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LTC3219

Part Number	LTC3219
Manufacturer	Linear Technology
Description	250mA Universal Nine Channel LED Driver
Published	May 3, 2010
Detailed Description	LTC3219 250mA Universal Nine Channel LED Driver FEATURES ■ Multimode Charge Pump Provides Up to 91% Efﬁciency ■ Slew Li...
Datasheet	LTC3219 PDF File

Overview

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.
5x or 2x Mode for Optimal Efﬁciency* ■ Automatic or Forced Mode Switching ■ Internal Soft-Start Limits Inrush Current ■ Short-Circuit/Thermal Protection ■ 3mm × 3mm 20-Lead QFN Plastic Package APPLICATIONS ■ Video Phones with QVGA+ Displays 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...

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