The first driver to current LEDs for conductivity 2.8 A, for example, Seoul Semicon P7.
Driver power to correct such a diode at a supply voltage 5-15V. Output obtain true constant current. Application circuit with synchronous rectifier allows for high efficiency. The high frequency causes the choke and the capacitors are small, despite the large output current.
An additional advantage is the microprocessor control that allows for different levels of brightness, and effects units. Brightness is controlled by PWM modulation. Switching modes is via power switch - cutting off power for a split second changes the mode to the next.
Driver can power 1-3 LED P7 or the like. You can also use it to control eg 3-4 LEDs Cree XR-E connected in parallel, provided that the selection of similar voltage diode conduction.
Parameters:
- Recommended supply voltage 5-15V
- Maximum output current 2.7 A + / - 0.15 A
- with the ability to switch power switch
- stabilization of the output current and the output short circuit
- high efficiency of the actual
- maximum fill factor of the key 85%, which means that the 5V power mininalne
- Maximum output voltage 15V (max. 3 LEDs in series at the outlet) - Do not connect the inverter without load
- high frequency - typically 900kHz
- lack of protection against reverse connection of power
- protection against short circuits, overloading and overheating
- type of work - declining converter - step-down
- Dimensions: 21.3 x22x6mm
- can supply up to 3 LEDs in series with a voltage of 4V
- PCB with SMD
Despite a good performance requires additional cooling plate, which will allow the dispersal of about 3W power. |
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This product was added to our catalog on Monday 22 September, 2008. |
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