ON Semiconductor CAT4137TD-T3 LED Driver

The ON Semiconductor CAT4137TD-T3 is a high-efficiency, DC-DC step-up converter designed specifically for driving multiple LEDs in series. As a member of ON Semiconductor's extensive portfolio of power management devices, this LED driver integrates a range of features that enhance performance in various lighting applications.

Key Features

• High Output Voltage: The CAT4137TD-T3 is capable of delivering an output voltage up to 30V, making it suitable for driving LED strings with multiple LEDs in series.
• Adjustable Output Current: Users can set the output current up to 750mA, ensuring precise control over the brightness and consistency of the LED lighting.
• High Efficiency: With an efficiency rating of up to 94%, this LED driver minimizes power loss and heat generation, which is crucial for maintaining the longevity and reliability of both the driver and the LEDs.
• Low Shutdown Current: In its shutdown mode, the CAT4137TD-T3 consumes a mere 0.1µA, contributing to the energy-saving characteristics of the overall design.
• Soft-Start Capability: The built-in soft-start feature limits inrush current during startup, which helps prevent stress on the LEDs and extends their lifespan.
• Thermal Shutdown Protection: To safeguard against overheating, the device includes thermal shutdown protection that automatically disables the output if the internal temperature exceeds safe operating limits.

Applications

The CAT4137TD-T3 is versatile and can be used in a variety of applications, including:

• Portable and battery-powered devices
• Backlighting for LCD displays
• General LED lighting solutions
• Automotive and avionic lighting
• Industrial and architectural lighting

Package and Availability

Offered in a compact 5-lead TSOT-23 package, the CAT4137TD-T3 is designed for space-constrained applications. Its small footprint and low profile make it an ideal choice for portable electronics and other applications where board space is at a premium. The device is available in tape and reel format, facilitating easy integration into automated manufacturing processes.

With its combination of high efficiency, adjustable output current, and robust protection features, the ON Semiconductor CAT4137TD-T3 LED driver is an excellent choice for designers looking to enhance the performance and reliability of their LED lighting systems.