EUP3611 1A Charge Pump LED Driver DESCRIPTION FEATURES The EUP3611 is a large-current charge pump designed specifically for white LEDs used in camera flash applications. Only one small bucket capacitor is required to develop the output drive, providing a low EMI solution compared with inductive boost regulators. The EUP3611 has two operation modes: Flash mode and Movie mode. In Flash mode, the EUP3611 is capable of delivering up to 1A. A safety timer is also included to ensure the LED can not be on indefinitely and overheat. The EUP3611 is available in a 10-pin TDFN and WCSP-12 packages. Flash mode - output current up to 1A at VIN=3.6V Flash and movie - two selectable modes Built in flash mode safety timer protection 1X and 2X automatic mode for high efficiency Input range – 2.7V to 5.5V External flash control pin for synchronization to a camera module or graphics controller Short-circuit, over-voltage, over-current and over-temperature protection Soft-start functionality 3mm × 3mm TDFN-10 and 1.2mm × 1.6mm WCSP-12 Packages RoHS compliant and 100% lead (Pb)-free Halogen-Free APPLICATIONS Typical Application Circuit Figure 1. DS3611 Ver1.0 May 2014 1 Mobile Camera Phones Digital Cameras PDAs with Built-In Cameras