MM9Z1I638BM2EPR2

Battery Management Overview

The MM9Z1I638BM2EPR2 is a fully integrated intelligent battery monitoring system manufactured by NXP USA Inc. It features an internal MCU with LIN 2.2 protocol support and an MSCAN controller for automotive bus interfacing. The device supports precise current measurement via an external shunt resistor and provides four voltage measurements using internal calibrated resistor dividers or external dividers. It includes an internal temperature sensor for close-proximity battery monitoring, plus four external temperature sensor inputs. The component is housed in a 48-QFN package.

Battery Management Feature Summary

• Integrates a microcontroller unit with LIN 2.2 physical interface and MSCAN protocol controller for automotive communication
• Enables precise current measurement through an external shunt resistor
• Provides multiple voltage measurement capabilities via internal calibrated resistor dividers or external divider configurations
• Includes an internal temperature sensor for proximity battery monitoring and supports multiple external temperature sensor inputs

Battery Management Applications

• Automotive lead-acid battery monitoring systems
• Battery management units requiring LIN and CAN bus integration
• Vehicle energy management controllers
• Smart battery sensors for electric and hybrid vehicles

Battery Management Procurement Notes

This component is officially listed as obsolete and no longer recommended for new designs. Verify availability through authorized distributors only, as stock may be limited to surplus inventory. Ensure compliance with RoHS3 specifications and MSL level 3 handling requirements during procurement and storage. Confirm that the replacement parts MM9Z1J638TM5EP or MM9Z1I638TM5EP are suitable for your application if this part is unavailable.

Battery Management Selection Notes

Select this component for applications requiring integrated battery monitoring with LIN and CAN connectivity. It is suitable for lead-acid battery systems needing precise current and voltage measurement. Consider the obsolete status when designing long-term production systems. Evaluate the recommended replacements MM9Z1J638TM5EP or MM9Z1I638TM5EP for new designs to ensure supply chain stability and updated feature sets.

Battery Management Part Context

The MM9Z1I638BM2EPR2 belongs to the MM9Z1_638 family of intelligent battery monitoring devices from NXP. These components are designed for automotive applications, combining power management IC functions with microcontroller capabilities. The family supports various battery chemistries and communication protocols, enabling comprehensive battery state monitoring and control within vehicle electrical architectures.

Battery Management Replacement Considerations

NXP explicitly recommends MM9Z1J638TM5EP and MM9Z1I638TM5EP as compatible replacements for new designs. These parts offer similar functionality with updated manufacturing processes. Verify pinout compatibility and software migration requirements before switching.

Battery Management FAQ

What communication protocols does the MM9Z1I638BM2EPR2 support?

It supports the LIN 2.2 protocol with its physical interface and includes an MSCAN protocol controller for interfacing with automotive buses.

How many voltage measurement channels are available?

The device features four voltage measurements via internal calibrated resistor dividers and can utilize up to five direct voltage measurements with an external resistor divider.

Is the MM9Z1I638BM2EPR2 still in production?

No, this product is obsolete and no longer recommended for new designs. NXP suggests using MM9Z1J638TM5EP or MM9Z1I638TM5EP instead.