Switching at a frequency of up to 1 MHz and ensuring closely controlled rise and fall times, the AL8807 buck LED driver from Diodes has been designed to reduce EMI issues in the lower cost MR16 LED lamp market.
To achieve required higher output power, the driver can operate at input voltages of 6 - 30 and provide up to eight series of connected LEDs with a constant 1 A.
The driver’s current accuracy of ±5% means it will meet the requirements of most general low voltage lighting applications and lead to an improvement in inter-lamp luminance matching in 3 W LED lighting systems. The driver is up to 96% efficient and the output current is simple to set, using a single external resistor.
Dimming control is via the application of either a DC voltage or PWM signal on the driver’s control input, which also protects against any over-driving of the LED current. The driver’s 1000:1 PWM dimming ratio and DC dimming range is 16 - 100%.
Phone: 03 9262 0600
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