ETA1638中文资料30V/50mA LED 驱动数据手册ETA规格书

描述 Description

The ETA1638 is a driver specially designed for back-lighting. It consists of a high accuracy current sink that allows low duty dimming and a high efficiency step-up converter with an integrated low side and high side power MOSEFT. It runs with an optimal 0.6MHz frequency that enables use of small external components while still providing best efficiencies.

特性 Features

• Synchronous Boost, No Schottky Diode Needed

• Internal Current Source Driving, no need of external current setting resistor

• ±10% LED Current Accuracy at 1% Diming Ratio

• Capable of 0.1% dimming ratio

• Up to 85% Efficiency (6 LEDs)

• Drive up to 8 LEDs

• 30V Output Over Voltage Protection

• LED string Short Circuit Protection

• True PWM Brightness Control

• 1A current limit

应用 Application

• Cellphone and Smartphone

• MID or Tablet PC

• Camera

• Car DVR Recorder