SP6134HVLED SIPEX | Alldatasheet
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Rev 07/08/04 SP6134HVLED Evaluation Board Manual Copyright 2004 Sipex Corporation DESCRIPTION AND BOARD SCHEMATIC The SP6134HVLED Evaluation Board is designed to help the user evaluate the performance of the SP6134H for use as a Luxeon 1W/3W/5W Dr iver. The evaluation board is a completely assembled and tested surface mount board wh ich provides easy probe access points to all SP6134H inputs and output s so that the user can quickly connect and measure electrical characteristics and waveforms. Ideal for 24V Bus Application Single Board for 1W, 3W and 5W
Applications
High Efficiency Small 10-Pin MSOP Package 600kHz Switching Frequency Enables Small Components Integrated Design with Minimal Components. Dual MOSFET for Spacing Saving SP6134HVLED Evaluation Board Manual
USING THE EVALUATION BOARD 1) Powering Up the SP6134HVLED Circuit The SP6134HVLED Evaluation Board can be powered from a 24V power supply. Connect with short leads directly to the “VIN” and “G ND” posts. Plug the 1W/3W/5W Luxeon LumiLED between the “VOUT” and “VFB” posts. Refer to sect ion 2 for Jumper (J1) setup for different LumiLED applications. 2) Using the J1 Jumper for different LumiLED Applications The SP6134HVLED Evaluation Board can be used to drive 1W, 3W or 5W LumiLED respectively, this can be done by using the J1 Ju mper. When no hat was used for the J1, it is setup for 1W application. When t he hat is put on 1 & 2 position, it is used for 5W application. When the hat is put on 2 & 3 position, it is used for 3W application. 3) Selecting the Bias Resistor The feedback voltage was progra mmed to be 200mV by using two divider resistors (R 2 and R4) at the soft start pin. (The intern al 0.8V reference was overwrit ten by the programmed 0.2V to reduce the sense voltage and increase the efficiency) . The bias resistor is used to set the operating current of the LumiLED as equation F FB b I VR = where VFB is set as 200mV, IF is the operating current of the LumiLED. For 1W application, IF=350mA, Rb=R1=0.56Ohm For 5W application, IF=700mA, Rb=R1//R5=0.28Ohm For 3W application, IF=1000mA, Rb=R1//R3=0.2Ohm POWER SUPPLY DATA For the standard evaluation board, the following chart shows the efficiency data for different applications. 100 Single Two Three Four Five Six Efficiency (%) Fig. 1 Efficiency data of the SP6134HVLED evaluation board
TABLE1: SP6134HVLEDEB LIST OF MATERIALS
ORDERING INFORMATION
Model Temperature Range Package Type