Product Overview

PT4115B89E is a high-efficiency LED constant current driver designed for wide voltage input (6-30V DC), supporting 1.2A high-brightness output. With SOT89-5 package, it features overheat protection and multiple dimming modes, widely used in automotive lighting, industrial equipment, and smart home applications.

Key Features

• Wide Input Voltage Range: Supports 6-30V DC input, compatible with various power sources.
• High Brightness Output: Maximum 1.2A output current drives multiple series-connected LEDs for high-power lighting.
• High Conversion Efficiency: Utilizes synchronous rectification technology with up to 97% efficiency, reducing energy consumption.
• Flexible Dimming Solutions: Supports analog dimming (0.5-2.5V) and PWM dimming (100Hz-20kHz) with 1% accuracy.
• Multi-Protection Mechanisms: Built-in overheat protection (160℃), overvoltage protection, and LED open-circuit protection ensure system stability.

Technical Specifications

Typical Applications

• Automotive Lighting: Compatible with vehicle power supplies (12-24V), it stably drives car headlights, turn signals, and interior lights for safe driving.
• Industrial Equipment: Supports wide voltage input for factory lighting and machinery indicators in harsh environments.
• Smart Home: Integrates with smart control systems to enable stepless dimming and color temperature adjustment for lamps, enhancing user experience.
• Outdoor Lighting: High thermal dissipation design (45℃/W thermal resistance) ensures long-term stability in streetlights and garden lights.
• Commercial Lighting: Supports PWM dimming for ambiance lighting in malls and hotels, with a dimming ratio up to 5000:1.

Why Choose PT4115B89E?

• High Reliability: RoHS-certified with multiple protections, suitable for long-term high-load applications.
• Cost-Effective Solution: Requires only 4 external components, saving PCB space and material costs.
• Flexible Compatibility: Supports analog/PWM dimming for various LED types and control systems.
• Thermal Advantage: SOT89-5 package with thermal pad design reduces thermal resistance for enhanced stability.
• Long Lifespan: Low standby power (95μA) extends device longevity and reduces maintenance costs.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic
components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.