NCP5030MTTXGEVB NCP5030 High Power Lighting Evaluation Board User's Manual http://onsemi.com EVAL BOARD USER'S MANUAL Overview OVP (Over-Voltage Protection). The high switching frequency allows the use of a low value 4.7 mH inductor and ceramic capacitors. The NCP5030 is in a low profile and efficient thermally enhanced 3 x 4 mm DFN package. The NCP5030 is a fixed frequency PWM buck-boost converter optimized for constant current applications such as driving high-powered white LED. The buck-boost is implemented in an H-bridge topology and has an adaptive architecture where it operates in one of three modes: boost, buck-boost, or buck depending on the input and load condition. This device has been designed with high-efficiency for use in portable applications and is capable of driving up to 1.2 A pulse current and 900 mA continuous current into a high power LED for camera flash, flashlight, torch and similar applications. To protect the device cycle by cycle current limiting and a thermal shutdown circuit have been incorporated as well as output NCP5030 High Power Lighting Evaluation Board This evaluation board demonstrates the overall NCP5030 capabilities and offers very easy current programming. The output current is fully configurable via the usage of 4 external resistors and corresponding jumper headers. The NCP5030 lighting evaluation board schematic is depicted in Figure 2. Figure 1. NCP5030MTTXGEVB Board Picture (c) Semiconductor Components Industries, LLC, 2012 May, 2012 - Rev. 1 1 Publication Order Number: EVBUM2111/D NCP5030MTTXGEVB SCHEMATIC VLF5014 4R7/RLF7030 4R7 12 R108 82 k 1 CTRL 3 11 J102 CONN RECT 3 VOUT AGND COMP FB PGND PCA TP101 3 2 1 7 10 U101 R107 39 k 4 5 6 LX2 C105 10 m VIN C104 1m 2 1 13 VS PVIN R101 100 k 1 C101 330 p J103 CONN RECT 2 LXCL-PWF1 C103 22 m 9 10 8 6 4 2 9 7 53 1 1 3 2 1 J105 J108 HEADER 6 1 2 3 4 5 6 Lambertian 2 1 200 mV 1 J111 CC CC CC CC CC CC CC CC CC CC CC H1 J109 CONN RECT 5x2 H2 1 Fixed Hole 1 Fixed Hole J107 3*AA Bat Holder J101 HEADER 2 D102 2 TP102 C102 22 p PVIN 2 D101 8 NCP5030 DFN 1 2 2 TP104 1 PVIN LX1 LX1 1 1 R102 0.51 R103 0.51 R104 0.51 1 R105 2 R106 PVIN J104 4.7 mH L101 TP103 + 1 - 2 J110 HEADER 2 1 GND 2 J106 CONN RECT 3 H3 1 Fixed Hole H4 1 Fixed Hole Figure 2. NCP5030 High Power Lighting Evaluation Board Schematic Operation CAUTION: L101 selection depends on the output current, VLF5014A4R7M1R1 is recommended at output current under 500 mA, and RLF7030T4R7M3R4 is recommended when output current is larger than 700 mA. The power supply of NCP5030 should be from 2.7 V to 5.5 V. Maximum input voltage is 7.0 V and maximum continuous output current is 900 mA. 1. Exceeding the maximum input voltage may damage NCP5030 permanently! 2. Too long time duration at over output current may decrease LED life time or even damage LED! Table 1. Input Power Connector Symbol Descriptions J101-1 Positive terminal of external power supply J101-2 GND of external power supply J107-1 Positive terminal of 3*AA batteries in serial J107-2 GND of 3*AA batteries in serial Table 2. Output Power Connector J108-1/2 VOUT of NCP5030 J108-5/6 FB of NCP5030 http://onsemi.com 2 NCP5030MTTXGEVB Table 3. Jumper Setup Symbol Descriptions J102-1/2 Peak current set to about 3 A, peak current and setting resistor selection can reference the datasheet of NCP5030 J102-2/3 Peak current set to about 1.5 A, peak current and setting resistor selection can reference the datasheet of NCP5030 J103 Short will connect CTRL to PVIN and enable NCP5030 J110 GND test jumper J104 Must be connected to ensure NCP5030 work properly, can measure inductor current here, such as peak current of inductor J105 Select D101 as load of NCP5030, be careful if J111 or J108 is connected J111 Select D102 as load of NCP5030, be careful if J105 or J108 is connected J109 Output current setting, reference to table 5(Output current setting table) Table 4. Test Points TP101 CTRL and enable of NCP5030. TP102 FB, feedback, reference voltage is 200 mV. TP103 Switch LX1 TP104 Switch LX2 Current Setting Selection The output is determined by the resistor or resistors connected between FB pin and GND. R102 to R106 and J109 are used for output current setting according to eq. 1: Iout(A) + 0.2 R(W) Where R is the total resistance between FB and GND, J109 allows parallel connections of several resistors to select output current. Following is the output current setting table of J109 (1 = short connected; 0 = left open) (eq. 1) Table 5. Output Current Setting Table PIN9-10 PIN7-8 PIN5-6 PIN3-4 PIN1-2 Output Current (mA) 0 0 0 0 1 100 0 0 0 1 0 200 0 0 0 1 1 300 0 0 1 0 0 400 0 0 1 0 1 500 0 0 1 1 0 600 0 0 1 1 1 700 0 1 1 0 0 800 0 1 1 0 1 900 http://onsemi.com 3 NCP5030MTTXGEVB Efficiency Test Figure 3 and Figure 4 describe efficiency results in different conditions. Efficiency vs. VIN 100.0 350 mA 90.0 80.0 900 mA 500 mA 700 mA 70.0 60.0 50.0 40.0 30.0 20.0 10.0 5.50 5.40 5.30 5.20 5.10 5.00 4.90 4.80 4.70 4.60 4.50 4.40 4.30 4.20 4.10 4.00 3.90 3.80 3.70 3.60 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 0.0 Figure 3. Efficiency vs. Input Voltage, Rpca = 82 KW, load = LXHL - PW09, Inductor = VLF5014A4R7M1R1 for Iout = 350 mA, 500 mA and 700 mA, RLF7030T4R7M3R4 for Iout = 900 mA Efficiency vs. VIN 100.0 90.0 80.0 RLF7030T4R7M3R4 VLF5014A4R7M1R1 70.0 60.0 50.0 40.0 30.0 20.0 10.0 5.50 5.40 5.30 5.20 5.10 5.00 4.90 4.80 4.70 4.60 4.50 4.40 4.30 4.20 4.10 4.00 3.90 3.80 3.70 3.60 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 0.0 Figure 4. Efficiency vs. Input Voltage @ Inductor, Iout = 900 mA, Rpca = 82 KW, load = LXHL - PW09, Vf = 3.9 V http://onsemi.com 4 NCP5030MTTXGEVB Output Current Regulation Figure 5 shows the relationship between output current regulation Rpca and input voltage. There may be a tradeoff between output current and input current limit. Efficiency vs. VIN 1000.0 Rpca = 39 KW 900.0 800.0 Rpca = 82 KW 700.0 600.0 500.0 400.0 300.0 200.0 0.0 5.50 5.40 5.30 5.20 5.10 5.00 4.90 4.80 4.70 4.60 4.50 4.40 4.30 4.20 4.10 4.00 3.90 3.80 3.70 3.60 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 100.0 Figure 5. Output Current Regulation vs. Input Voltage @ Rpca, Iout = 900 mA Inductor = RLF7030T4R7M3R4; Load = LXHL - PW09, Vf = 3.9 V http://onsemi.com 5 NCP5030MTTXGEVB PCB LAYOUT Figure 6. Assembly Layer Figure 7. Top Layer Routing http://onsemi.com 6 NCP5030MTTXGEVB BILL OF MATERIALS ROHS Compliant 1 Ceramic chip capacitor 330 pF 5% 0603 TDK C1608C0G1H331J Yes Yes C102 1 Ceramic chip capacitor 22 pF 5% 0603 TDK C1608C0G1H220J Yes Yes C103 1 Ceramic chip capacitor 22 mF 20% 0805 TDK C2012X5R0J226M Yes Yes C104 1 Ceramic chip capacitor 1 mF 20% 0603 TDK C1608X5R0J105M Yes Yes C105 1 Ceramic chip capacitor 10 mF 20% 0805 TDK C2012X5R0J106M Yes Yes L101 1 Chip winding magnetic shielded inductor 4.7 mH 20% 4.5*4.7 mm TDK VLF5014AT-4R7M1R1 Yes Yes Qty Description Tolerance C101 Designator Substitution Allowed Table 6. BILL OF MATERIALS FOR THE NCP5030MTTXGEVB HIGH POWER LIGHTING EVALUATION BOARD Value Footprint MFG MFG Part Number 6.8*7.3 mm RLF7030T-4R7M3R4 R101 1 Chip resistor 100 KW 5% 0603 Std. Std. Yes Yes R102 1 Chip resistor TBD (not mounted) NA 0805/1206 Std. NA NA NA R103, R104 2 Chip resistor 0.51 W 1%,1/4W 0805/1206 Std. Std. Yes Yes R105 1 Chip resistor 1W 1%,1/8W 0805/1206 Std. Std. Yes Yes R106 1 Chip resistor 2.2 W 1%,1/8W 0805/1206 Std. Std. Yes Yes R107 1 Chip resistor 39 KW 5% 0603 Std. Std. Yes Yes R108 1 Chip resistor 82 KW 5% 0603 Std. Std. Yes Yes TP101TP104 4 PCB terminal 1 mm NA NA Standard 1 mm Std. Std. Yes Yes U101 1 Buck-Boost driver for high power flash LED NA NA WDFN12, 3*4 mm NCP5030MTTXG No Yes J101 1 Header X 2 NA NA SL5.08/2/90 J102, J106 2 Header 3 pin, 0.1 inch spacing NA NA J103, J104, J105, J111 4 Header 2 pin, 0.1 inch spacing NA J107 1 3*AA Battery holder J108 1 J109 ON Semiconductor SL5.08/2/90B Weidmuller Yes Yes 0.100*3 Std. Std. Yes Yes NA 0.100*2 Std. Std. Yes Yes NA NA 1.84*2.25 mm MPD BH3AA-PC No Yes Header 6 NA NA 0.100*6 AMP 535676 No Yes 1 Header 2*5,0.1 inch spacing NA NA 0.100*2*5 Std. Std. Yes Yes J110 1 GND jumper 400 mil spacing NA NA 0.400 spacing Yes Yes D101 1 LXCL-PWT1 NA NA 2.0*1.6 mm Lumileds LXCL-PWT1 No Yes D102 1 Lambertian LED modules LUXEON I LUXEON III NA Lambertian Lumileds LXHL-PW01 LXHL-PW09 Yes Yes http://onsemi.com 7 D3082-B01 Harwin NCP5030MTTXGEVB TEST PROCEDURE 18. Power off and configure J102 at 1-2 position; 19. Configure J109 in 100 mA position (pin1-2 shorted); 20. Power on, check D101 is lighting; 21. Power off, open J105, short J111 (if D102 mounted); 22. Power on, check D102 is lighting (if D102 mounted); 23. Power off, open J105, J111, connect J108 to external LED or LED module (if there is); 24. Power on, check external LED or LED module is lighting (if there is); 25. Power off; 26. Configure board default and connect jumpers accordingly * Place board in 300 mA output current configuration: * Place jumpers on J109 1-2(100 mA), 3-4(200 mA), 9-10(0 mA); * Place a jumper on J102 2-3; 1. Visual inspection the board after solder, there should be no short, redundant solder ball. 2. Measure the resistance of each pin of NCP5030 to GND, there should be no short to GND (except pin GND) or each other. Measure the forward and backward resistance of D101/D102. Ensure solder is good. 3. Short J104; 4. Short J103; 5. Short J106 2-3(power supply from J101); 6. Configure J102 in 2-3 position; 7. Short J105, open J111, J108; 8. Configure J109 in 100 mA position (pin1-2 shorted); 9. Configure power supply output voltage to 3.7 V. 10. Power off and connect power supply to J101; 11. Power on, check D101 is lighting; 12. Power off and Configure J109 in 200 mA position (pin3-4 shorted); 13. Power on, check D101 is lighting; 14. Power off and Configure J109 in 400 mA position (pin5-6 shorted); 15. Power on, check D101 is lighting; 16. Power off and Configure J109 in 400 mA position (pin7-8 shorted); 17. Power on, check D101 is lighting; * Place jumpers on J103/J104; * Place a jumper on J105 and make sure J111 is open; * Place a jumper on J106 2-3; ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. 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