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LED lamp driver cuts BOM cost by 30%

The AP1695 LED lamp driver from Diodes optimises the design of sub 12W triac dimmer compatible LED lamps with a dimming range of 1 to 100% and up to 30% reduction in bill of materials.

For 120 and 230V mains dimmable retrofit LED lamps, such as the common 5W GU10 and 8W energy saver bulbs, the AP1695 uses a patented constant on-time control technique to enable deep triac dimming down to 1% and an increase in lamp/triac compatibility. Its dimming curve complies with the NEMA SSL6 standard and the driver is fully compliant with the requirements of the IEC6100-3-2 harmonic standard.

The AP1695 is a single stage driver integrating a 500V high voltage MOSFET into an SO-7 package. The device employs PFM technology to regulate output current up to 230mA (max), while maintaining a power factor higher than 0.9 and a THD rating less than 30%. Its boundary conduction mode ensures higher efficiency and enhanced EMI performance.

By operating on the primary side, the device removes the need for optocouplers, secondary side control and loop compensation circuitry. The AL1695 also has the following integrated protection features: over voltage, short circuit and over temperature protection.

Author
Laura Hopperton

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