ADL5535ARKZ-R7

The MAX5974AETE+T is a cutting-edge Active-Clamped, Spread-Spectrum PWM (Pulse Width Modulation) Controller from Maxim Integrated Products, tailored for use in Power-over-Ethernet (PoE) powered devices (PDs). This advanced controller is specifically designed for forward converters with wide input voltage ranges, ensuring high efficiency and reliability in demanding applications.

Key Highlights:

• Active Clamping Technology: The MAX5974AETE+T incorporates active clamping, which recycles the transformer’s magnetizing energy, thereby enhancing overall efficiency and reducing power loss.

• Spread-Spectrum PWM: By implementing spread-spectrum PWM, the device minimizes electromagnetic interference (EMI), making it suitable for sensitive electronic environments.

• Programmable Switching Frequency: The controller offers a programmable switching frequency range, providing designers with the flexibility to optimize performance and efficiency based on specific application requirements.

• Output Regulation Without Optocoupler: The MAX5974AETE+T eliminates the need for an optocoupler for output regulation, simplifying the circuit design and reducing component count.

• Enhanced Light-Load Efficiency: The device features frequency foldback under light-load conditions, reducing switching losses and improving efficiency.

• Comprehensive Protection Features: The MAX5974AETE+T includes protection features such as output short-circuit protection, reverse current limit, and an internal Zener clamp, ensuring safe and reliable operation.

• Compact Packaging: The device is housed in a compact 16-pin TQFN-EP package, making it suitable for space-constrained applications.

• Wide Operating Temperature Range: The MAX5974AETE+T is rated for operation over a temperature range of -40°C to +85°C, ensuring reliability in a variety of environments.

Applications:

The MAX5974AETE+T is ideal for use in high-power PoE PD applications beyond the IEEE 802.3af/at standards. It is particularly suited for active-clamped forward DC-DC converters, making it an excellent choice for IP phones, security cameras, wireless access points, and other PoE-enabled devices.

In summary, the MAX5974AETE+T combines advanced active clamping, spread-spectrum PWM, and programmable switching frequencies to deliver high efficiency, low EMI, and reliable operation in PoE PD applications. Its compact packaging and wide operating temperature range make it a versatile and robust solution for a range of demanding applications.