Moreover, it averages 90% efficiency over the critical 3.5V to 3.7V input range, in which the lithium-ion (Li+) cell operates most often. This combination of space savings and efficiency makes the MAX8930 ideal for space-constrained flip phones with multiple displays and a peripheral, such as a CMOS imager, in the lid.
The MAX8930 features an I2C-compatible control interface and advanced dimming techniques to extend battery life. Automatic luminance control automatically adjusts the WLED brightness according to the ambient-light level, while the content-adaptive interface optimizes brightness based on the gamma-correction information of the image.
The MAX8930 is available in a tiny (3.17mm x 3.17mm), 49-bump wafer-level package (WLP), and is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Prices start at $3.45 (1000-up FOB USA). An evaluation kit with a USB interface and control software is available to facilitate designs.