SL8411 8-100V輸入 LED汽車前大燈降壓恒流芯片 大功率工作燈降壓恒流芯片 內部集成過溫保護

小鄭

General Description
The SL8411 is an average current mode control LED driver IC operating in a constant off-time
mode. SL8411 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 ±2%.
The SL8411 can be powered from an 8.0 - 100V supply. PWM & Linear dimming input is provided
that accepts an external control TTL compatible signal. The output current can be programmed by an
internal 250mV reference.
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 or AC/DC LED Driver Applications
 LED Street Lighting
 Back Lighting of Flat Panel Displays
 General Purpose Constant Current Source
 Signage and Decorative LED Lighting
 Chargers
Typical Application Circuit