Description

The EUP8207-84ADIR is a constant current step-up converter specially designed for driving white LEDs. The step-up converter topology allows series connection of the white LEDs, ensuring identical LED currents for uniform brightness. This model can drive up to 6 LEDs in series. The brightness of the LEDs can be adjusted through a voltage level on the CTRL pin or by applying a PWM signal to the CTRL pin.

Specifications and Features

Specifications:

• Input Range: 2.6V to 5.5V
• Output: Up to 26V (max) with Overvoltage Protection
• Efficiency: Up to 87%
• Shutdown Current: <1µA
• PWM Operation: Fast 1MHz
• Package Size: 3mm× 3mm DFN-8
• Compliance: RoHS Compliant and 100% Lead (Pb)-Free

Features:

• Flexible Analog or PWM Dimming Control
• Internal High Power 30V MOSFET Switch
• Small, Low-Profile Inductors and Capacitors

Application Scenarios

This model is suitable for various applications, including:

• Cell Phones and Smart Phones
• PDAs, Palmtops, and Wireless Handhelds
• e-Books and Subnotebooks
• White LED Display Backlighting

Comparison

The EUP8207-84ADIR offers the following advantages:

• Constant current step-up converter for driving white LEDs
• Uniform brightness with series connection of LEDs
• Adjustable LED brightness through voltage level or PWM signal
• Wide input range of 2.6V to 5.5V
• High efficiency up to 87%
• Compact package size of 3mm× 3mm DFN-8

No specific disadvantages have been identified for the EUP8207-84ADIR model.