DS2703G+T&R

Battery Management Overview

The DS2703G+T&R is a SHA-1 Battery Pack Authentication IC designed for lithium-ion battery security. It operates on the Dallas 1-Wire interface with standard and overdrive communication modes. The device is directly powered by the VPULLUP line, supporting operation at voltages as low as 2.7V. It features a unique 64-bit serial number and includes a thermistor multiplexer for temperature monitoring. The component is housed in an 8-pin Max-8 package and functions within a temperature range of -20°C to +70°C.

Battery Management Feature Summary

• Implements Secure Challenge and Response Authentication using the SHA-1 algorithm for battery pack identification.
• Directly powered by the 1-Wire interface bus without requiring separate power supplies.
• Contains a unique 64-bit serial number assigned during manufacturing.

Battery Management Applications

• 2.5G/3G Wireless Handsets
• Personal Digital Assistants (PDAs)
• Handheld or Notebook Computers and Terminals
• Digital Still and Video Cameras

Battery Management Procurement Notes

Verify the specific suffix 'G' indicates the lead-free RoHS-compliant variant and 'T&R' denotes tape-and-reel packaging. Confirm the manufacturer source is Analog Devices Inc. or Maxim Integrated. Ensure the part matches the Max-8 package dimensions and 1-Wire interface requirements for your design.

Battery Management Selection Notes

Select this component when cryptographic authentication of lithium-ion batteries is required for portable devices. It is suitable for applications needing secure identification via SHA-1. Consider the 1-Wire interface compatibility and the low-voltage operation capability starting at 2.7V for system integration.

Battery Management Part Context

This component belongs to the DS2703 series of battery management ICs focused on security. It is manufactured by Analog Devices Inc., which acquired Maxim Integrated. The device addresses the need for authenticating authorized battery packs in consumer electronics to prevent counterfeit usage.

Battery Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing 1-Wire host controllers if considering alternative authentication ICs.