MAX8678 Description
The MAX8678 integrates a charge pump for white lightemitting diodes (LEDs) with an audio loudspeaker amplifier. The high-efficiency, adaptive charge pump drives up to four LEDs with constant current for uniform brightness. The LED current is adjustable from 0.1mA/LED to 24mA/LED in 31 pseudo-logarithmic steps through a single-wire serial-pulse interface.
MAX8678 Key Features
- High-Efficiency White LED Charge Pump Individual Adaptive Supply for Each LED 4 Low-Dropout LED Current Regulators 24mA
- Soft-Start Limits Inrush Current
- Thermal Shutdown, Open- and Short-Circuit Protection
- 16-Pin, 3mm x 3mm Thin QFN Package