大功率调光IC支持PWM占空比调光线性模拟调光无频闪！

功率调光IC支持PWM占空比调光线性模拟调光无频闪！

AP7158B是以恒定关断时间模式工作的平均电流模式控制LED驱动器IC。 AP7158B不会产生峰均比误差，因此大大提高了LED电流的准确度，线路和负载调整率，而无需进行环路补偿或高端电流检测。

输出LED电流精度为±2％。AP7158B可由8.0 - 100V电源供电。提供PWM调光输入，可接受外部控制TTL兼容信号。

输出电流可由内部250mV基准电压源进行编程，或通过0.2 - 1.5V调光输入进行外部控制。

特征

快速平均电流控制

内部8至100V线性稳压器

线性和PWM调光功能

跳过模式输出短路保护

需要很少的外部元件进行操作应用

DC/ DC LED驱动器

应用

LED路灯

平板显示器的背光照明

通用恒流源

标志和装饰LED照明

景观灯驱动IC   植物生长灯驱动IC

联系曾生：13410492646  QQ:3004825478可提供IC测试板和配套方案。

大功率调光IC支持PWM占空比调光线性模拟调光无频闪！

General Description

The AP5169Bis an average current mode control LED driver IC operating in a constant off-time mode. AP5169Bdoes 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 ±2%.

The AP5169Bcan be powered from an 8.0 - 100V supply. A PWM dimming input is provided that accepts an external control TTL compatible signal. The output current can be programmed by an internal 250mV reference, or controlled externally through a 0.2 – 1.5V dimming input.

Features

Ø Fast average current control

Ø Internal 8 to 100V linear regulator

Ø Linear and PWM dimming capability

Ø Output short circuit protection with skip mode

Ø Requires few external components for operation

Applications

Ø DC/DC LED driver applications

Ø LED street lighting

Ø Back lighting of flat panel displays

Ø General purpose constant current source

Ø Signage and decorative LED lighting

Ø Chargers

联系曾生：13410492646  QQ:3004825478可提供IC测试板和配套方案。