TLC5955DCAR

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TLC5955DCAR is an LED driver with color management features. This component has a pulse width modulator (PWM) with dual channels and a low power current reference that can be adjusted to a desired current level. Its color management can be configured to adjust the LED brightness and power efficiency. It is designed for automotive applications.

Application Field

The TLC5955DCAR is designed to drive automotive LEDs. It is capable of providing up to 8 A peak current and up to 16 A peak current, depending on the board configuration. It helps avoid overheating of the LEDs by controlling the current, allowing for a uniform brightness and preventing damage from overdriving or low current levels.

The component is suitable for automotive applications such as dashboards, lighting, and even in instrument clusters to control the brightness and range of visible colours. It can also be used for interior and exterior lighting as well as signs. The component has built-in thermal protection, thus ensuring safe operation in any situation.

Working Principle

The TLC5955DCAR is based on a dual PWM architecture, with a low power reference current that can be adjusted up to the desired current level. It uses a fixed resistor in series with the LEDs, and the current is adjusted by pulsing the thermally protected PWM blocks. The component features adjustable linear and logarithmic color management, allowing designers to create a range of effects that are tailored to the application.

The component also features an open LED (OLED) protection circuit with a configurable timeout, allowing the component to detect and eliminate open LED faults. Its switcher allows for high-resolution brightness adjustment, providing more precise control over LED brightness. The component is designed for automotive applications, so the wide input voltage range makes it suitable for a variety of environments.

TLC5955DCAR is suitable for various automotive LED applications and provides a cost-effective solution for controlling colour and brightness. Its adjustable linear and logarithmic colour management, open LED protection, and adjustable PWM ripple control allow designers to quickly and easily create a range of colourful and efficient designs. The component’s small size and high efficiency make it an attractive choice for vehicle stylists, who can create their desired lighting effects quickly and cost-effectively.

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