Description
The LTC®3220/LTC3220-1 are highly integrated multidisplay LED drivers.
These parts contain a high efficiency, low noise charge pump to provide power to up to eighteen universal LED current sources.
Features
- n Eighteen 20mA Universal Current Sources with 64-Step Linear Brightness Control
n Independent On/Off, Brightness Level, Blinking and Gradation Control for Each Current Source Using 2-Wire I2C Interface
n Low Noise Multi-Mode Charge Pump (1x, 1.5x, 2x) Provides Up to 91% Efficiency
n Slew Limited Switching Reduces Conducted and Radiated Noise (EMI)
n Up to 360mA Total Output Current n Internal Current Reference n Single Reset Pin for Asynchronous Shutdown and
Reset of All Data Registers n Two I2.