功率調(diào)光IC支持PWM占空比調(diào)光線性模擬調(diào)光無頻閃！

AP7158B是以恒定關(guān)斷時(shí)間模式工作的平均電流模式控制LED驅(qū)動(dòng)器IC。 AP7158B不會(huì)產(chǎn)生峰均比誤差，因此大大提高了LED電流的準(zhǔn)確度，線路和負(fù)載調(diào)整率，而無需進(jìn)行環(huán)路補(bǔ)償或高端電流檢測。

輸出LED電流精度為±2％。AP7158B可由8.0 - 100V電源供電。提供PWM調(diào)光輸入，可接受外部控制TTL兼容信號。

輸出電流可由內(nèi)部250mV基準(zhǔn)電壓源進(jìn)行編程，或通過0.2 - 1.5V調(diào)光輸入進(jìn)行外部控制。

特征

?快速平均電流控制

?內(nèi)部8至100V線性穩(wěn)壓器

?線性和PWM調(diào)光功能

?跳過模式輸出短路保護(hù)

?需要很少的外部元件進(jìn)行操作應(yīng)用

?DC/ DC LED驅(qū)動(dòng)器

應(yīng)用

?LED路燈

?平板顯示器的背光照明

?通用恒流源

?標(biāo)志和裝飾LED照明

景觀燈驅(qū)動(dòng)IC 植物生長燈驅(qū)動(dòng)IC

聯(lián)系曾生：13410492646QQ:3004825478可提供IC測試板和配套方案。

大功率調(diào)光IC支持PWM占空比調(diào)光線性模擬調(diào)光無頻閃！

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

? Fast average current control

? Internal 8 to 100V linear regulator

? Linear and PWM dimming capability

? Output short circuit protection with skip mode

? Requires few external components for operation

Applications

? DC/DC LED driver applications

? LED street lighting

? Back lighting of flat panel displays

? General purpose constant current source

? Signage and decorative LED lighting

? Chargers

聯(lián)系曾生：13410492646QQ:3004825478可提供IC測試板和配套方案。