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HIGH EFFICIENCY DIMMABLE LED DRIVER
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The DIODES™ AL1698K is a high efficiency, high performance, high power factor, and high current precision boost, buck-boost, and flyback dimmable LED driver for triac dimmable LED lamp applications. The device provides an accurate output current over wide line and load regulation. It can achieve higher than 90% efficiency by using a boost topology to meet the latest lighting regulatory high efficiency requirements. The wide switching frequency operates at Boundary Conduction Mode (BCM) to ease EMI/EMC design and testing.
The AL1698K LED driver has a built-in high voltage JFET, which provides the system with fast start-up time and enables users an easy and stable VCC supply design. The LED driver integrates a 600V/2A high voltage MOSFET. It can cover both 120VAC and 230VAC triac dimmable applications with eliminating the external high voltage MOSFET, which will reduce the system BOM cost. The device has built-in thermal fold-back protection trigger point to automatically reduce output current. Other protection features enhance LED lighting system's safety and reliability.
The device's dimming curve is compliant with the NEMA SSL6 standard. It also applies to a wide range of dimmers, including leading edge and trailing edge dimmer, to achieve deep dimming down to 1%.
The AL1698K is available in the SO-7 package.
|Minimum Input AC Voltage (VAC)||85|
|Maximum Input AC Voltage (VAC)||265|
|Maximum DC VDD (VDC)||10.5|
|LED Current (mA)||300|
|Accuracy (%)||3 %|
|Efficiency (%)||90 %|
|SupplyCurrent (mA)||0.31 mA|
|Temperature Range (°C)||-40 to 105 °C|