EUP3611 EUTECH | Alldatasheet
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Technical content
DS3611 Ver1.0 May 2014 1A Charge Pump LED Driver
DESCRIPTION
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. Typical Application Circuit
FEATURES
/circle6 Flash mode - output current up to 1A at VIN=3.6V /circle6 Flash and movie - two selectable modes /circle6 Built in flash mode safety timer protection /circle6 1X and 2X automatic mode for high efficiency /circle6 Input range – 2.7V to 5.5V /circle6 External flash control pin for synchronization to a camera module or graphics controller /circle6 Short-circuit, over-voltage, over-current and over-temperature protection /circle6 Soft-start functionality /circle6 3mm × 3mm TDFN-10 and 1.2mm × 1.6mm WCSP-12 Packages /circle6 RoHS compliant and 100% lead (Pb)-free Halogen-Free
APPLICATIONS
/circle6 Mobile Camera Phones /circle6 Digital Cameras /circle6 PDAs with Built-In Cameras Figure 1.