SM5306 - Silicon Mitus

SM5306 High-Efficiency Dual-String

The SM5306 is a current mode boost converter which supplies the power and controls current in up to two strings of 10 LEDs per string. Programming is done over an I2Ccompatible interface. The maximum LED current is adjustable from 5mA to 28.5mA. At any given maximum LED current the LED brightness is further adjusted with exponential or linear dimming steps. .

Features

 Drives up to Two String of 10 Series LEDs
 11-bit Programmable Dimming Resolution
 Exponential or Linear Brightness Control
 PWM Brightness Control for CABC Operation
 Independent Current Control per String
 Internal Soft-Start Limits Inrush Current
 Wide 2.5V to 5.5V Input Voltage Range
 Adaptive Headroom Control
 Selectable Boost Frequency of 500kHz or 1MHz with Optionally Additional Offset
 12-Bump 1.65mm x 1.43mm WLCSP Package
 Protections . Programmable 16V/24V/32V/40V Over-Voltage Protection . LED Open/Short Circuit Protection . Thermal Shutdown . Current Limit Evaluation Boa.