Monolithic Power Systems, Inc. LED Drivers MP3378GY-Z

The MP3378GY-Z is a versatile LED driver IC designed for monitor applications, featuring a step-up controller with four current channels for white LED (WLED) backlighting and a high-efficiency buck converter for internal bus voltage or standby power. It supports an input voltage range of up to 24 V and can drive up to 350 mA per LED string, ensuring precise current regulation through an external resistor. The device offers both analog and PWM dimming capabilities, allowing for flexible brightness control. Protection features include over-current protection (OCP), over-temperature protection (OTP), under-voltage protection (UVP), over-voltage protection (OVP), and short/open LED protection, enhancing reliability in various applications. The buck converter operates with low Rds(on) internal MOSFETs, providing excellent load and line regulation, and includes a power-save mode for efficiency. The MP3378GY-Z is available in SOIC-28 and TSSOP-28EP packages, making it suitable for compact designs in desktop LCD flat panel displays, flat panel video displays, and 2D/3D LCD TVs and monitors.