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SP6652LED Fiches technique(PDF) 2 Page - Sipex Corporation |
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SP6652LED Fiches technique(HTML) 2 Page - Sipex Corporation |
2 / 4 page Date: 05/15/06 RevA SP6652LED Evaluation Board Manual Copyright 2006 Sipex Corporation Page 2 of 4 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 70 75 80 85 90 95 100 2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6 6.0 Vin (V) 0 50 100 150 200 250 300 350 400 1W Efficiency 1W Iout SP6652LED 3 or 4 Cell to 3W LumiLEDs 70 75 80 85 90 95 100 2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6 6.0 Vin (V) 0 100 200 300 400 500 600 700 800 900 1000 3W Efficiency 3W Iout Fig. 1 Efficiency data of the SP6652LED evaluation board |
Numéro de pièce similaire - SP6652LED |
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Description similaire - SP6652LED |
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