SKY81452-13

PRODUCT SUMMARY SKY81452-13: Six-Channel, High Efficiency White LED Driver with Touch Screen Driver Supply Applications Tablet PCs Notebook computers Monitors Portable TV/DVD players Description The SKY81452-13 is a highly integrated, high efficiency LED backlight solution for tablets, notebook computers, monitors, and other portable devices. An integrated boost converter provides a high voltage output for driving up to 28 V. Six precision current sinks are programmable up to 60 mA per string. The integrated boost regulator switching frequency is adjustable from 600 kHz to 2 MHz for system integration flexibility, which optimizes efficiency and minimizes external passive component requirements. The SKY81452-13 supports Direct Pulse Width Modulation (DPWM) dimming and analog dimming modes. In the DPWM dimming mode, the output waveform follows the Pulse Width Modulation Input (PWMI) signal and the current level is set by I2C control and an external RSET resistor. In the analog dimming mode, the PWMI signal duty and the I2C brightness control signal are multiplied to control the output current level. When the PWM pin is not used, it should be pulled high. http://www.DataSheet4U.net/ Features Input voltage range: 2.5 V to 5.5 V Integrated 28 V boost converter Minimum off time: 50 ns Adjustable switching frequency Frequency range: 600 kHz to 2 MHz Up to 93% efficiency Boost current limit selection Six current sinks Up to 28 V, 60 mA per channel Accur...