Would anyone have any suggestions for a very basic LED driver, with current regulation (boost not needed), that generates a selectable PWM on / off slope, and selectable blinking?
I am looking for
- something low-cost
- Current in the 20 mA range, voltage in the 3.3 V range preferred
- either a SOIC, SC70, or similar leaded package, not a BGA or leadless package
- a minimum number of pins and bare-minimum functionality / complexity
- I2C or pull-up resistors for mode selection - this will be controlled from an MSP430 (or hard-wired)
- Programming / mode selection should need no input once set up, and blinking should need no further input
- Should not need PWM to be fed to it, must generate it internally
- Fade-in and fade-out ramp options for exponential curve, I don't need linear.