DS2703U+

Battery Management Overview

The DS2703U+ is a battery management integrated circuit designed for SHA-1 battery pack authentication. It operates within a supply voltage range of 2.7 V to 5.5 V and consumes a typical operating current of 1 uA. The device supports Lithium-ion battery chemistries and functions reliably across an ambient temperature range of -20°C to +70°C. It is housed in an 8-pin UMAX surface-mount package, facilitating compact integration into portable electronic systems requiring secure battery identification.

Battery Management Feature Summary

• Implements SHA-1 cryptographic algorithms for authenticating battery packs against authorized sources.
• Utilizes a single-wire interface for communication with the host system.
• Provides low-power operation suitable for energy-constrained portable applications.

Battery Management Applications

• Authentication of Lithium-ion battery packs in portable electronics
• Secure battery identification in consumer devices
• Prevention of unauthorized third-party battery usage

Battery Management Procurement Notes

Verify component authenticity through official Analog Devices channels or authorized distributors due to limited availability status. Confirm that the specific suffix matches the required package type, as variations exist between tube and tape-and-reel packaging formats. Ensure compliance with RoHS directives by checking the detailed environmental documentation provided by the manufacturer before finalizing procurement decisions.

Battery Management Selection Notes

Select this component when SHA-1 based battery authentication is required for Lithium-ion systems. Ensure the design accommodates the 2.7 V to 5.5 V operating voltage window and the -20°C to +70°C temperature range. Verify that the host controller supports the necessary single-wire protocol for secure data exchange during the authentication process.

Battery Management Part Context

This part belongs to the Maxim Integrated battery management portfolio, now under Analog Devices. It serves as a security-focused solution within the power management IC category, specifically addressing counterfeit prevention. It complements other battery monitoring devices by adding a layer of cryptographic verification to ensure only genuine batteries are utilized in compatible systems.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices technical support for qualified alternatives if this component becomes unavailable.

Battery Management FAQ

What cryptographic algorithm does the DS2703U+ use?

The DS2703U+ uses the SHA-1 algorithm to perform battery pack authentication.

What is the operating supply voltage range?

The device operates with a supply voltage ranging from 2.7 V to 5.5 V.