Solar LED Driver YX8018

Overview

The YX8018 is a solar LED driver designed for stable lighting of LEDs, utilizing solar energy to charge a rechargeable battery and power the LEDs at night. It features automatic switching between charging and lighting modes.

Features

• High efficiency: 80-90%
• Minimal external components: requires only one inductor
• Low voltage battery protection function
• Adjustable current with an inductor
• Package: TO-94

Pin Configuration

Application Examples

Application 1: 1 x 1.25V rechargeable battery

1.1 LED (white, blue, green)

Circuit diagram showing the YX8018 connected to a 1.25V battery, solar panel, and LED. This configuration uses a CDS sensor for light control.

Figure 1-1 Using CDS

Circuit diagram showing the YX8018 connected to a 1.25V battery, solar panel, and LED. This configuration does not use a CDS sensor.

Figure 1-2 Do not use CDS

2.7 Color Illumination LED

Circuit diagrams illustrating the YX8018 used for driving color illumination LEDs with a 1.25V rechargeable battery.

Performance Data (1.25V)

Application 2: 2 x 1.25V rechargeable battery

Circuit diagrams showing the YX8018 used with two 1.25V rechargeable batteries for LED driving.

Performance Data (2.5V)

Switch Connection

Circuit diagrams illustrating different switch connection configurations for the YX8018.

Mechanical Dimensions

Diagram showing the physical dimensions of the TO-94 package, with a table detailing the measurements for each part of the package.