4-3W Dimmable LED Driver iW3610 · Intelligent wall dimmer detections Leading-edge dimmer ,...
Transcript of 4-3W Dimmable LED Driver iW3610 · Intelligent wall dimmer detections Leading-edge dimmer ,...
4-3W Dimmable LED DriveriW3610
2iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Design Purpose and FeatureIsolated ac-dc offline 100V / 230V
Intelligent wall dimmer detectionsLeading-edge dimmer , Trailing-edge dimmer , No-dimmer
Multiple dimming control schemeHybrid dimming schemePWM dimming scheme,360Hz or 900HzAmplitude dimming scheme
Wide dimming range from 2% up to 100%
No visible flicker
Resonant control to achieve high efficiency
High Power Factor, 0.8-0.9 without dimmer
Temperature degrade control to adjust the LED
Primary-only Sensing eliminates opto-isolator feedback and simplifies design
3iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Schematics _Input 230Vac
4iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
BOM __Input 230Vac Item Qty. Ref. Description Cost (US Cent) / unit Sub-Total (Cent)
1 1 U1 iW3610, Digital PWM Controller,Dimmable, SO-82 1 C1 0.022uF,275V, X23 1 C2 0.01uF, 400V, MPP4 1 C3 6.8uF, 400V, E-CAP, 105'C5 1 C4 2.2nF, 250V, X7R, SMD12066 1 C5 Open7 1 C6 22pF, 16V, X7R, SMD 06038 1 C7 2.2nF,16V, X7R, SMD 06039 1 C8 47uF, 25V, E-CAP, 5X11mm 10 1 C9 22uF 25V,Tan-cap11 2 R1, R2 4.7KΩ ±5﹪, SMD-080512 2 R3,R4 330KΩ,±5﹪, SMD-120613 1 R5 390Ω,±5﹪, 2W14 2 R6, R7 100Ω±5﹪, SMD-120615 1 R8 22KΩ±5﹪, SMD-060316 1 R9 10Ω±5﹪, SMD-060317 2 R10,R11 330KΩ,±5﹪, SMD-120618 1 R12 220KΩ,±5﹪, SMD-120619 1 R13 220Ω±5﹪, SMD-080520 1 R15 5.1Ω ±1﹪, SMD-080521 1 R16 10Ω ±5﹪, SMD-060322 1 R18 4.7Ω ±5﹪, SMD-080523 1 R19 24KΩ ±1﹪, SMD-080524 1 R20 2.4KΩ ±5﹪, SMD-060325 1 R21 22KΩ ±5﹪, SMD-080526 1 NTC 47K SMD-0805, TSM2A47327 1 BR1 MB8S, SMD28 3 D1 D2 D3 UF4007,DO-4129 1 D4 FR07,DO-4130 2 D5 D6 1N4148 0.1A/100V, LL-3431 1 D7 SB2100, 2A 100V, Schottky32 1 Z1 Zener, 15V, LL-3433 1 FR1 10R,1W, FUSE Resistor34 1 Q1 2N60, TO-25135 1 Q2 1N60, TO-9236 1 Q3 F501, N-Depletion, 500V, SOT-2337 2 L1 L2 4.7mH, Drum choke, 6X8mm, 38 1 L3 4mH, EE10, 39 1 T1 EE13, Transformer
5iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
PCB and Layout
51mm
25mm
iW3610
AC Input
DC output
To LED
6iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
MATERIALS:1. Core : EE13 (Ferrite Material TDK PC40 or
equivalent)2. Bobbin : EE13 Vertical 3. Magnet Wires : Type 2-UEW 4. Layer Insulation Tape :3M1298 or equivalent.
SCHEMATICA
144T
28T
ELECTRICAL SPECIFICATIONS:1. Primary Inductance (Lp) = 2.4 mH @10KHz2. Primary Leakage Inductance (Lk)≤30uH@10KHz
1
2
4
5
Primary
Bias
Secondary 28 Turns
Transformer Design ___Input 230Vac
A(S)
Copper Shield 7(W)X28(L)
Bottom
B(F)
PRI SEC
FINISHED :1. Cut remained of Pin 3 6 7 8 9 10 after wires termination2. Varnish the complete assembly
0.3mm 14T –SecondaryTriple Insulation wire
5(F)
Winding Direction
2UEW 0.13mmx1 48T – Primary
2UEW 0.13mmx1 48T – Primary
3(F)
4(S)2UEW 0.11mmx2 28T –Bias
2(S)
1(F)
2UEW 0.13mmx1 48T – Primary
0.3mm 14T –SecondaryTriple Insulation wire
3(S)
1(F)
3
7iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
EMI Inductor L1,L2
Ferrite core size : AxB 6x8mm
Inductance @10kHz, 1V: 4.7mH +/-20%
DCR: 10 OHM +/-20%
L3 SCHEMATIC
0.17*1*300 Ts
ELECTRICAL SPECIFICATIONS:1. Inductance (Lp) = 4 mH @10KHz2. Core : EE10 (Ferrite Material TDK PC40 or equivalent)3. Bobbin : EE10 Vertical4. Ferrite core is connected to Pin 10 after assembling5. Cut remained of Pin2,3,6,7,8,9,10 after wires termination6. Varnish the complete assembly
1
4
PFC choke and EMI Inductor__ For input 230Vac
5
Coil contact ferrite core and soldered to Ground pin
Ground pin
8iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Constant Current and Efficiency __No Dimmer
Vin Pin Vout Iout Ripple
(V) (W) (V) (A) (m A)
185 5.63 12.34 0.345 72 75.62% 56% 0.70
230 5.71 12.35 0.355 72 76.78% 52% 0.84
264 5.99 12.36 0.363 70 74.90% 65% 0.83
185 4.13 9.29 0.349 73 78.50% 55% 0.70
230 4.52 9.31 0.359 75 73.90% 58% 0.87
264 4.76 9.35 0.367 76 72.09% 68% 0.883LEDs
4LEDs
# of LEDs
efficiency PF3rd Harmonic
Vin 185-264Vac,without dimmer
Output: 3-4 LEDs
9iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Constant Current and Efficiency_ with dimmer
Vin DIM Level Pin LED
VoltageLED
current Pout Eff ripple current DIM mode PF
(V) (W) (V) (mA) (W) (%) ( mA)
Max. 6.86 12.48 340 4.24 61.9% 65 Amp.
3.27 11.84 171 2.02 61.9% 22 Amp.
Min. 0.58 10.27 3 0.03 5.3% 18 Amp.&PWM
Max. 6.65 12.48 350 4.37 65.7% 64 Amp.
3.61 11.87 184 2.18 60.5% 25 Amp.
Min. 0.86 10.59 14 0.15 17.3% 48 Amp.&PWM
Max. 6.56 12.50 356 4.45 67.8% 66 Amp.
3.58 11.82 175 2.07 57.8% 22 Amp.
Min. 1.86 11.17 74 0.83 44.3% 126 Amp.&PWM
185
230
264
Leading edge dimmer
_Panasonic 300W
_4 LEDs
Leading edge dimmer
__ TCL
__ 4 LEDs
Vin DIM Level Pin LED
VoltageLED
current Pout Eff ripple current DIM mode PF
(V) (W) (V) (mA) (W) (%) ( mA)
Max. 7.07 12.46 340 4.24 59.9% 65 Amp.
3.33 11.84 178 2.11 63.3% 22 Amp.
Min. 0.88 10.35 10 0.10 11.8% 16 Amp.&PWM
Max. 6.63 12.53 350 4.39 66.1% 68 Amp.
3.61 11.90 178 2.12 58.7% 25 Amp.
Min. 0.96 10.73 19 0.20 21.3% 58 Amp.&PWM
Max. 6.43 12.54 357 4.48 69.6% 66 Amp.
3.83 11.81 180 2.13 55.5% 25 Amp.
Min. 2.58 11.47 125 1.43 55.6% 148 Amp.&PWM
185
230
264
10iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Constant Current and Efficiency_ with dimmer
Trailing edge dimmer
__ Niko 250W
__4 LEDs
Leading edge dimmer
__ Clipsal 32E450TM
__4 LEDs
Vin DIM Level Pin LED
VoltageLED
current Pout Eff ripple current DIM mode PF
(V) (W) (V) (mA) (W) (%) ( mA)
Max. 4.59 12.08 230 2.78 60.5% 60 Amp.
3.57 11.73 152 1.78 49.9% 22 Amp.
Min. 1.32 10.80 32 0.35 26.2% 64 Amp.&PWM
Max. 5.59 12.31 286 3.52 63.0% 62 Amp.
4.15 11.87 176 2.09 50.3% 25 Amp.
Min. 2.32 11.25 79 0.89 38.3% 84 Amp.&PWM
Max. 6.46 12.46 331 4.12 63.8% 68 Amp.
4.08 11.80 162 1.91 46.9% 20 Amp.
Min. 3.24 11.55 122 1.41 43.5% 128 Amp.&PWM
185
230
264
Vin DIM Level Pin LED
VoltageLED
current Pout Eff ripple current DIM mode PF
(V) (W) (V) (mA) (W) (%) ( mA)
Max. 5.47 12.37 290 3.59 65.6% 60 Amp.
3.75 11.80 155 1.83 48.8% 22 Amp.
Min. 0.95 10.51 11 0.12 12.1% 36 Amp.&PWM
Max. 6.66 12.60 355 4.47 67.2% 63 Amp.
4.30 11.93 182 2.17 50.5% 25 Amp.
Min. 1.66 10.98 45 0.49 29.8% 84 Amp.&PWM
Max. 6.95 12.60 363 4.57 65.8% 66 Amp.
3.99 11.82 166 1.96 49.2% 22 Amp.
Min. 2.38 11.20 84 0.94 39.5% 124 Amp.&PWM
185
230
264
11iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Waveform @ 230Vac and rated LED load
Blue: Input waveform after bridge rectifier_Min.levelGreen: Output Current
Blue: Input waveform after bridge rectifier_Max.levelGreen: Output Current
Blue: Input waveform after bridge _Min.levelGreen: Output Current
Output current waveform
Blue: Input waveform after bridge _Max.levelGreen: Output Current
Input waveform after bridge rectifier
Trailing edge dimmerLeading edge dimmerNo- dimmer
12iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Harmonic and AC current waveform_ No dimmer
Harmonics current @230Vac
Meet IEC61000-3-2 requirement
Ac current waveform @230Vac
PF=0.86
13iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Dimming curve__ Iout Vs Dimmer’s Scale
0 2 4 6 8 10 12
Dimmer graduation
LED Current (mA)
Clipsal
Niko
Iout
Input 230Vac, dimming with Niko and Clipsal dimmer
Measure the output current, Maximum is 348mA
350mA
50
100
150
200
250
300
14iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
OTP_ Temperature degrade curve_TSM2A473(47K)
Iout0
100
200
300
400
500
0.20.30.40.50.60.70.8V_vt (V)
Iout(mA)
0
2
4
6
8
10
12
NTC(Kohm)
100 Voltage on Vt pin
Constant current at low temperature
Temperature degrade range
Thermal shut down
15iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Key components specification
16iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
Schematics _Input 120Vac
17iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
BOM __Input 120VacItem Qty. Ref. Description Cost (US Cent) / unit Sub-Total (Cent)
1 1 U1 iW3610, Digital PWM Controller,Dimmable, SO-82 1 C1 0.022uF,275V, X23 1 C2 0.01uF, 400V, MPP4 1 C3 10uF, 200V, E-CAP, 105'C5 1 C4 2.2nF, 250V, X7R, SMD12066 1 C5 Open7 1 C6 22pF, 16V, X7R, SMD 06038 1 C7 2.2nF,16V, X7R, SMD 06039 1 C8 47uF, 25V, E-CAP, 5X11mm 10 1 C9 22uF 25V,Tan-cap11 2 R1, R2 4.7KΩ ±5﹪, SMD-080512 2 R3,R4 120KΩ,±5﹪, SMD-120613 1 R5 390Ω,±5﹪, 2W14 2 R6, R7 100Ω±5﹪, SMD-120615 1 R8 22KΩ±5﹪, SMD-060316 1 R9 10Ω±5﹪, SMD-060317 2 R10,R11 100KΩ,±5﹪, SMD-120618 1 R12 220KΩ,±5﹪, SMD-120619 1 R13 220Ω±5﹪, SMD-080520 1 R15 5.1Ω ±1﹪, SMD-080521 1 R16 10Ω ±5﹪, SMD-060322 1 R18 4.7Ω ±5﹪, SMD-080523 1 R19 24KΩ ±1﹪, SMD-080524 1 R20 2.4KΩ ±5﹪, SMD-060325 1 R21 22KΩ ±5﹪, SMD-080526 1 NTC 47K SMD-0805, TSM2A47327 1 BR1 MB8S, SMD28 3 D1 D2 D3 UF4007,DO-4129 1 D4 FR07,DO-4130 2 D5 D6 1N4148 0.1A/100V, LL-3431 1 D7 SB2100, 2A 100V, Schottky32 1 Z1 Zener, 15V, LL-3433 1 FR1 10R,1W, FUSE Resistor34 1 Q1 2N60, TO-25135 1 Q2 1N60, TO-9236 1 Q3 F501, N-Depletion, 500V, SOT-2337 2 L1 L2 4.7mH, Drum choke, 6X8mm, 38 1 L3 4mH, EE10, 39 1 T1 EE13, Transformer
18iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
MATERIALS:1. Core : EE13 (Ferrite Material TDK PC40 or
equivalent)2. Bobbin : EE13 Vertical 3. Magnet Wires : Type 2-UEW 4. Layer Insulation Tape :3M1298 or equivalent.
SCHEMATICA
144T
28T
ELECTRICAL SPECIFICATIONS:1. Primary Inductance (Lp) =1.5 mH @10KHz2. Primary Leakage Inductance (Lk)≤30uH@10KHz
1
2
4
5
Primary
Bias
Secondary 28 Turns
Transformer Design ___Input 120Vac
A(S)
Copper Shield 7(W)X28(L)
Bottom
B(F)
PRI SEC
FINISHED :1. Cut remained of Pin 3 6 7 8 9 10 after wires termination2. Varnish the complete assembly
0.3mm 14T –SecondaryTriple Insulation wire
5(F)
Winding Direction
2UEW 0.13mmx1 48T – Primary
2UEW 0.13mmx1 48T – Primary
3(F)
4(S)2UEW 0.11mmx2 28T –Bias
2(S)
1(F)
2UEW 0.13mmx1 48T – Primary
0.3mm 14T –SecondaryTriple Insulation wire
3(S)
1(F)
3
19iWatt Confidential – Do Not CopyDimmable LED Driver 19 Jul 2009 Page:
EMI Inductor L1,L2
Ferrite core size : AxB 6x8mm
Inductance @10kHz, 1V: 4.7mH +/-20%
DCR: 10 OHM +/-20%
L3 SCHEMATIC
0.17*1*200 Ts
ELECTRICAL SPECIFICATIONS:1. Inductance (Lp) = 1 mH @10KHz2. Core : EE10 (Ferrite Material TDK PC40 or equivalent)3. Bobbin : EE10 Vertical4. Ferrite core is connected to Pin 10 after assembling5. Cut remained of Pin2,3,6,7,8,9,10 after wires termination6. Varnish the complete assembly
1
4
PFC choke and EMI Inductor__ For input 230Vac
5
Coil contact ferrite core and soldered to Ground pin
Ground pin