LTC3212
Features
Power and Current Control for Driving RGB LEDs
- Individually Programmable Current Sources
- 1x or 2x Mode, Low Noise, Constant Frequency Charge Pump
- Single Wire Enable Control for All LEDs
- White Mode Adjusts R, G, B Currents for White Light
- 25m A Maximum LED Current
- V Range: 2.7V to 5.5V IN
- Automatic Soft-Start, Mode Switching and Output Disconnect in Shutdown Mode
- Available in 12-Lead (3mm × 2mm) DFN Package
- Description
The LTC®3212 is a low noise charge pump RGB LED driver capable of driving three LEDs up to 25m A each from a 2.7V to 5.5V input. Low external part count (one flying capacitor, two bypass capacitors and one to three programming resistors) makes the LTC3212 ideally suited for small, battery-powered applications. Built-in soft-start circuitry prevents excessive inrush current during start-up and mode switching. High switching frequency enables the use of small external capacitors. The charge pump shuts down to a high impedance mode to...
