MAX1570ETE+T

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The MAX1570ETE + T is a switch mode power supply (SMPS) controller used in LED drivers. It is a high performance power supply unit designed to increase LED LED efficiency for automotive, consumer and industrial applications. The MAX1570ETE + T features an integrated high-voltage controller operating from a 5.0V input as well as an advanced features and functions designed to improve overall LED efficiency.

Application Field

The MAX1570ETE + T is used in automotive, consumer, and industrial LED drivers. It is designed to increase efficiency of LED applications in these fields by providing a high efficiency and reliable power delivery circuit. The MAX1570ETE + T also offers a wide operating range with a wide input voltage range of 10 to 60V, as well as current-mode control and constant off-time control modes that allow for even more control over the LED efficiency.

In automotive applications, the MAX1570ETE + T power supply can be used to improve the efficiency and extend the life of body-lighting such as headlights, taillights, fog lamps and more. It can also be used to power automotive displays such as instrument cluster backlighting, LCD and OLED displays, as well as interior lighting.

In consumer applications, the MAX1570ETE + T can be used to increase the efficiency of smartphone or tablet displays, as well as Power-over-Ethernet (PoE) applications for home security systems.

In industrial applications, the MAX1570ETE + T can be used to boost efficiency of LED lighting in both residential and commercial lighting applications. It can also be used in industrial control systems, high-efficiency lighting systems, machine vision systems and data acquisition systems.

Working Principle

The MAX1570ETE + T power supply unit operates in a switch mode power supply (SMPS) configuration, where the high voltage input is converted to a higher voltage output. The MAX1570ETE + T is based on a buck topology, where the primary switch is a high-speed power MOSFET, and the controller regulates the output voltage by controlling the duty cycle of the power MOSFET. The MAX1570ETE + T features an integrated skip-clock feature, where the primary switch is turned off for a period of time that is adjustable via external components. This helps reduce switching losses and noise while improving efficiency.

The MAX1570ETE + T also features a current-mode control, which is a form of topology regulation used to regulate the output voltage. In this mode, the MAX1570ETE + T’s built-in intelligent current feedback system senses changes in output current and adjusts the duty cycle of the power switch accordingly. This helps to maximize efficiency by reducing the amount of energy wasted in switching losses. The MAX1570ETE + T also features a constant off-time control (COT) mode, which helps to improve efficiency by reducing the amount of time it takes for the primary switch to turn off.

The MAX1570ETE + T also features a variety of additional features and functions to help improve efficiency and reliability, including an integrated non-invasive current-sense amplifier and an adjustable soft-start control that helps reduce in-rush current at start-up and shutdown. Additionally, the MAX1570ETE + T features an integrated short-circuit protection, thermal shutdown protection and under-voltage lockout protection for improved system protection and reliability.

The MAX1570ETE + T is an ideal power supply unit for LED drivers and other LED applications due to its high efficiency and a wide range of features and functions. Its integrated skip-clock, current-mode control and constant off-time control modes help to maximize system efficiency and its integrated protection features help to extend the life of the system. Additionally, its wide operating range of 10 to 60V allows it to be used in a variety of applications. It is a perfect choice for automotive, consumer and industrial LED driver applications.

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