The AP1602B is a high-performance, constant-current LED driver designed for offline lighting applications. It operates in boundary conduction mode (BCM) to achieve high efficiency and excellent EMI performance. The AP1602B integrates comprehensive protection features to ensure robust and reliable operation in various lighting conditions.

Applications

• LED Lighting
• LED Bulbs
• LED Tube Lighting
• LED Downlights
• LED Street Lights

Features

• High Efficiency
• Boundary Conduction Mode (BCM) Operation
• Accurate Constant Current Control
• Wide Input Voltage Range
• Built-in Over Voltage Protection (OVP)
• Built-in Over Current Protection (OCP)
• Built-in Open Loop Protection
• Built-in Short Circuit Protection
• Built-in Thermal Foldback Protection

Benefits

• High Efficiency: BCM operation minimizes switching losses and maximizes overall efficiency, reducing energy consumption.
• Stable LED Current: Accurate constant current control ensures consistent brightness and long lifespan of the LEDs.
• Robust Protection: Comprehensive protection features prevent damage to the driver and the LEDs under various fault conditions.
• Simplified Design: The integrated features minimize the external component count, simplifying the design process and reducing the PCB size.
• High Reliability: Designed for long-term reliability in demanding lighting applications.

Additional Details

The AP1602B utilizes primary-side regulation, eliminating the need for an optocoupler and simplifying the feedback network. It is designed to meet international standards for harmonic current emissions and EMI. The device also features a thermal foldback function, which reduces the output current at high temperatures to prevent overheating and ensure long-term reliability. It is commonly available in a SOP-7 package.