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The MAX16814AUP is an LED driver IC manufactured by Analog Devices (formerly by Maxim Integrated). It is designed to drive high-brightness LEDs (HBLEDs) efficiently and is typically used in applications such as automotive lighting, general lighting, and displays.

Key Features of the MAX16814AUP:

• Type: LED Driver IC
• Package Type: TSSOP-20 (Thin Shrink Small Outline Package with 20 pins)
• Output Current: Capable of driving up to 1 A (adjustable output current via external resistors) for LED arrays.
• Input Voltage Range: The IC operates over a wide input voltage range of 6 V to 40 V, making it suitable for use in various power supply environments.
• Constant-Current Regulation: The MAX16814AUP is designed to provide precise constant current for LED driving, ensuring that LEDs receive the required current for consistent brightness and performance.
• PWM Dimming: The device supports PWM dimming, allowing users to adjust the brightness of the LEDs by controlling the frequency and duty cycle of the PWM signal.
• Overvoltage and Overcurrent Protection: The IC includes built-in protection features such as overvoltage, overcurrent, and thermal shutdown to prevent damage to the IC and the LEDs.
• Efficiency: High efficiency (up to 95%) is achieved due to its buck converter topology, which reduces power loss and heat generation, making it suitable for applications requiring energy-efficient LED driving.
• Soft-Start: Includes soft-start functionality to limit inrush current during startup, improving system reliability and reducing the stress on components.
• External Components: The MAX16814AUP requires a few external components, including inductors, capacitors, and resistors, for the feedback loop and current sensing to set the output current.

Benefits:

1. Efficient LED Driving: The buck converter topology allows efficient conversion from the input voltage to the required voltage for driving LEDs, reducing power loss and heat dissipation.
2. Wide Input Voltage Range: The device can operate with input voltages from 6 V to 40 V, making it flexible for various power supply configurations, including automotive and industrial systems.
3. High-Precision Current Control: Provides accurate current regulation, ensuring the LEDs receive the correct current for stable operation and consistent brightness.
4. Integrated Protection Features: Built-in overvoltage, overcurrent, and thermal protection ensure that the driver and LEDs are protected from potential damage due to faults or excessive operating conditions.

Common Applications:

• Automotive Lighting: Used in automotive lighting systems, including headlights, tail lights, interior lighting, and indicator lights, where precise current control and dimming capabilities are important.
• General LED Lighting: Ideal for LED-based general lighting, including streetlights, downlights, and other architectural lighting applications.
• Signage and Displays: Used in LED displays and signage, where dimming and high-brightness control are crucial for visibility.

Typical Application Circuit:

The MAX16814AUP is often used in configurations where it drives a string of LEDs. An external inductor is used to store and transfer energy during the switching process. A feedback loop regulates the output current through a sense resistor placed in series with the LEDs, ensuring accurate current control.

Would you like additional details on application circuits, datasheet, or a specific use case for integrating the MAX16814AUP into your system?