160V / 33uF LED CH3 ILED3 : 16 EA DOUT2 SOD-123F RSA 220 ohm RPD3 RS1 68 0hm RCS1 36 ohm SW3 D-PAK FQD6N50C ZOUT3 24V SOD 123 RS2 68 0hm RCS2 36 ohm ZCS SOD 123 N.C L VAC: 198 ~ 264 N Figure 8. High line 20W ADIM schematic NCL30170 EVB report Rev. A MAY

10 Bill of Material: High line 20W ADIM Part Reference Part Description Q'ty Vendor Note PCB NCL W ADIM EVB 1 ANY NCL30170 IC SOIC10 1 ONsemi Controller F1 350V 2.5A 0679H Bel fuse MOV 10D391K 1 ANY BD1 Bridge diode 600V 0.5A, MB6S SOIC-4 1 ONsemi ZOUT1-3 SMD 24V Zener Diode, SOD ONsemi DHV, DSB, DVDD SMD Diode LL4148 (LL-34) 3 ONsemi DSB : option (external VDD) SW1, SW2 MOSFET FQT1N60C SOT ONsemi SW3 MOSFET FQD6N50C D-PAK 1 ONsemi DOUT1, DOUT2, D1-3 SMD Diode, SOD-123F 5 ONsemi RHV1, RHV2, RHV3 Resistor, 13K ohm 3 ANY ILED1-3, RCSL Resistor, 0 ohm 4 ANY RVIN1,RVIN2 Resistor, 330k ohm 2 ANY RVIN3 Resistor, 300k ohm 1 ANY RVIN4 Resistor, 7.5k ohm 1 ANY RPD1-3, RLED1-3 Resistor, ohm 6 ANY RCS1, RCS2 Resistor, 36 ohm 2 ANY RSA Resistor, 220 ohm 1 ANY RS1, RS2 Resistor, 68 ohm 2 ANY ROUTL Resistor, 100 ohm 1 ANY CIN1 Axial Flim Capacitor, 68nF / 450 V 1 ANY CVDD Capacitor, 50V 2.2uF 1 ANY CBLD1 Capacitor, 51pF 1 ANY CVIN Capacitor, 100pF 1 ANY CLED 1 SMD Al.capacitor 100V 47uF MVK J10 1 SAMYOUNG CLED 2, CLED 2_1 SMD Al.capacitor 160V 33uF MVK K14 2 SAMYOUNG CLED 3, CLED 3_1 SMD Al.Capacitor 160V 33uF MVK K14 2 SAMYOUNG CDIM Capacitor 47nF 1 ANY CSA Capcitor 22nF 1 ANY CFB Capacitor 1uF 1 ANY LED Configuration LED Luxeon D 6V 240mA Default LED configuration : LED max counts ( ) 44 Luxeon NCL30170 EVB report Rev. A MAY

11 RBLD1 360 ohm CBLD1 820p CDIM 180n RDIM 430k RHV1 13k HV NC BLD DIM FB CFB 1u VDD VIN OUT GND CS CVDD 50V/4.7uF ON Semiconductor Schematic: Low line 20W PCDIM VIN.REC IIN VIN.REC RBLD2 360 ohm F1 Bel SSQ2 125V / 2A 2410 Only for PCDIM MOV CNR 10D221K Axial SWBLD SOT223 FQT1N60C ZBLD SOD123 22V CBLD2 180p BD1 MB6S 600V RBLD3 DBLD N.C CIN1 250V/ 47nF Axial DHV 1N4148 LL-34 RHV2 13k RHV3 13k RPC N.C NCL30170 Only for PCDIM RPBLD1 RPBLD2 1.5k 1.5k CPBLD 150n/250V Axial ZPBLD DPBLD SOD123 LL-34 22V 1N4148 RPBLD3 RCSL 0 ohm ROUTL 100 ohm DVDD 1N4148 LL-34 CVIN 820p RVIN1 330k RVIN2 300k RVIN3 270k D1 RVIN4 12k RLED1 CLED1 50V / 220uF CLED1_1 50V / 220uF LED CH1 : 4 EA ILED1 RPD1 D2 SW1 SOT223 FQT1N60C ZOUT1 24V SOD 123 RLED2 CLED2 100V / 100uF CLED2_1 100V / 100uF LED CH2 : 10 EA DOUT1 SOD-123F ILED2 RPD2 D3 SW2 SOT223 FQT1N60C ZOUT2 24V SOD 123 CSA 22n RLED3 CLED3 100V / 47uF CLED3_1 100V / 47uF LED CH3 : 9 EA DOUT2 SOD-123F RSA 220 ohm ILED3 RPD3 RS1 43 ohm RCS1 20 ohm SW3 D-PAK FQD6N50C ZOUT3 24V SOD 123 RS2 43 ohm RCS2 20 ohm ZCS SOD 123 N.C L VAC: 108~ 132 N Figure 9. Low line 20W PCDIM schematic NCL30170 EVB report Rev. A MAY

12 Bill of Material: Low line 20W PCDIM Part Reference Part Description Q'ty Vendor Note PCB NCL W PCDIM EVB 1 ANY NCL30170 IC SOIC10 1 ONsemi controller F1 125V 2A SSQ Bel fuse MOV CNR10D221K 1 ANY BD1 Bridge diode 600V 0.5A, MB6S SOIC-4 1 ONsemi ZPBLD, ZBLD SMD 22V Zener Diode, SOD ONsemi ZOUT1-3 SMD 24V Zener Diode, SOD ONsemi DHV, DPBLD, DVDD SMD Diode LL4148 (LL-34) 3 ONsemi SW1, SW2, SWBLD MOSFET FQT1N60C SOT ONsemi SW3 MOSFET FQD6N50C D-PAK 1 ONsemi DOUT1, DOUT2, D1-3 SMD Diode, SOD-123F 5 ONsemi RHV1-3 Resistor, 13K ohm 3 ANY RPBLD1, RPBLD2 Resistor, 1.5k ohm 2 ANY ILED1-3, RCSL, RPBLD3 Resistor, 0 ohm 5 ANY RVIN1 Resistor, 330k ohm 1 ANY RVIN2 Resistor, 300k ohm 1 ANY RVIN3 Resistor 270k ohm 1 ANY RVIN4 Resistor, 12k ohm 1 ANY RBLD1, RBLD2 Resistor 360 ohm 2 ANY RPD1-3, RLED1-3, RBLD3 Resistor, ohm 7 ANY RCS1, RCS2 Resistor, 20 ohm 2 ANY RSA Resistor, 220 ohm 1 ANY RS1, RS2 Resistor, 43 ohm 2 ANY ROUTL Resistor, 100 ohm 1 ANY RDIM Resistor, 430kohm 1 ANY CIN1 Axial Flim Capacitor, 47nF / 250 V 1 ANY CPBLD Axial Flim Capacitor, 150nF/ 250V 1 ANY CVDD Capacitor, 50V 4.7uF 1 ANY CVIN, CBLD1 Capacitor, 820pF 2 ANY CBLD2 Capacitor, 180pF 1 ANY CLED 1, CLED 1_1 SMD Al.capacitor 50V 220uF BXJ J10 2 SAMYOUNG CLED 2, CLED 2_1 SMD Al.capacitor 100V 100uF BXJ K14 2 SAMYOUNG CLED 3, CLED 3_1 SMD Al.Capacitor 100V 47uF MVK J10 2 SAMYOUNG CDIM Capacitor 180nF 1 ANY CSA Capcitor 22nF 1 ANY CFB Capacitor 1uF 1 ANY LED Configuration LED Luxeon D 6V 240mA Default LED configuration : LED max counts ( ) 23 Luxeon NCL30170 EVB report Rev. A MAY

13 RBLD1 560 ohm CBLD1 820p CDIM 180n RDIM 430k RHV1 13k HV NC BLD DIM FB CFB 1u VDD VIN OUT GND CS CVDD 50V/4.7uF ON Semiconductor Schematic: High line 20W PCDIM IIN VIN.REC VIN.REC F1 350V / 2.5A 2410 MOV 10D391K Axial RBLD2 560 ohm RA1 2K Only for PCDIM SWBLD SOT223 FQT1N60C ZBLD RA2 2K CA1 150n / 450V SOD123 22V CBLD2 180p BD1 MB6S 600V RBLD3 56k DBLD N.C CIN1 450V/ 47nF Axial DHV 1N4148 LL-34 RHV2 13k RHV3 13k RPC N.C NCL30170 Only for PCDIM RPBLD1 RPBLD2 2k 2k CPBLD 100n/450V Axial ZPBLD DPBLD SOD123 LL-34 22V 1N4148 RPBLD3 10 RCSL ROUTL 100 ohm DVDD 1N4148 LL-34 CVIN 820p RVIN1 330k RVIN2 330k RVIN3 300k D1 RVIN4 6.2k RLED1 CLED1 63V / 100uF CLED1_1 63V / 100uF LED CH1 : 9 EA ILED1 RPD1 D2 SW1 SOT223 FQT1N60C ZOUT1 24V SOD 123 RLED2 CLED2 160V / 33uF CLED2_1 160V / 33uF LED CH2 : 19 EA DOUT1 SOD-123F ILED2 RPD2 D3 SW2 SOT223 FQT1N60C ZOUT2 24V SOD 123 CSA 22n RLED3 CLED3 100V / 100uF CLED3_1 100V / 100uF LED CH3 : 16 EA DOUT2 SOD-123F RSA 220 ohm ILED3 RPD3 RS1 68 ohm RCS1 36 ohm SW3 D-PAK FQD6N50C ZOUT3 24V SOD 123 RS2 68 ohm RCS2 36 ohm ZCS SOD 123 N.C L VAC: 198 ~ 264 N Figure 10. High line 20W PCDIM schematic NCL30170 EVB report Rev. A MAY

14 Bill of Material: High line 20W PCDIM Part Reference Part Description Q'ty Vendor Note PCB NCL W PCDIM EVB 1 ANY NCL30170 IC SOIC10 1 ONsemi controller F1 350V 2.5A 0679H Bel fuse MOV 10D391K 1 ANY BD1 Bridge diode 600V 0.5A, MB6S SOIC-4 1 ONsemi ZPBLD, ZBLD SMD 22V Zener Diode, SOD ONsemi ZOUT1-3 SMD 24V Zener Diode, SOD ONsemi DHV, DPBLD, DVDD SMD Diode LL4148 (LL-34) 3 ONsemi SW1, SW2, SWBLD MOSFET FQT1N60C SOT ONsemi SW3 MOSFET FQD6N50C D-PAK 1 ONsemi DOUT1, DOUT2, D1-3 SMD Diode, SOD-123F 5 ONsemi RHV1-3 Resistor, 13K ohm 3 ANY RPBLD1-2 RA1-2 Resistor, 2k ohm 4 ANY ILED1-3, RCSL Resistor, 0 ohm 4 ANY RVIN1, RVIN2 Resistor, 330k ohm 2 ANY RVIN3 Resistor, 300k ohm 1 ANY RVIN4 Resistor, 6.2k ohm 1 ANY RBLD1, RBLD2 Resistor 560 ohm 2 ANY RPD1-3, RLED1-3 Resistor, ohm 6 ANY RBLD3 Resistor, 56k ohm 1 ANY RCS1, RCS2 Resistor, 36 ohm 2 ANY RSA Resistor, 220 ohm 1 ANY RS1, RS2 Resistor, 68 ohm 2 ANY ROUTL, RPBLD3 Resistor, 100 ohm 2 ANY RDIM Resistor, 430kohm 1 ANY CA1 Axial Film Capacitor, 150nF / 450V 1 ANY CIN1 Axial Flim Capacitor, 47nF / 450 V 1 ANY CPBLD Axial Flim Capacitor, 100nF/ 450V 1 ANY CVDD Capacitor, 50V 4.7uF 1 ANY CVIN, CBLD1 Capacitor, 820pF 2 ANY CBLD2 Capacitor, 180pF 1 ANY CLED 1, CLED 1_1 SMD Al.capacitor 63V 100uF BXJ J10 2 SAMYOUNG CLED 2, CLED 2_1 SMD Al.capacitor 160V 33uF BXJ K14 2 SAMYOUNG CLED 3, CLED 3_1 SMD Al.Capacitor 100V 100uF BXJ K14 2 SAMYOUNG CDIM Capacitor 180nF 1 ANY CSA Capacitor 22nF 1 ANY CFB Capacitor 1uF 1 ANY LED Configuration LED Luxeon D 6V 240mA Default LED configuration : LED max counts ( ) 44 Luxeon NCL30170 EVB report Rev. A MAY

15 Gerber Views: Low line / High line 20W ADIM Input Wires External VDD (option) DIM signal Figure 11. Low line / High line 20W ADIM Gerber view NCL30170 EVB report Rev. A MAY

16 Gerber Views: Low line / High line 20W PCDIM Input Wires Figure 12. Low line / High line 20W PCDIM Gerber view NCL30170 EVB report Rev. A MAY

17 ECA Pictures 20W ADIM: High line (PCB Diameter: 130mm) 20W PCDIM: Low line (PCB Diameter: 130mm) NCL30170 EVB report Rev. A MAY

18 Test Procedure Electrical Performance Low line 20W EVB Input Voltage Pin [W] VCS_AVG [V] PF THDi [%] 108Vac 120Vac 132Vac High line 20W EVB Input Voltage Pin [W] VCS_AVG [V] PF THDi [%] 198Vac 230Vac 264Vac NCL30170 EVB report Rev. A MAY

19 Dimming Performance Phase-cut Dimming curve Phase Angle [ ] LED Current Average [ma] Pin [W] Visible Flicker? Non Dim 180 Max PA Step #1 Step #2 Step #3 Step #4 Step #5 Step #6 Step #7 Step #8 Step #9 Step #10 Step #11 Step #12 Min PA Analog Dimming curve DIM Voltage [V] LED Current Average [ma] Pin [W] Visible Flicker? Non Dim Max PA Step #1 Step #2 Step #3 Step #4 Step #5 Step #6 Step #7 Step #8 Step #9 Step #10 Min PA NCL30170 EVB report Rev. A MAY

LED current [ma_avg] LED current [ma_avg] ON Semiconductor Test Data Phase-cut Dimming Mode : All system tests conducted with Heat sink (165mm x 145mm x 20mm) Figure 13.

20 LED current [ma_avg] LED current [ma_avg] ON Semiconductor Test Data Phase-cut Dimming Mode : All system tests conducted with Heat sink (165mm x 145mm x 20mm) Figure 13. Power Factor and THD over Input voltage (Low line PCDIM) Low line 20W PCDIM High line 20W PCDIM Input voltage [Vac] Input voltage [Vac] Average LED current Average LED current Figure 14. Line Regulation performance (PCDIM) NCL30170 EVB report Rev. A MAY

21 LED Current [ma-avg] ON Semiconductor Dimming Performance Phase-cut Dimming Curve Phase Angle [ ] LED Current_ave.[mA] Phase Angle [ ] LED Current Average [ma] Pin [W] Non Dim Max PA Step # Step # Step # Step # Step # Step # Step # Step # Step # Step # Step # Step # Min PA Figure 15. Dimming curve for Phase-cut Dimmer (Low line PCDIM) NCL30170 EVB report Rev. A MAY

22 Percent Flicker [%] ON Semiconductor Percent Flicker with Electrolytic capacitor 30 Percent Flicker for 20W PCDIM EVB Min Dimming 25% Dimming 50% Dimming 75% Dimming Non-dim Dimming Condition Low line High line Figure 16. Percent Flicker Performance (PDCIM) NCL30170 EVB report Rev. A MAY

Power Factor and THD over Input voltage (Low line ADIM) Low line 20W ADIM High line 20W ADIM 160 100 150 90 140 80 130

23 LED current [ma_avg] LED current [ma_avg] ON Semiconductor Test Data Analog Dimming Mode : All system tests conducted with Heat sink (165mm x 145mm x 20mm) Figure 17. Power Factor and THD over Input voltage (Low line ADIM) Low line 20W ADIM High line 20W ADIM Input voltage [Vac] Input voltage [Vac] Average LED current Average LED current Figure 18. Line Regulation performance (ADIM) NCL30170 EVB report Rev. A MAY

24 Dim ratio[%] Dim ratio[%] ON Semiconductor Dimming Performance Low line ADIM DIM pin Voltage [Vdc] 120Vac 108Vac 132Vac Figure 19. Analog Dimming curve (Low line 20W) High line ADIM DIM pin Voltage [Vdc] 220Vac 198Vac 264Vac Figure 20. Analog Dimming curve (High line 20W) NCL30170 EVB report Rev. A MAY

25 Percent Flicker [%] ON Semiconductor Percent Flicker with Electrolytic capacitor 25 Percent Flicker for 20W ADIM EVB Min Dim 20% Dimming 50% Dimming 75% Dimming Non dim Dimming Condition HL 20W ADIM LL 20W ADIM Figure 21. Percent Flicker Performance (ADIM) NCL30170 EVB report Rev. A MAY

26 Conducted EMI Figure 22. EMI Test result for NCL W EVB NCL30170 EVB report Rev. A MAY

Surge Test ON Semiconductor Test condition Boards mounted to 15cm x 15cm x 3cm heatsink Heatsink connected to Earth ground DM: Differential Mode test applies surge between Line and Neutral CM: Common

27 Surge Test ON Semiconductor Test condition Boards mounted to 15cm x 15cm x 3cm heatsink Heatsink connected to Earth ground DM: Differential Mode test applies surge between Line and Neutral CM: Common Mode test applies surge between Line + Neutral connected and Earth ground Ring wave: 7strikes / Combination wave: 3strikes Test result Combination wave Ring wave Figure 23. Surge Test (Ring wave / combination wave) Test EVB Result Surge Immunity Component LL 20W ADIM +/- 2.5kV passed MOV 10D221K (10pi) LL 20W PCDIM +/- 2.5kV passed MOV 10D221K (10pi) HL 20W ADIM +/- 2.5kV passed MOV 10D391K (10pi) HL 20W PCDIM +/- 2.5kV passed MOV 10D391K (10pi) Test EVB Result Surge Immunity Component LL 20W ADIM +/- 2.5kV passed MOV 10D221K (10pi) LL 20W PCDIM +/- 2.5kV passed MOV 10D221K (10pi) HL 20W ADIM +/- 2.5kV passed MOV 10D391K (10pi) HL 20W PCDIM +/- 2.5kV passed MOV 10D391K (10pi) NCL30170 EVB report Rev. A MAY

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V ac V ac 20 W Direct AC LED Driver Analog and Phase-cut Dimming Introduction This manual covers the specification, theory of operation, testing and construction of the NCL30170 demonstration board. NCL30170 has