AP5199平均电流LED驱动IC 0-450V 10A大功率LED车灯驱动IC

　　ap 5 199led driverdeionthe ap5199 is an average current mode control led driver ic operating in a constant off-time mode. unlike ap5160,this control ic does not produce a peak-to-average error, and therefore greatly improves accuracy, line and load regulation of the led current without any need for loop compensation or high-side current sensing. the output led current accuracy is ±3%. the ic is equipped with a current limit comparator for hiccup-mode output short circuit protection. the ap5199 can be powered from an 8.0 - 450v supply. a pwm dimming input is provided that accepts an external control ttl compatible signal. the output current can be programmed by an internal 275mv reference, or controlled externally through a 0 - 1.5v dimming input.typical application circuitfeatures● fast average current control● programmable constant off-time switching● linear dimming input● pwm dimming input● output short circuit protection with skip mode● ambient operating temperature -40oc to +125oc● pin-compatible with the ap51 99applications● dc/dc or ac/dc led driver applications● led backlight driver for lcd displays● general purpose constant current source● led signage and displays● architectural and decorative led lighting

　　● led street lighting