Macroblock 6~36 1A - (PWM) - (PWM) 1,024 3 LED 350mA12V 97% Hysteretic PFM 0.3Ω (UVLO)(Start-Up)(OCP) (TP) LED 6 PCB Mini Small Outline Package GMS : MSOP-8L-118mil Small Outline Package GD: SOP8L-150-1.27 LED / 6 LED Hysteretic PFM (PWM) (PWM)(DC voltage controlled) 5 ~ %. IC (Start-Up) IC (UVLO) (TP)(OCP) LED IC MSOP-8L SOP-8L LED Macroblock, Inc. 2011 Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 77, ROC. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock.com.tw - 1 -
C IN : 10uF/50V, VISHAY, 293D106X9050D2TE3, D case Tantalum Capacitor. C OUT (Optional): 10uF/50V, VISHAY, 293D106X9050D2TE3, D case Tantalum Capacitor. C BP : 0.1uF/50V. 0603 / X7R / SMD ceramic capacitor, Gildenconnections. C ADJ : 0.1uF/50V. 0603 / X7R / SMD ceramic capacitor, Gildenconnections. R SEN : 0.14Ω ± 1%, 1206 SMD Resistor, VIKING L1: GANG SONG, GSDS106C2-680M. D1: ZOWIE, SSCD206. 1 VIN SEN SW Bandgap VREF Regulator VDD UVLO UVLO TSD TSD - + PWMA 200K 1.65V K 50K + - TSD UVLO DIMD ADJ PWMD VDD k DIMD 1.5V - + 2 OCP GND - 2 -
VIN 1 8 PWMA VIN 1 8 PWMA SEN 2 7 ADJ SEN 2 7 ADJ PWMD 3 Thermal Pad 6 GND PWMD 3 Thermal Pad 6 GND SW 4 5 GND SW 4 5 GND GMS (Top View) GD (Top View) Pin GND SW PWMD PWMA ADJ SEN VIN Thermal Pad. (PWMA)(PWM) (PWMA) (PWMA) GND* * PCB GND PCB - 3 -
IC V IN 0~40 V I OUT 1.2 A SW V SW -0.5~40 V I GND 1.2 A (, Ta=25 C)* ()* (, Ta=25 C)* GMS GD P D 3.62 W R th(j-a) 34.53 C/W P D 3.13 W R th(j-a) 40 C/W T j, max 150** C IC T opr -40~+85 C IC T stg -55~+150 C *PCB76.2mm*114.3mmJEDEC JESD51 **IC IC IC 125 C PCB PCB - 4 -
V IN =12V V OUT =3.6V L1=68µH C IN= C OUT =10µF T A =25 C V IN - 6-36 V I IN V IN =6V~36V - 2 4 ma V SU 5.5 5.7 5.9 V V UVLO 4.3 4.5 4.7 V SEN V SENSE 95 105 mv SEN V SENSE,HYS - 15 - % Tpd 200 320 ns MOS R ds(on) V IN =12V; (b) 0.2 0.3 0.4 Ω * T ON,min - 200 - ns * T OFF,min - 200 - ns SW * D sw 20-80 % Freq Max 40-0 khz * T SD - 145 165 175 C (Hysteresis)* T SD-HYS - 20 30 40 C PWMD PWMD V IH - 2.2-5.5 V V IL - - - 0.5 V PWMD PWM Duty PWMD PWMD : 1KHz, % 1 - (a) R PWMD k Ω ( PWMA, ADJ) PWMA V IH - 1.25-5.5 V V IL - - - 0.4 V PWMA PWM Duty PWMA PWMA : 1KHz, % 10 - R PWMA - K - Ω V ADJ.CLAMP : ADJ - 1.5 - V V ADJ SWOFF : ADJ - 0.2 - V * - - 1.8 - A * - 5 -
(a) (b) (c) - 6 -
V IN =6V~40V,, C IN =C OUT, T A =25 C, 1-LED V F =3.6V; 2-LED V F =7.2V; 3-LED V F =10.8; 4-LED V F =14.4V, 5-LED V F =18V, 6-LED V F =21.6V vs. @ LED Efficiency(%) 95 90 85 80 75 70 65 60 RSEN=0.1 0 10 20 30 40 50 1-LED 2-LEDs 3-LEDs 4-LEDs Efficiency(%) 95 90 85 80 75 70 R SEN=0.14 65 60 0 10 20 30 40 50 1-LED 2-LEDs 3-LEDs 4-LEDs 5-LEDs 6-LEDs Efficiency(%) R SEN=0.28 1-LED 2-LEDs 3-LEDs 4-LEDs 5-LEDs 6-LEDs I OUT =1A I OUT =700mA I OUT =350mA Fig. 3 Fig. 4 Fig. 5 vs. LED @ 95 95 95 Efficiency(%) 90 85 80 75 70 65 60 R SEN=0.1 1 2 3 4 5 6 7 VIN=40V Efficiency(%) 90 85 80 75 70 65 60 R SEN=0.14 1 2 3 4 5 6 7 VIN=40V Efficiency(%) 90 85 80 75 70 RSEN=0.28 65 60 1 2 3 4 5 6 7 VIN=40V I OUT =1A I OUT =700mA I OUT =350mA Fig. 6 Fig. 7 Fig. 8 vs. @ LED 0 720 390 990 980 970 960 950 940 930 920 0 10 20 30 40 50 R SEN=0.1 1-LED 2-LEDs 3-LEDs 4-LEDs 715 710 705 700 695 690 685 680 675 670 0 10 20 30 40 50 R SEN=0.14 1-LED 2-LEDs 3-LEDs 4-LEDs 5-LEDs 6-LEDs 380 370 360 350 340 330 320 310 0 10 20 30 40 50 60 70 RSEN=0.28 1-LED 2-LEDs 3-LEDs 4-LEDs 5-LEDs 6-LEDs I OUT =1A I OUT =700mA I OUT =350mA Fig. 9 Fig. 10 Fig. 11-7 -
vs. LED @ 1020 760 1010 0 740 390 380 990 980 970 960 950 940 930 920 RSEN=0.1 1 2 3 4 5 6 7 VIN=40V 720 700 680 660 640 620 RSEN=0.14 1 2 3 4 5 6 7 VIN=40V 370 360 350 340 330 320 310 RSEN=0.28 1 2 3 4 5 6 7 VIN=40V I OUT =1A I OUT =700mA I OUT =350mA Fig. 12 Fig. 13 Fig. 14 vs. @ 1 LED 1060 800 440 1040 1020 0 980 960 940 920 900 880 RSEN=0.1 1-LED in Cascaded 6 12 24 36 40 uh Output Current(m A) 780 760 740 720 700 680 660 640 620 600 R SEN=0.14 1-LED in Cascaded 6 12 24 36 40 uh 420 380 360 340 320 R SEN=0.28 1-LED in Cascaded 6 12 24 36 40 uh I OUT =1A I OUT =700mA I OUT =350mA Fig. 15 Fig. 16 Fig. 17 2 LED 990 780 500 980 760 450 Outputcurrent(m A) 970 960 950 940 930 R SEN=0.1 2-LED in Cascaded uh 740 720 700 680 660 640 R SEN=0.14 2-LED in Cascaded uh Output Curretn(mA) 350 250 R SEN=0.28 2-LED in Cascaded uh 920 12 24 36 40 620 12 24 36 40 200 12 24 36 40 I OUT =1A I OUT =700mA I OUT =350mA Fig. 18 Fig. 19 Fig. 20 3 LED 990 710 450 985 705 980 975 970 965 960 955 950 R SEN=0.1 3-LED in Cascaded 24 36 40 uh 700 695 690 685 680 675 670 R SEN=0.14 3-LED in Cascaded 24 36 40 uh Output current(ma) 350 250 200 RSEN=0.28 3-LED in Cascaded 12 24 36 40 uh Input voltage(v) I OUT =1A I OUT =700mA I OUT =350mA Fig. 21 Fig. 22 Fig. 23-8 -
vs. LED @ 1020 0 980 960 940 920 R SEN=0.1 1 2 3 uh 800 780 760 740 720 700 680 660 640 R SEN=0.14 uh 1 2 3 390 380 370 360 350 340 330 320 310 RSEN=0.28 uh 1 2 3 I OUT =1A I OUT =700mA I OUT =350mA Fig. 24 Fig. 25 Fig. 26 1020 0 980 960 940 920 RSEN=0.1 1 2 3 4 5 6 uh 800 780 760 740 720 700 680 660 640 RSEN=0.14 1 2 3 4 5 6 uh 460 440 420 380 360 340 320 RSEN=0.28 1 2 3 4 5 6 I OUT =1A I OUT =700mA I OUT =350mA Fig. 27 Fig. 28 Fig. 29 uh 1020 0 980 960 940 RSEN=0.1 920 1 2 3 4 5 6 uh 800 780 760 740 720 700 680 660 640 RSEN=0.14 1 2 3 4 5 6 uh 460 440 420 380 360 340 320 RSEN=0.28 1 2 3 4 5 6 uh I OUT =1A I OUT =700mA I OUT =350mA Fig. 30 Fig. 31 Fig. 32 VIN=40V RSEN=0.1 Vin=40V 1 2 3 4 5 6 uh 800 780 760 740 720 700 680 660 640 RSEN=0.14 VIN=40V 1 2 3 4 5 6 uh 460 440 420 380 360 340 320 RSEN=0.28 VIN=40V 1 2 3 4 5 6 uh I OUT =1A I OUT =700mA I OUT =350mA Fig. 33 Fig. 34 Fig. 35-9 -
(buck converter) 1 Hysteretic PFM IC (load transient response) LED ±5% (PWMD) LED. (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 0mA R SEN R S L1 DCR MOSFET R ds(on) LED LED (R S ) LED (equivalent impedance) 36 IC 1.15 IC LED 37 V IN V SW V OUT I OUT 37 V IN =12V, V OUT = 3.2V, R SEN =0.28Ω. 36-10 -
A. (PWMD) LED (PWM)PWMD PWMD = L ( 0.5V)MOSFET LED PWMD 38 (PWM) (a) PWMD (PWM) Output Current (ma) 1200 0 800 600 200 Output Current (ma) 20 18 16 14 12 10 8 6 4 2 0 0 200 600 800 0 1200 Steps 0 0 5 10 15 20 Steps (a) 0~1024 (b) 0~20 38 (PWM) @ 24 V IN, 5-LED, L=68µH - 11 -
B. EMI (SNR : Signal-to-Noise Rejection Ratio) 1 PWMA(PWM) PWMA(PWM) LEDPWMDLED LED(PWM) PWMA C ADJ ADJ ( 1uF / 0805 ) (PWM) PWMA V SEN (a) PWMA(PWM) Output C urrent(m A ) 60 50 40 30 20 10 0 11 12 13 14 15 16 17 18 19 20 Duty(%) 350 250 200 150 50 0 20 30 40 50 60 70 80 90 Duty(%) (b)350ma@3-led, Duty (11%~20%) (c)350ma@3-led, Duty (20%~%) - 12 -
Output current(ma) 120 80 60 40 20 0 11 12 13 14 15 16 17 18 19 20 Duty(%) (d)700 ma@1-led, Duty(11%~20%) Output C urrent(ma ) 800 700 600 500 200 0 20 30 40 50 60 70 80 90 Duty(%) (e)700 ma@1-led, Duty(20%~%) 39 PWMA (PWM) 1 ADJ ADJ LED C ADJ ( ): C ADJ V DC (a) ADJ 80 70 60 50 40 30 20 10 0 0.2 0.25 0.3 0.35 0.4 Analog voltage(v) (b)350ma@3-led, Analog voltage(0.2v~0.4v) 350 250 200 150 50 0 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 Analog voltage(v) (c)350ma@3-led,analog voltage(0.4v~1.5v) - 13 -
140 120 800 700 Output C urrent(m A ) 80 60 40 20 0 VIN=36 0.2 0.25 0.3 0.35 0.4 Analog voltage(v) 600 500 200 0 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 Analog voltage(v) (d) 700 ma@1-led, Analog voltage(0.2v~0.4v) (e)700 ma@1-led, Analog voltage(0.4v~1.5v) 40 ADJ DC LED LED LED MOSFET LED 0mA 41 V SW LED V OUT I OUT 41 LED LED LED LEDMOSFET LED 42 V SW LED I OUT V IN V OUT 42-14 -
LED LEDIC 1.8A V IN LED 1.8A. I OUT 43 LED IC T X (165 C) IC 44 SW 135 C IC V IN V SW I OUT V OUT 44-15 -
SW 0.5 0.5 1 1 f SW = = T T (1) OFF, min (1- D) 0.5 S or 1 1 f SW = = T T (2) S ON, min D ()/ ( / ) () EMI MBI6654 40KHz~1.0MHz LED (Ripple Current) LED LEDLED LED LEDLED LED 5% 20% L1 L1 > (V IN - V OUT - V SEN - (R ds(on) x I OUT )) x f SW D x I R ds(on) MOSFET V IN 12 0.3Ω D D=V OUT /V IN f SW I L I L =(1.15xI OUT ) (0.85xI OUT )=0.3xI OUT 1.5 (line/load regulation) L - 16 -
EMI (Schottky Diode) (Flywheel Diode) D1 MOSFET Schottky diode Schottky diode 1.5 1.5 Schottky Diode MOSFETC IN MOSFET MOSFET 1.15 10uF 1.5 VIN C I VIN PCB VIN GND 0.1uF ~ 1uF 1.5. IC. 1.3 ( ) LED LED LED - 17 -
PCB PCB 1. 2. IC GND 5mm 3. IC GND 4. 5. IC 6. PCB R SEN IC VIN 7. IC VIN GND 8. R SEN IC VIN SEN 9. SW Schottky diode 10. 11. 30 MOSFET 12. IC, IC 13. IC 45-18 -
(P D ) P D (max) = (T j,max T a ) / R th(j-a) Maximum Power Dissipation at Various Ambient Temperature Power Dissipation (W) 4.0 3.5 3.0 GMS Type: Rth=34.53 C/W GD Type: Rth=40.0 C/W 2.5 2.0 1.5 1.0 Safe Operation Area 0.5 0.0 0 20 40 60 80 Ambient Temperature ( C) - 19 -
Pb-free & Green * Pb-Free & Green" RoHS % (SnPb) % (SnPb) JEDEC J-STD-020C JEDEC J-STD-020C 245 o C 260 o C ( ) Temperature ( ) 250 255 240 260 +0-5 245 5 200 217 Average ramp-up rate= 0.7 /s 30s max Ramp-down 6 /s (max) 150 s max Peak Temperature 245 ~260 < 10s 50 Average ramp-up rate = 0.4 /s Average ramp-up rate= 3.3 /s 25 0 0 50 150 200 250 ----Maximum peak temperature Recommended reflow profile JEDEC Acc.J-STD-020C Time (sec) Package Thickness Volume mm 3 <350 Volume mm 3 350-2000 Volume mm 3 2000 <1.6mm 260 +0 o C 260 +0 o C 260 +0 o C 1.6mm 2.5mm 260 +0 o C 250 +0 o C 245 +0 o C 2.5mm 250 +0 o C 245 +0 o C 245 +0 o C * Pb-free & Green Package - 20 -
SYMBOL MIN. 8L NOM. MAX. D2 2.00 2.05 2.10 E2 1.60 1.65 1.70 e 0.65 BSC GMS GD : - 21 -
IC GD (SOP-8L) MBIXXXX or MBIXXXX Part number ID number Digits G: Green and Pb-free GMS (MSOP-8L) XXXX Part number ID number Digits IC V1.00 A V1.01 A RoHS (g) GMS MSOP-8L-118mil 0.0233g GD SOP8L-150-1.27 0.07g - 22 -
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