AP1695EV1 User Guide 120VAC Dimmable LED Driver General Description This demonstration board utilizes the AP1695 Buck LED driver providing a cost effective triac dimmable solution for offline high brightness LED applications. This userfriendly evaluation board provides users with quick connection to their different types of LEDs string. The demonstration board can be modified easily to adjust the LED output current and the number of series connected LEDs that are driven. A BOM, schematic and layout are included that describes the parts used on this demonstration board, along with measured performance characteristics. These materials can be used as a reference design. Specifications Parameter Value AC Input Voltage Output Power LED Current LED Voltage Power Factor Efficiency XYZ Dimension ROHS Compliance 108V-132V 4.05W 135mA 30V >0.85 83% 30x16x15mm Yes Evaluation Board Key Features Triac Dimmable Active PFC with power factor >0.85 High efficiency >83% THD<30% Figure 1: Top View Applications Retrofit Candle,GU10 lamps Figure 2: Bottom View Connection Instructions: AC-L Input: White – Hot AC-N Input: White – Neutral DC LED+ Output: LED+ (Red) DC LED- Output: LED- (Black) AP1695EV1 Rev1 February 2015 www.diodes.com Page 1 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Board Layouts Figure 3: PCB Layout Top View Figure 4: PCB Layout Bottom View Quick Start Guide 1. 2. 3. 4. 5. 6. Preset the isolated AC source to 120Vac. Ensure that the AC source is switched OFF or disconnected. Connect the anode wire of the LED string to the LED+ terminal of the evaluation board. Connect the cathode wire of the LED string to the LED- terminal of the evaluation board. Connect two AC line wires to the AC-L and AC-N terminals on the evaluation board. Ensure that the area around the board is clear and safe, and preferably that the board and LEDs are enclosed in a transparent safety cover. 7. Turn on the main switch. LED string should light up with LED. DO NOT TOUCH THE BOARD, LEDs OR BARE WIRING. Caution: All terminals carry high voltage during operation! AP1695EV1 Rev1 February 2015 www.diodes.com Page 2 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver 1 D 4.7mH 1 + 4 2 K 2 K 0 1 R 0 3 EE10 1 6 2 C N 4 7 D N K 5 8 K 1 Drain D N 1 2 D N G AP1695 IC1 3.9R S C B F 5 D N G R10 1.5K 9 R 3.3R S I R 3 R11 K 0 3 5 R G 1 8 4 VCC R 6 C C V 7 G D N G R BAV21W 4.7uF/50V C 4.7mH 2 L 1 R 0 1 R 3 C T 1 D V 0 2 5.1K 0 R 3 5 Figure 5: Schematic Circuit Transformer Design Bobbin and Core EE10 Vertical 4+4 pin Transformer Parameters 1. Primary Inductance (Pin 5-Pin 7, all other windings open)：Lp=1.0mH, ±5%@1kHz 2. Primary Winding Turns (Pin 5-Pin 7): NP=157Ts 3. Auxiliary Winding Turns (Pin 1-Pin 2): NP=105Ts Transformer Winding Construction Diagram Item 1 Winding name WD1-Primary Winding 2 3 Insulation WD2-Auxiliary Winding 4 AP1695EV1 Rev1 February 2015 www.diodes.com Insulation Description Start at Pin5, Wind 157 turns of Φ0.19mm wire and finish on Pin7. 2 Layers of insulation tape Start at Pin 1, Wind 105 turns of Φ0.13mm wire and finish on Pin2. 3 Layers of insulation tape Page 3 of 11 - V 7 3 D 2 R APT17 Q 150uF/50V F n 0 2 2 F n 0 3 3 3 5 C ES1J N R12 + K 0 0 1 C 3 3 C 3 D 3 R R 5.1K 1 R V 2 4 L 1A/600V B 1 68R/1W L RF1 Schematic AP1695EV1 User Guide 120VAC Dimmable LED Driver Bill of Material # Item Quantity Package 1 C1 1 DIP 330nF/250V,CL21,D= 7.5mm 2 C2 1 DIP 220nF/250V,CL21,D=7.5mm 3 C3 1 1206 Ceramic Cap,4.7uF/50V,X7R 4 C4 0 1206 NC 5 C5 1 DIP E-Cap,105℃,150uF/50V,8*13mm 6 D1 1 SOD-123 BAV21W,200mA/250V,Diodes Inc 7 D2 1 SMA 8 D3 1 SOD-123 9 1 MiniDIP 10 BD1 RF1 1 DIP Fuse Resistor,68R,5%,1W 11 R0,R1 2 0805 Resistor,5.1K, 5%,1/8W 12 R2 1 2512 Resistor,330R,5%,1W 13 R3 1 1206 Resistor,300K, 5%,1/4W 14 R4 1 1206 Resistor,3K, 5%,1/4W 15 R5 1 0805 Resistor,30K, 5%,1/8W 16 R6 1 0805 Resistor,10R, 5%,1/8W 17 R7 1 0805 Resistor,75K, 5%,1/8W 18 R8 R9 1 0805 0805 Resistor,11K, 5%,1/8W Resistor,1.5K, 5%,1/8W 1 21 R10 R11 1 0805 0805 Resistor,3.9R, 1%,1/8W Resistor,3.3R, 1%,1/8W 22 R12 1 0805 Resistor,30K, 5%,1/8W 23 U1 1 SOIC-7 AP1695, Diodes IC 24 Q1 SOT-23 HV BJT,APT17,50mA/700V,Diodes Inc 25 26 L1,L2 T1 1 2 27 PCB 19 20 AP1695EV1 Rev1 February 2015 www.diodes.com 1 1 1 DIP DIP Description ES1J,1A/600V Zener, DDZ9707, 20V/0.5W,Diodes Inc Rectifier Bridge,HD06,0.8A/600V,Diodes Inc Inductor,4.7mH,0510 EE10 Vertical 4+4Pin 1.0mH FR4 double layer,30mm*16mm Page 4 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Functional Performance Efficiency vs Input Voltage 85.0 ILED vs Input Voltage 140 139 84.5 138 84.0 137 83.5 136 ILED (mA) Efficiency (%) 135 83.0 82.5 82.0 Vo=27V Vo=30V Vo=33V 81.5 134 133 132 131 Vo=27V Vo=30V Vo=33V 130 129 81.0 128 80.5 80.0 105 127 110 115 120 125 130 126 105 135 110 115 Vo=27V Vo=30V Vo=33V 0.94 0.93 135 130 135 Vo=27V Vo=30V Vo=33V 32 31 30 0.92 29 THD (%) 0.91 PF 130 34 33 0.95 0.90 0.89 0.88 28 27 26 25 0.87 24 0.86 23 0.85 22 0.84 105 125 THD vs Input Voltage PF vs Input Voltage 0.96 120 Vin-ac (V) Vin-ac (V) 110 115 120 Vin-ac (V) AP1695EV1 Rev1 February 2015 www.diodes.com 125 130 135 21 105 110 115 120 125 Vin-ac (V) Page 5 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Dimming Test Dimmer compatibility and dimming range Io(mA) Min Max Dimmer Type Dimming percentage(%) Min Max Flicker or not? LUTRON S-600P 2.87 112.67 1.60 62.94 No LUTRON LISTED6B38 11.75 108.29 6.56 60.50 No LUTRON TG-103P 11.75 103.53 6.56 57.84 No LEVITON 1F30I1 0.00 133.41 0 74.53 No LUTRON TGCL-153P 7.01 110.31 3.92 61.63 No COOPER Cat.No.9539 11.01 99.77 6.15 55.74 No LUTRON TG-10P 10.00 106.20 5.59 59.33 No LEVITON Cat NO.6674 8.41 116.11 4.70 64.87 No LEVITON Cat NO.TGI06 8.49 109.98 4.74 61.44 No LUTRON D600F 0.34 107.40 0.19 60.00 No LEVITON 1L10O5 0.00 117.92 0 65.88 No LEVITON 1I33I1 0.00 133.19 0 74.41 No LEVITON Cat NO.6613-P 5.80 127.68 3.24 71.33 No LUTRON DV-603P 4.64 112.37 2.59 62.78 LUTRON CT-603PG 5.06 88.09 2.83 49.21 No No 140 120 LEVITON 1I33I1 100 ILED(mA) 80 60 40 20 0 -20 0 20 40 60 80 100 120 140 160 Conduction Angel(deg) AP1695EV1 Rev1 February 2015 www.diodes.com Page 6 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Functional Waveform Input Voltage & Input Current (Vin=120V/60Hz) LED Current Ripple (Vin=120VAC/60Hz Ripple=89mA) IC VDRAIN Waveform (Vin=132VAC/60Hz, VDRAIN=208V) Output Diode VR Waveform (Vin=132VAC/60Hz, VR=205.5V) AP1695EV1 Rev1 February 2015 www.diodes.com Page 7 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Input AC Current vs Dimmer Phase (Vin=120VAC/60Hz,Conduction angle 155deg) Input AC Current vs Dimmer Phase (Vin=120VAC/60Hz,Conduction angle 30deg) Start-up time (Vin=108VAC/60Hz,Start-up time=51.9ms) LED Open Protection(Vin=120VAC/60Hz) Y-VCC, R-VDRAIN, B-Vout, G-ILED AP1695EV1 Rev1 February 2015 www.diodes.com Page 8 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver Thermal Test Top (Vin=120VAC,Burn-in time=30min) Bottom (Vin=120VAC, Burn-in time=30min) EMI Conduction Test Line Terminal (Vin=120VAC, Margin>6dB) AP1695EV1 Rev1 February 2015 www.diodes.com Neutral Terminal (Vin=120VAC, Margin>6dB) Page 9 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver AP1695EV1 Rev1 February 2015 www.diodes.com Page 10 of 11 AP1695EV1 User Guide 120VAC Dimmable LED Driver IMPORTANT NOTICE DIODE INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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