SM5306 Datasheet | Silicon Mitus

CONFIDENTIAL - Target Datasheet SM5306 High-Efficiency Dual-String with up to 10-WLED White LED Driver Description 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 I2Cpatible 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. Additionally, pulsed width modulation (PWM) brightness control can be enabled allowing for LED current adjustment by a logic level PWM signal. The boost switching frequency is programmable at 500kHz for low switching loss performance or 1MHz to allow the use of tiny low profile inductors. A setting for a 10% offset of these frequencies is available. Over Voltage Protection is programmable at 16V, 24V, 32V, or 40V to acmodate a wide variety of LED configurations and schottky diode/output capacitor binations. The SM5306 is available in a 12-bump, 1.65mm x 1.43mm WLCSP package. Applications - Mobile and Smart Phones LCD Backlight - Tablet LCD Backlight - Portable Devices LCD Backlight 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 Board...