مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) آی‌سی درایور ال‌ای‌دی

Product Attributes

Introduction

LY3105A is a single-chip LED driver controller with multiple selectable modes, integrating a lithium battery charge management module, LED function control module, and protection module. Shutdown standby current is only 5uA. The chip features a charging current of 0.5A and a maximum output current of 1.5A; applications requiring more than 1.5A can be achieved by externally expanding a PMOS transistor. The lighting function cycle modes are: 100% - 25% - Strobe - Off.

Features

• Fully integrated single-chip control
• 100% - 25% - Strobe - Off cycling mode
• 0.5A fixed charging current
• Built-in MOSFET, up to 1.5A drive current
• Single or dual LED indication support
• 2.3A output overcurrent protection
• Preset 4.2V battery full-charge voltage
• 2.6V battery over-discharge protection
• Overcurrent protection, short-circuit protection, thermal protection
• 0V battery charging support
• SOT23-6 package

Applications

• Multi-function high-intensity flashlight
• Emergency light
• Outdoor lighting fixture