MAX17851AUP/V+

Overview

The MAX17851AUP/V+ is an automotive-grade SPI to UART bridge monitor manufactured by Analog Devices Inc./Maxim Integrated. It translates communication from SPI format to universal asynchronous receiver transmitter (UART) protocols for battery management systems. The device operates with a supply voltage range of 2.375V to 5.5V and features an operating temperature range of -40°C to 125°C. It holds AEC-Q100 qualification for automotive applications. The component functions as a safety monitoring bridge, converting high-voltage battery management interface signals into standard UART data streams for system integration.

Feature Summary

• Translates SPI communication formats to UART protocols for battery management
• Automotive-grade design with AEC-Q100 qualification
• Functions as a safety monitoring bridge for high-voltage systems

Applications

• High-voltage battery management systems
• Automotive electronic control units
• Battery monitoring interfaces

Procurement Notes

Verify the specific suffix 'T' or absence thereof against the manufacturer's official ordering guide, as packaging variations may exist. Confirm AEC-Q100 qualification status directly with Analog Devices documentation. Ensure the source document explicitly lists this part number as available in your region, as distributor availability varies. Cross-reference the pinout and electrical specifications with the latest datasheet revision to avoid integration errors.

Selection Notes

Select this component when SPI-to-UART translation is required for automotive battery management. Verify that the 2.375V to 5.5V supply range matches the system power architecture. Ensure the -40°C to 125°C operating temperature covers the intended environmental conditions. Confirm compatibility with the target UART baud rates and protocol requirements before procurement.

Part Context

This component belongs to the Maxim Integrated battery management family, now under Analog Devices. It serves as a specialized interface bridge rather than a primary cell balancing IC. The device addresses the need for secure communication between high-voltage battery stacks and lower-voltage host controllers in electric vehicles and hybrid systems.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation. Consult Analog Devices official resources for direct replacements or pin-compatible alternatives within the same product line.