SL8412 具有平均模式恒流控制的LED驱动器

General Description

The SL8412 is an average current mode control LED driver IC operating in a constant off-time

mode. SL8412 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 SL8412 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

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