MAX17201X+

Overview

The MAX17201X+ is a standalone ModelGauge m5 fuel gauge IC designed for single-cell lithium battery monitoring. It operates within a supply voltage range of 2.3 V to 4.9 V and delivers an output voltage of 1.8 V with a maximum output current of 50 mA. The device functions at a quiescent operating current of 18 µA, ensuring minimal power drain during standby or active monitoring phases. It utilizes a 15-ball Wafer Level Package (WLP) measuring 1.6 mm by 2.4 mm, suitable for surface-mount installation. The component supports an I2C interface for data communication and registers a working temperature range from -40°C to +85°C.

Feature Summary

• Integrates the ModelGauge m5 algorithm to provide high-precision state-of-charge estimation through combined coulomb counting and voltage-based long-term stability.
• Features integrated SHA-256 authentication and unique 64-bit ID to prevent counterfeit batteries and ensure secure cell identification.
• Includes internal temperature measurement capabilities alongside support for external thermistor inputs via auxiliary pins for comprehensive thermal monitoring.
• Provides non-volatile memory configuration allowing independent operation without complex host initialization or continuous software updates.

Applications

• Single-cell lithium-ion or lithium-polymer battery pack monitoring in portable electronics
• Battery management systems requiring precise remaining runtime and charge time estimation
• Devices needing cycle life prediction and capacity degradation tracking
• Secure battery applications requiring hardware-level anti-counterfeit verification

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm package type and temperature grade. Ensure the procurement channel provides valid traceability for this PMIC category. Confirm RoHS compliance status directly with the manufacturer's latest certification records before integration into regulated assemblies.

Selection Notes

Select this component when designing for single-cell architectures requiring high accuracy without extensive host-side calibration. The WLP footprint suits space-constrained layouts where TDFN alternatives are unsuitable. Verify that the system I2C bus voltage levels align with the IC's 1.8 V output specifications. Consider the 18 µA quiescent current impact on overall system standby performance requirements.

Part Context

This part belongs to the Maxim Integrated ModelGauge m5 family, now under Analog Devices. It serves as a standalone solution for accurate battery fuel gauging, distinct from multi-cell variants like the MAX17205. The X suffix typically denotes the WLP package variant, differentiating it from the G-series TDFN packages within the same functional family.

Replacement Considerations

Publicly confirmed substitutes include other ModelGauge m5 series parts such as the MAX17211X for similar single-cell applications. Cross-reference pinouts and algorithm versions carefully when replacing older generations like the MAX17047.