MAX14917AFM+T

Overview

The MAX14917AFM+T is an industrial octal high-side switch manufactured by Analog Devices Inc./Maxim Integrated. It integrates eight independent high-side switches within a single package, designed for robust power distribution in demanding environments. The device features a compact 48-FCQFN (6x6) surface-mount package suitable for space-constrained applications. It operates with a supply voltage range of 2.5V to 5.5V and supports load voltages from 10V to 36V. Each channel provides a minimum continuous current of 700mA with a typical on-resistance of 120 milliohms. The component includes comprehensive protection mechanisms such as fixed current limit, over-temperature shutdown, under-voltage lockout, and open-load detection.

Feature Summary

• Integrates eight independent high-side switches for efficient multi-rail power distribution
• Includes integrated fault protection features including current limiting and thermal shutdown
• Supports SPI and parallel interface configurations for flexible control options
• Features open-load detection capability for diagnostic monitoring

Applications

• Industrial automation systems requiring multiple isolated power rails
• Automotive electronic control units needing robust high-side switching
• Test and measurement equipment with complex power distribution needs
• Telecommunications infrastructure utilizing dense power management architectures

Procurement Notes

Verify the complete part number including suffixes to ensure correct temperature grade and packaging configuration. Confirm that the 48-FCQFN footprint matches your PCB design constraints. Check for any specific ordering restrictions or lead times associated with this industrial-grade component. Ensure compatibility with your system's logic voltage levels for the SPI or parallel interface signals before procurement.

Selection Notes

Select this component when an octal high-side switch solution is required for industrial applications. Consider the 120 milliohm on-resistance for efficiency calculations and thermal management. Evaluate the need for open-load detection and fault reporting capabilities inherent to this device. Compare against lower-channel-count alternatives if fewer outputs are sufficient for your design requirements.

Part Context

This part belongs to the MAX1491x family of industrial high-side switches from Maxim Integrated. It complements other variants like the MAX14916 and MAX14919 which offer different channel counts and current ratings. The family shares common interface protocols and protection features, allowing for scalable design approaches across various power distribution architectures within the same product line.

Replacement Considerations

The MAX14916AFM+T serves as a related alternative within the same family, offering four channels instead of eight. Designers requiring fewer outputs may consider this variant for potential cost or space optimization while maintaining similar interface and protection characteristics.