The LM3556TMX from Texas Instruments is a highly efficient, dual-channel LED driver designed to manage the power requirements of flash LEDs in portable devices. It is a versatile solution that provides a high level of performance for mobile phone cameras, as well as other applications requiring a high-intensity flash such as digital still cameras and video recorders.

Key Features

• Input Voltage Range: The LM3556TMX operates over a wide input voltage range from 2.7V to 5.5V, making it suitable for a variety of battery-powered applications.
• Dual LED Outputs: It offers two independently controlled LED drivers for simultaneous or independent operation, allowing for both flash and torch functionalities.
• High Efficiency: With an efficiency rating of up to 90%, this driver conserves power, thereby extending battery life in portable devices.
• Adjustable Output Current: The output current can be programmed up to 1.2A for each LED channel, enabling it to drive a wide range of LEDs with different power requirements.
• Small Footprint: The device comes in a compact, 14-pin, 2.5x2.5mm WSON package, which is ideal for space-constrained applications.
• Protection Features: It incorporates over-voltage, over-temperature, and LED short-circuit protection, ensuring safe operation under various conditions.

Applications

The LM3556TMX is highly suited for portable devices that require high brightness LED flash. It is widely used in:

• Mobile Phones
• Digital Still Cameras
• Portable Video Recorders

Product Summary

The LM3556TMX is a robust and flexible solution from Texas Instruments, tailored for the demanding needs of high-intensity flash LEDs. Its dual-channel output, high efficiency, and comprehensive protection features make it an ideal choice for designers looking to enhance the multimedia capabilities of their portable devices with a reliable and powerful LED flash driver.