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LTC3219 - 250mA Universal Nine Channel LED Driver

Description

The LTC®3219 is a highly integrated multidisplay LED driver.

The device contains a high efficiency, low noise charge pump to provide power to nine universal LED current sources.

The LTC3219 requires only five small ceramic capacitors to form a complete LED power supply and current controller.

Features

  • Multimode Charge Pump Provides Up to 91% Efficiency.
  • Slew Limited Switching Reduces Conducted and Radiated Noise (EMI).
  • Up to 250mA Total Output Current.
  • Nine 28mA Universal Current Sources with 64-Step Linear Brightness Control.
  • Independent On/Off, Brightness Level, Blinking and Gradation Control for Each Current Source Using 2-Wire I2CTM Interface.
  • Internal Current Reference.
  • Configurable ENU Pin for Asynchronous LED On/Off Control.
  • Low Noise Charge Pump.

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Full PDF Text Transcription

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LTC3219 250mA Universal Nine Channel LED Driver FEATURES ■ Multimode Charge Pump Provides Up to 91% Efficiency ■ Slew Limited Switching Reduces Conducted and Radiated Noise (EMI) ■ Up to 250mA Total Output Current ■ Nine 28mA Universal Current Sources with 64-Step Linear Brightness Control ■ Independent On/Off, Brightness Level, Blinking and Gradation Control for Each Current Source Using 2-Wire I2CTM Interface ■ Internal Current Reference ■ Configurable ENU Pin for Asynchronous LED On/Off Control ■ Low Noise Charge Pump Operates in 1x, 1.
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