功率調光IC支持PWM占空比調光線性模擬調光無頻閃！
AP7158B是以恒定關斷時間模式工作的平均電流模式控制LED驅動器IC。 AP7158B不會產生峰均比誤差，因此大大提高了LED電流的準確度，線路和負載調整率，而無需進行環(huán)路補償或高端電流檢測。
輸出LED電流精度為±2％。AP7158B可由8.0 - 100V電源供電。提供PWM調光輸入，可接受外部控制TTL兼容信號。
輸出電流可由內部250mV基準電壓源進行編程，或通過0.2 - 1.5V調光輸入進行外部控制。
特征
?快速平均電流控制
?內部8至100V線性穩(wěn)壓器
?線性和PWM調光功能
?跳過模式輸出短路保護
?需要很少的外部元件進行操作應用
?DC/ DC LED驅動器
應用
?LED路燈
?平板顯示器的背光照明
?通用恒流源
?標志和裝飾LED照明
景觀燈驅動IC 植物生長燈驅動IC
聯系曾生：13410492646 QQ:3004825478可提供IC測試板和配套方案。
大功率調光IC支持PWM占空比調光線性模擬調光無頻閃！
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
聯系曾生：13410492646 QQ:3004825478可提供IC測試板和配套方案。
