 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| SP6652LED Evaluation Board Manual 3V to 5.5V Input Range Accurate 350mA or 900mA Output Current High Efficiency Small 10-Pin MSOP Package 1.2MHz Switching Frequency Enables Small Components Integrated Design with Minimal Components. Use 4 cell alkaline, NiCad, NiMH, or 1 cell Lithium Ion Battery or 3.3V or 5V Logic supply DESCRIPTION AND BOARD SCHEMATIC The SP6652LED Evaluation Board is a compact circuit that was built on SP6652 and can provide a stable drive current for a 1W or 3W Luxeon type light source. The SP6652 is an integrated synchronous buck regulator configured to provide constant output current for this application. The evaluation board is a completely assembled and tested surface mount board which provides easy probe access points to all SP6652 inputs and outputs so that the user can quickly connect and measure electrical characteristics and waveforms. VIN=3.0~5.5V L1 4.7uH 1W or 3W Luxeon VOUT U1 SP6652 10 9 8 RVIN 10.0 7 6 LX PVIN SVIN PGND SGND FB 1 2 3 4 5 Rz 100 10uF COUT 0.75V 4 U2 OUT 5 + 1 LMV321 2 3 Vref SYNC COMP MODE SD R3 R2 Rb1 CIN 10uF CVIN 1.0uF J1 1 2 3 Cc 10nF 280K 140K R1 10K Rb2 100mOhm SHDN R4 R4 Open: 1W 0 R4 Short: 3W Date: 05/15/06 RevA SP6652LED Evaluation Board Manual Copyright 2006 Sipex Corporation USING THE EVALUATION BOARD 1) Powering Up the SP6652LED Circuit The SP6652LED Evaluation Board can be powered from 4 cell alkaline, NiCad, NiMH, or 1 cell Lithium Ion Battery or 3.3V or 5V Logic supply. Connect with short leads directly to the "VIN" and "GND" posts. Plug the 1W Luxeon I or 3W Luxeon III between the "VOUT" and "Vref" posts. 2) Using the J1 Jumper for ON/OFF Control When the hat is put on 1 & 2 position, the SHDN pin is connected to Vin. When the hat is put on 2 & 3 position, the SHDN pin is tied to ground and the part will be in shutdown mode. 3) Select from 1W or 3W Application The board was set up for 1W application as default. In this application, R4 was open. When the customer need to use this board to drive Luxeon III, short R4 by using a 0 Ohm resistor. POWER SUPPLY DATA For the standard evaluation board, the following chart shows the efficiency data for different applications. SP6652LED 3 or 4 Cell to 1W LumiLEDs 100 400 350 SP6652LED 3 or 4 Cell to 3W LumiLEDs 100 1000 900 95 300 95 800 700 Iout (mA) 600 Efficiency (%) 250 Iout (mA) Efficiency (%) 90 90 85 200 150 100 50 85 500 400 80 1W Efficiency 1W Iout 80 3W Efficiency 3W Iout 300 200 100 75 75 70 2.8 3.2 3.6 4.0 4.4 Vin (V) 4.8 5.2 5.6 0 70 2.8 3.2 3.6 4.0 4.4 4.8 Vin (V) 5.2 5.6 6.0 0 6.0 Fig. 1 Efficiency data of the SP6652LED evaluation board Date: 05/15/06 RevA SP6652LED Evaluation Board Manual Copyright 2006 Sipex Corporation Page 2 of 4 EVALUATION BOARD LAYOUT FIGURE 1: SP6652LEDEB COMPONENT PLACEMENT FIGURE 2: SP6652LEDEB PC LAYOUT TOP SIDE FIGURE 3: SP6652LEDEB PC LAYOUT BOTTOM SIDE Date: 05/15/06 RevA SP6652LED Evaluation Board Manual Copyright 2006 Sipex Corporation Page 3 of 4 TABLE1: SP6652LEDEB LIST OF MATERIALS Ref. Des. U1 U2 C1N, COUT CVIN Cc L1 D Rb1 Rb2 RVIN Rz R1 R2 R3 R4 RI, RF J1 Qty. 1 1 2 1 1 1 1 1 NU 1 1 1 1 1 1 2 1 Manufacturer Sipex Corp. National Semi TDK Corp TDK Corp TDK Corp Wurth Elektronik LumiLEDs Vishay Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic SP6652LEDEB List of Materials Layout Size Component Vendor LxWxH SP6652 MSOP-10 High Efficiency Current Mode Buck Regulator Sipex 978-667-8700 LMV321M5 SOT23-5 Rail-to-Rail Output Operational Amplifiers National Semi C2012X5R0J106M 0805 10uF/6.3V/X5R/ Ceramic TDK 847-803-6100 C1608X5R1A105K 0805 1uF/10V/X5R/ Ceramic TDK 847-803-6100 C1608X7R1H103K 0805 10nF/50V/X7R/ Ceramic TDK 847-803-6100 744042004 4.8x4.8x1.8mm 4.7uH, 1.7A, 0.07ohm, SM Inductor www.we-online.com Luxeon I and III Open LumiLEDs CRCW0603R047F 0603 0.047 Ohm 1/16W 1% 0603 SM www.vishay.com Part Number 0603 0603 0603 0603 0603 0603 0603 10 Ohm 1/16W 1% 0603 SM 100 Ohm 1/16W 1% 0603 SM 10K Ohm 1/16W 1% 0603 SM 140K Ohm 1/16W 1% 0603 SM 280K Ohm 1/16W 1% 0603 SM Open Open 3-Pin Jumper 800-Digi-Key 800-Digi-Key 800-Digi-Key 800-Digi-Key 800-Digi-Key 800-Digi-Key 800-Digi-Key 800-Digi-Key ORDERING INFORMATION Model Temperature Range Package Type SP6652LEDEB............................. -40C to +85C...................SP6652LED Evaluation Board SP6652EU.....................................-40C to +85C...................................... 10-pin SOIC Date: 05/15/06 RevA SP6652LED Evaluation Board Manual Copyright 2006 Sipex Corporation Page 4 of 4 |
Price & Availability of SP6652LEDEB
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |