舞臺(tái)燈，用于LED顯示器，建筑和裝飾LED照明，LED路燈

AP5 199

LED Driver

Description

The 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.

特性：

快速平均電流控制

可編程恒定關(guān)閉時(shí)間開關(guān)

線性調(diào)光輸入

PWM調(diào)光輸入

具有跳躍模式的輸出短路保護(hù)

環(huán)境工作溫度-40至125度

與AP5199兼容引腳

應(yīng)用：

● 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