MAX14912AKN+

Overview

The MAX14912AKN+ is an octal high-speed high-side power switch IC manufactured by Analog Devices Inc./Maxim Integrated. It features eight independent outputs with a 1:8 input-to-output ratio, housed in a 56-QFN (8x8 mm) package. The device operates on a supply voltage of 1.6V to 5.5V and supports load voltages from 10.5V to 36V. Key electrical parameters include a typical on-resistance of 110 mΩ and a fixed current limit of 870 mA. It integrates comprehensive fault protection including over-temperature, over-voltage, UVLO, open-load detection, and status flags, functioning within a temperature range of -40°C to 125°C.

Feature Summary

• Integrates eight high-side switches with push-pull driver capability for efficient power distribution.
• Includes advanced diagnostic features such as open-load detection and status flags for system monitoring.
• Provides robust fault protection mechanisms covering over-temperature, over-voltage, and under-voltage lockout conditions.

Applications

• Industrial power distribution systems
• IO-Link compatible devices
• Automotive electronic control units

Procurement Notes

Verify the specific suffix 'KN+' against the manufacturer's official datasheet to confirm pinout and thermal pad configuration. Ensure the procurement channel provides valid RoHS compliance documentation. Cross-reference the 56-QFN package dimensions with your PCB footprint library to prevent assembly errors during surface mount installation.

Selection Notes

Select this component when an octal high-side switching solution with integrated diagnostics is required. It is suitable for applications needing a single SPI or parallel interface to control multiple loads. Consider the 110 mΩ on-resistance and 870 mA current limit to ensure adequate thermal performance for the expected load currents without external heat sinking.

Part Context

This part belongs to the MAX14912 family of octal high-speed high-side switches. It is designed for industrial and automotive environments requiring reliable power management. The device simplifies board design by integrating protection circuits that would otherwise require discrete components, reducing overall system complexity and component count.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX1491x series if availability is constrained. Verify that any substitute maintains the same 56-QFN package and electrical specifications, particularly the 1:8 ratio and fault protection features.

FAQ

What is the maximum continuous current per channel?

The maximum current limit is specified as 870 mA per channel.

Does the device support open-load detection?

Yes, the MAX14912AKN+ includes built-in open-load detection capabilities.