LTC3219
Overview
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.
- 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
