The ZXLD1615ET5 is a constant current LED driver from Zetex Semiconductors (now Diodes Incorporated). It's designed to drive high-brightness LEDs (HBLEDs) efficiently and reliably. This device integrates a high-side current sense and a dimming input, enabling precise control of LED brightness.

Applications

• LED Lighting
• Backlighting
• Signage
• Automotive Lighting
• General Illumination

Features

• Constant Current LED Driver
• High-Side Current Sense
• PWM Dimming Input
• Wide Input Voltage Range
• Over-Voltage Protection (OVP)
• Short-Circuit Protection
• Thermal Shutdown

Benefits

• Precise control of LED brightness
• Efficient LED driving
• Protection against fault conditions
• Versatile dimming capabilities
• Long LED lifespan

Additional Details

The ZXLD1615ET5 uses a constant current control scheme to drive the LED(s), ensuring consistent brightness and preventing damage from overcurrent. The high-side current sense allows for simple and accurate current regulation. The PWM dimming input enables precise control of the LED brightness using a PWM signal. The wide input voltage range allows it to be used in a variety of applications. The over-voltage protection, short-circuit protection, and thermal shutdown features protect the LED driver and the LEDs from damage in case of a fault condition. The datasheet provides detailed information on the operating characteristics, including the input voltage range, output current range, dimming frequency, and protection thresholds. The typical switching frequency is between 500kHz and 1MHz. This device is commonly used in applications where precise control of LED brightness and protection against fault conditions are critical.