EL7512CYZ-T13

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EL7512CYZ-T13 Application Field and Working Principle

The EL7512CYZ-T13 (EL7512) is a DC-DC switching regulator from Intersil Corporation. This includes two programmable pulse-width-modulated (PWM) switching controllers that can be used for a variety of applications, such as DC-DC step-up, step-down and inverters.

The EL7512 operates in a wide input voltage range of 4.5V - 18V. This makes it suitable for various types of portable and distributed power architectures. It also has an adjustable frequency between 400 kHz and 3 MHz, as well as an adjustable soft-start time.

The EL7512 has a fully integrated control solution, including two high-performance, low-noise PWM switching controllers. The first controller is used for step-down applications, and the second for step-up applications. Both controllers feature independent current sensing and voltage regulation control, with a wide feedback range.

The PWM switching controllers also feature a slew-rate-control function, allowing the user to dynamically adjust the current limit at any time. The EL7512 can also be used with an external PWM generator, allowing the user to adjust on-time and/or off-time. This is useful for controlling currents to optimize efficiency.

The EL7512 also features an internal voltage reference option, allowing the user to set a voltage reference to control the output voltage of the switching regulator. This can be used to control an output voltage of a polarity-agnostic load or a voltage divider.

The EL7512 also features a power failure detect (PFD) circuit and a soft start circuit. The PFD feature can be used to detect a low input voltage, which can then be used to safely power down the system and prevent damages. The soft start circuit can be used to control inrush current of capacitive loads.

Overall, the EL7512 is a versatile, flexible and fully integrated switching regulator. With its wide input voltage range, adjustable frequency, adjustable soft-start time and integrated control features, it is suitable for a wide range of applications.

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