The CMS1640 with LED Drivers SOP-28 RoHS manufactured by Cmsemicon is a surface-mounted device intended for use in various lighting applications. It is designed to drive up to four LEDs in series, and contains a special circuit which also allows for modulation of LED intensity. The package is RoHS compliant, and comes in a SOP-28, with a mounting height of just 2mm. The device is ideal for lighting applications such as automotive, mobile phone, and TV/monitor backlight. It is rated to operate from 1.5V to 3.6V, and can provide up to 830mA per string. The device also includes ESD protection, over temperature protection, and short circuit protection.