The EUP2983 is a constant current boost converter specially designed for driving white LEDs with wide input range. The unique converter topology provide a load voltage which can be greater or less tha
EUP2983-White LED Driver For Buck-Boost Application
DESCRIPTION
The
EUP2983 is a constant current boost converter specially designed for
driving white LEDs with wide input range. The unique converter topology
provide a load voltage which can be greater or less than the input
voltage. With the tightly regulated load current, the EUP2983 allows
series connection with multiple strings of the white LEDs.
The
brightness of the LEDs can be adjusted through a voltage level on the
CTRL pin or by applying a PWM signal to CTRL pin. 1MHz current-mode,
pulse-width modulated (PWM) operation allows for small input and output
capacitors and a small inductor while minimizing ripple on the input
supply/battery. Programmable soft-start eliminates inrush current during
startup.
The EUP2983 is available in a space-saving, 8-pin 3mm x 3mm TDFN package.
FEATURES
• 6V to 25V Input Range
• 32V (max) Output with Overvoltage Protection
• Up to 90% Efficiency
• Flexible Analog or PWM Dimming Control
• Internal High Power MOSFET Switch
• 1MHz PWM Operation
• Small, Low-Profile Inductors and Capacitors
• 3mm × 3mm TDFN-8 Package
• RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
• 7~10 inch White LED Display Backlighting
• 12V Automotive Display System
• PDVD and Subnotebooks
• LED Lighting


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