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SP7618EB Datasheet(PDF) 3 Page - Sipex Corporation |
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SP7618EB Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 6 page Dec 7-06 SP7618 Evaluation Board Manual © 2006 Sipex Corporation Page 3 of 6 . Position of DIP-Switches Number of pulses 1 2 3 4 5 1 + + + + 2 + + + + 3 + + + 4 + + + + 5 + + + 6 + + + 7 + + 8 + + + + 9 + + + 10 + + + 11 + + 12 + + + 13 + + 14 + + 15 + 16 + + + + 17 + + + 18 + + + 19 + + 20 + + + 21 + + 22 + + 23 + 24 + + + 25 + + 26 + + 27 + 28 + + 29 + 30 + 31 Table 1. Code Table Note: “+”- this switch is in ON position If all switches are in ON position the number of pulses is 256. 2) Powering Up the SP7618 Circuit The SP7618 Evaluation Board can be powered from a 4.5V power supply or from 3 alkaline cells. Connect 4.5V source pin with short lead directly to the “Vin” and -4.5V/GND pin to the “GND” posts. Install shunt S1 to short pins 2-3 (The Evaluation board is delivered by default with shunt in this position. If shunt S1 isn’t installed or short pins 1-2 the driver SP7618 is disabled). Push the button S2. Driver (U2) will provide to the LED current in respect to dip-switch (U3) position. If the output current is higher than 266mA (8 pulses), the driver will turn off after 4s to prevent LED damage. Every push on button S2 turns the driver off/on and sends the CTRL pin a new pulse sequence depending on the dip-switch position. Disconnect Evaluation board from power supply to turn it off. |
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