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1 Macroblock MBI LED Small Outline Transistor 1A 3 LED 350mA 12V97% 6~36 Hysteretic PFM 0.3Ω GSB: SOT-89-5L (Start-Up) (OCP) (TP) LED Small Outline Package 5 MBI6655 LED / 5 LED MBI6655 Hysteretic PFM GD: SOP8L MBI6655 DIM (PWM) MBI6655IC (Start-Up) IC (TP) (OCP)LED IC MBI6655SOT-89-5L SOP-8L LED Macroblock, Inc
2 + R V SEN SEN - I OUT + V IN C BP 0.1uF C IN + 10uF/50V VIN DIM MBI6655 GND SEN SW D1 L1 + C OUT 10uF/50V (Optional) V OUT - R SEN : Viking, 0.14Ω, 1206, ±1% SMD Resistor C IN : GOLDENCONNECTIONS, 10uF/50V, 5*11, DIP, electrolytic capacitor C OUT (Optional): GOLDENCONNECTIONS, 10uF/50V, 5*11, DIP, electrolytic capacitor C BP : GOLDENCONNECTIONS, 0.1uF/50V, X5R, 0603 SMD ceramic capacitor L1: GANG SONG, GSDS106C2-680M D1: ZOWIE, SSCD
3 SW 1 5 VIN VIN 1 8 NC GND DIM 2 3 MBI SEN SEN DIM SW 2 3 Thermal Pad NC GND GND MBI6655GSB ( ) MBI6655GD ( ) Pin GND SW DIM SEN VIN Thermal Pad GND* * PCB GND PCB - 3 -
4 IC V IN 0~40 V I OUT 1.2 A SW V SW -0.5~45 V I GND 1.2 A (, Ta=25 C)* P D 3.13 W ()* GD R th(j-a) 40 C/W ** 75.1 C/W (, Ta=25 C)* P D 1.77 W ()* GSB R th(j-a) - C/W ** 70.8 C/W T j, max 125*** C IC ( ) T opr -40~+85 C IC ( ) T stg -55~+150 C * PCB76.2mm*114.3mmJEDEC JESD51 ** PCBIC 4 *** IC IC IC IC (T opr ) 125 C PCB PCB - 4 -
5 V IN =12V V OUT =3.6V L1=68µH C IN= C OUT =10µF T A =25 C V IN V I IN V IN =6V~36V ma I OUT ma di OUT /I OUT 150mA I OUT 1000mA, - ±3 ±5 % SW V SW I OUT =1A V Tpd V IN =12V ns - V IN =12V, I OUT =350mA, V OUT =10.8V % V IH V V IL V R ds(on) V IN =12V; (b) Ω * T ON,min V IN =12V, ns * T OFF,min V IN =12V, ns SW * D sw % Freq Max khz SEN V SEN V IN =12V, V1=1V, (c) mv * T SD C (Hysteresis)* T SD-HYS C * Iocp V IN =36V A DIM DIM PWM Duty DIM PWM : 1KHz % * - 5 -
6 (a) (b) V1 R1 1k V IN VIN DIM SEN + CIN MBI6655 C SEN 10uF/50V GND SW V SEN 220nF (c) 3-6 -
7 : V IN =12V, L1=, C IN =C OUT =10uF, T A =25 C. LED V F =3.6V; V F =7.2V; V F =10.8V; V F =14.4V; V F =18V 1. LED L1= L1= Input voltage L1= Input voltage L1= Input voltage Efficiency vs. input L1= L1= Input voltage L1= Input voltage L1= Input voltage L1= L1= Input voltage L1= Input voltage L1= Input voltage
8 2. vs. vs. L1= 9V IN 12V IN 24V IN 36V IN 9V IN 12V IN 24V IN 36V IN 9V IN 12V IN 24V IN 36V IN L1= L1= L1= vs. L1= 12V IN 24V IN 12V IN 24V IN 12V IN 24V IN 9V IN 36V IN 9V IN 36V IN 9V IN 36V IN L1= L1= L1= vs. L1= 9V IN 12V IN 24V IN 36V IN 9V IN 12VIN 24V IN 36V IN 9V IN 12V IN 24V IN 36V IN L1= L1= L1=
9 3. LED L1= L1= L1= L1= L1= L1= L1= L1= L1= L1= L1= L1=
10 4. 1 LED in Cascaded 22 uh 100 uh 68 uh in Cascaded 100 uh 22 uh 68 uh in Cascaded 22 uh 68 uh 100 uh LED in Cascaded 22 uh 100 uh 68 uh in Cascaded 100 uh 68 uh 22 uh in Cascaded 22 uh 68 uh 100 uh LED in Cascaded 100 uh 22 uh 68 uh in Cascaded 100 uh 68 uh 22 uh in Cascaded 68 uh 22 uh 100 uh
11 5. vs. vs. L1= Vin 12Vin 24Vin L1= 36Vin Vin 12Vin 24Vin L1= 36Vin Vin 12Vin 24Vin L1= 36Vin vs. L1= Vin 12Vin 24Vin L1= 36Vin Vin 12Vin L1= 24Vin 36Vin Vin 12Vin L1= 24Vin 36Vin Fig. 43 Fig. 44 Fig. 45 vs. L1= Vin 12Vin L1= 24Vin 36Vin Vin 12Vin 24Vin L1= 36Vin Vin 12Vin L1= 24Vin 36Vin
12 6. vs. vs. V IN =12V Vin=12V Vin=12V Vin=12V LED number vs. V IN =24V Vin=24V Vin=24V Vin=24V LED number vs. V IN =36V Vin=36V Vin=36V Vin=36V 940 LED number
13 7. vs. vs. V IN =12V Switching Frequency (KHz) Vin=12V Switching Frequency (KHz) Vin=12V Switching Frequency (KHz) Vin=12V vs. V IN =24V Switching Frequency (KHz) Vin=24V Switching Frequency (KHz) Vin=24V Switching Frequency (KHz) Vin=24V vs. V IN =36V Switching Frequency (KHz) Vin=36V 1 Switching Frequency (KHz) Vin=36V Switching Frequency (KHz) Vin=36V
14 MBI6655(buck converter)1a MBI6655 Hysteretic PFM IC (load transient response) (I OUT ) (R SEN ) I OUT R SEN V SEN =0.1V; R SEN =(V SEN /I OUT )=(0.1V/I OUT ); I OUT =(V SEN /R SEN )=(0.1V/R SEN ) R SEN SENV SEN (R SEN ) 0.1Ω 1000mA R SEN R S L1 DCR MOSFET R ds(on) LED LED (R S ) LED MBI6655 (equivalent impedance) 67 IC 1.15 IC LED 68 V IN VSW VOUT IOUT 350mA 68. (V IN =12V, V OUT = 10.8, R SEN =0.27Ω) 67 MBI
15 PWM LED MBI6655 DIM PWM PWMLow ( 0.5V) MBI6655 MOSFETLED MBI6655pull-up DIM pull-up 69 70MBI Rsen=0.28 L1= f DIM =1KHz DIM Duty Cycle (%) 24VIN 36VIN Rsen=0.28 L1= f DIM =1KHz DIM Duty Cycle (%) 69 DIM : 1% ~ 69 DIM : 1% ~ 10% 24VIN 36VIN LED MBI6655 LED LED MBI6655 MOSFET LED 0mA 71 V SW V OUT I IN I OUT
16 LED MBI6655LEDLED MOSFETLED 72 V SW V OUT I IN I OUT 72. IC T X (165 C) IC 73 SW 135 C IC VIN VSW VOUT IOUT
17 LED MBI6655LEDICMBI A MBI6655 V IN LED 1.8A I OUT 74. LED
18 SW MBI MBI MBI f SW = = T T (1) OFF,min (1- D) 0.5 S or 1 1 f = = TS TON, min (2) D ( ) / (/ ) () EMI MBI KHz~1.0MHz LED (Ripple Current) LED MBI6655LED LED LED LED LED LED 5% 20%
19 : L1 L1 > (V IN - V OUT - V SEN - (R ds(on) x I OUT )) x f SW D x I R ds(on) MBI6655 MOSFET V IN Ω L D MBI6655 D=V OUT /V IN f SW MBI6655 I L I L =(1.15xI OUT ) (0.85xI OUT )=0.3xI OUT. 1.5 (line/load regulation) EMI (Schottky Diode) MBI6655 (Flywheel Diode) D1 MOSFET Schottky diode Schottky diode Schottky Diode MOSFET C IN MBI6655MOSFET MOSFET uF 1.5 ESR ESR 0.1~1uF (C BP ) VIN LED LED LED
20 PCB PCB 2. IC GND 5mm 3. IC GND 4. MBI IC 6. PCB R SEN IC VIN 7. IC VIN GND 8. R SEN IC VIN SEN 9. SW Schottky diode MOSFET 12. IC, IC 13. IC R SEN LED1 LEDn L1 D1 VIN C IN SW SW --> ON SW --> OFF 75. MBI6655 PCB 76 MBI6655GSB 76.MBI6655GSB
21 (P D ) P D (max) = (T j,max T a ) / R th(j-a) Power Dissipation (W) 4.0 MBI6655 Maximum Power Dissipation at Various Ambient Temperature GSB Type: Rth=70.8 C/W GD Type: Rth=40.0 C/W Safe Operation Area Ambient Temperature ( C)
22 Pb-free & Green * Pb-Free & Green" RoHS (SnPb) (SnPb) JEDEC J-STD-020C JEDEC J-STD-020C 245 o C 260 o C ( ) Temperature ( ) Average ramp-up rate= 0.7 /s 30s max Ramp-down 6 /s (max) s max 100 Peak Temperature 245 ~260 < 10s 50 Average ramp-up rate = 0.4 /s Average ramp-up rate= 3.3 /s Maximum peak temperature Recommended reflow profile JEDEC Acc.J-STD-020C Time (sec) Package Thickness Volume mm 3 <350 Volume mm Volume mm <1.6mm o C o C o C 1.6mm 2.5mm o C o C o C 2.5mm o C o C o C * Pb-free & Green Package
23 MBI6655GSB :
24 MBI6655GD :
25 IC GSB (SOT-89) XXXX Part number ID number XXX GD (SOP8L) MBIXXXX Part number ID number XXXXXXXX G: Green and Pb-free IC V1.00 A (g) MBI6655GSB SOT-89-5L 0.016g MBI6655GD SOP8L g
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2013/08/23 Page1 26 Ver.1.2 2013/08/23 Page2 26 Ver.1.2 2013/08/23 Page3 26 Ver.1.2 -JO8 DIM EN 5 GND GND -FA6 SOT23-6 6 SEN SW VIN 4 DIM 3 2 1 -GG5 VIN SEN GND DIM 5 SW 1 SOT89-5 4 3 2 TO-252 -HE5 VIN
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