DS2438AZ

Battery Management Overview

The DS2438AZ is a smart battery monitor integrated into an 8-SOIC package. It operates within a supply voltage range of 2.4 V to 10 V and draws a maximum operating current of 50 uA. The device supports temperatures from -40°C to +85°C. Key electrical features include a 10-bit ADC for voltage measurement across a 0 V to 10 V range, an internal temperature sensor with ±2°C accuracy, and coulomb counting capabilities for ampere-hour accumulation. It utilizes the 1-Wire interface for communication.

Battery Management Feature Summary

• Integrates analog-to-digital conversion, non-volatile memory, and unique identification on a single chip
• Supports parasitic power mode operation without external VDD connection
• Provides real-time monitoring of battery voltage, current flow, and ambient temperature
• Includes built-in EEPROM for storing calibration parameters and serial numbers

Battery Management Applications

• Smart battery pack management systems
• Portable electronic devices requiring low-power monitoring
• Medical sensors and consumables
• Remote sensing applications in harsh environments

Battery Management Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with existing 1-Wire master controllers. Check for lead-free compliance status if required by project specifications. Confirm availability through authorized distributors as stock levels vary.

Battery Management Selection Notes

Select this component when a compact solution for battery health monitoring is needed. It eliminates the need for separate ADCs and EEPROMs. Ideal for designs constrained by space and power budgets. Ensure the host system supports the 1-Wire protocol for data exchange.

Battery Management Part Context

This part belongs to the Maxim Integrated family of 1-Wire battery management ICs. It complements other devices like the DS2436 and DS2437 by offering combined sensing and storage capabilities. The series is designed for applications requiring precise battery tracking with minimal external components.

Battery Management Replacement Considerations

DS2438AZ+