MAX11081IUU+

Overview

The MAX11081IUU+ is a battery management integrated circuit designed for monitoring lithium-ion battery packs. It supports configurations with one to twelve series-connected cells. The device operates within a supply voltage range of 6V to 72V and includes overvoltage and undervoltage fault protection mechanisms. It features a 3.3V output capable of sourcing up to 50mA. The component is housed in a 38-TSSOP package and is rated for an operating temperature range from -40°C to +105°C.

Feature Summary

• Monitors battery cell voltages across multi-cell lithium-ion packs
• Provides hardware-based overvoltage and undervoltage fault detection
• Includes internal charge management functionality for single-cell applications

Applications

• Lithium-ion battery pack monitoring in electric vehicles
• Energy storage system cell balancing and protection
• Portable electronic device battery management

Procurement Notes

Verify the specific suffix 'IUU+' against the official Analog Devices datasheet to confirm the exact temperature grade and package variant. Ensure compatibility with AEC-Q100 automotive qualification requirements if used in automotive environments. Cross-reference the manufacturer's part numbering guide to validate that the ordering code matches the intended functional specifications and pinout configuration.

Selection Notes

Select this component when high-voltage battery pack monitoring is required with integrated fault protection. Consider the 38-pin TSSOP package constraints for PCB layout. Evaluate the need for external components based on the specific cell count and desired protection thresholds. Verify that the operating voltage range aligns with the maximum series cell count of the target application.

Part Context

This part belongs to the MAX11080/MAX11081 family of high-voltage battery monitors. The MAX11081 variant specifically integrates charge management capabilities, distinguishing it from the passive monitoring-only MAX11080. Both devices share similar fault detection architectures but differ in active control features. The family targets robust battery protection in demanding industrial and automotive environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.