Diodes launches a new LED driver to improve the compatibility of the dimmer

Diodes (DiodesIncorporated) launches LED drive AL1697, which is suitable for line - Powered Triac adjustable light LED lighting applications. The new product uses a single stage high-power factor dimming circuit that meets the NEMA SSL-6 dimming standard, which is compatible with the front trigger (Leading-edge) and the rear edge trigger (Trailing-edge) Triac dimmers to provide the best linear and load regulation. AL1697 integrates the MOSFET to save the auxiliary windings, effectively reduce the cost of the peripheral materials and reduce the area of the circuit board, so that it can drive up to 15W LED lamps, and become both attractive and competitive solutions.

AL1697 is an accurate and efficient LED drive with high and low voltage, its topology provides accurate output current, thus ensuring excellent linear and load regulation. The component design supports the non isolated lifting and lowering operation to meet the different requirements of the lamps and lanterns for the isolation drive power supply. AL1697 can improve the conversion efficiency, reduce the switching noise and simplify the EMI design by using the critical conduction mode. It has a low starting current of 130 mu A and a low operating current of 170 mu A.

The AL1697 provides two MOSFET options, including a 4 Omega drain source resistance specification suitable for up to 2A/600V operations, and a 1.8 Omega super connection (super-junction) resistance specification that can support the 4A/650V operation. The component has a standard internal protection function, including output short circuit, over temperature, undervoltage locking, cutting edge hidden and periodic over current protection. In order to improve security and reliability, it also provides overvoltage / output opening and thermal reentry protection.

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