MAX16948AGEE/V+

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MAX16948AGEE/V+ application field and working principle

The MAX16948AGEE/V+ power management integrated circuit (PMIC) from Maxim Integrated is designed for automotive applications. It is a four-phase buck converter that is compatible with the Advanced High-Speed Bus (AHSB) specification and can operate at up to 3MHz. It is also capable of helping to fulfil the requirements of Energy Star and/or Galaxy regulation.

Applications

The MAX16948AGEE/V+ PMIC is used in automotive applications such as:

• Fan control
• Halogen or LED lighting control
• Automotive infotainment
• HVAC
• Power windows
• Body control
• Woofer control

Features

The MAX16948AGEE/V+ provides four integrated buck converters with a single phase shifter, which makes it ideal for small automotive applications. Its features include:

• Four-stage buck converters
• Internal high-side MOSFETs
• Up to 3MHz operation
• Integrated phase shift
• Integrated AHSB signal conditioning
• Thermal protection
• Overcurrent and overtemperature protection
• Desaturation protection
• Overvoltage protection
• Low output voltage ripple

Working principle

The MAX16948AGEE/V+ is based on the buck regulator topology. In a typical application, an inductor and a capacitor are used to provide power transfer to the output. The buck converter also includes a power switch (usually a MOSFET) to regulate the output voltage. The control block takes the input voltage and measures it along the inductor current. Based on the measurement, it turns on and off the power switch accordingly to keep the inductor current near a certain level, which results in maintaining a constant output voltage.

The MAX16948AGEE/V+ is designed to provide an efficient way to control the currents that are critical for automotive systems. It has an on-chip phase-shift feature, which allows it to synchronize multiple buck converters in order to reduce ripple and increase power savings. The device also has an integrated Advanced High-Speed Bus (AHSB) interface, which allows it to easily communicate with other components in the automotive system.

Conclusion

The MAX16948AGEE/V+ PMIC from Maxim Integrated is a compact, efficient and reliable power management solution that can be used in automotive applications. It features four integrated buck converters and an on-chip phase-shift feature, which allow it to operate at up to 3MHz and synchronize multiple buck converters. The device also has an integrated AHSB interface, which makes it easy to communicate with other components in the system.

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