EUP3618 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – Charge Pump Flash LED Driver with Safety Timer

EUP3618
Charge Pump Flash LED Driver
with Safety Timer
DESCRIPTION
The EUP3618 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 regulator.
The EUP3618 has two operation modes: Flash mode
and Movie mode. In Flash mode, the EUP3618 is
capable of delivering up to 700mA. A safety timer is
also included to ensure the LED can not be on
indefinitely and overheat.
The EUP3618 is available in a 10-pin TDFN package.
FEATURES
Input Voltage Range — 2.7V to 5.5V
Flash and Movie — Two Selectable Modes
Up to 700mA Output Current — Flash Mode
Flash Mode Safety Timer Shut-Off
1X and 2X Automatic Mode for High
Efficiency
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 Package
RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
APPLICATIONS
Mobile Camera Phones
Digital Cameras
PDAs with Built-In Cameras
Typical Application Circuit
DS3618 Ver1.0 Nov. 2012
Figure 1.
1