ISL6296DRZ-T

Battery Management Overview

The ISL6296DRZ-T is a battery authentication device utilizing Intersil’s FlexiHash technology. It functions as a fixed-secret hash engine to prevent unauthorized cloning of battery packs through a challenge-response scheme. The component supports 1-cell Li-ion/Li-Poly and 3-cell series NiMH battery packs, operating within a voltage range of 2.6V to 4.8V. It features an XSD single-wire interface compatible with UARTs or GPIOs, offering up to 23kbps transfer rates. The device includes on-chip voltage regulation, power-on reset, and a non-crystal oscillator for bus timing.

Battery Management Feature Summary

• Implements a challenge-response authentication scheme using 32-bit challenge codes and 8-bit authentication codes to secure battery data.
• Contains 16x8 OTP ROM capable of storing three sets of host-selectable secrets alongside programmable memory for ID codes.
• Utilizes a non-unique mapping of secret keys to authentication codes to maximize hacking difficulty via exhaustive key search requirements.
• Provides true zero-power sleep mode that activates automatically following a defined period of bus inactivity.

Battery Management Applications

• Authentication of 1-cell Li-ion battery packs
• Authentication of 1-cell Li-Polymer battery packs
• Authentication of 3-cell series NiMH battery packs

Battery Management Procurement Notes

Verify the specific suffix DRZ-T against official datasheets to confirm package type and tape-and-reel configuration. Confirm RoHS compliance status directly from manufacturer documentation. Ensure compatibility with existing host controller interfaces before procurement. Check for end-of-life notifications or discontinuance alerts associated with this specific part number revision.

Battery Management Selection Notes

Select this component when cost-effective battery cloning prevention is required for low-power applications. It is suitable for systems where board space is limited due to its small footprint. Choose this device if the application requires direct connection to cell terminals without external regulation components. Consider this option for designs needing simple single-wire communication protocols.

Battery Management Part Context

The ISL6296 belongs to Intersil's portfolio of battery management solutions designed for portable electronics. It addresses security concerns by providing hardware-level authentication distinct from software-based methods. This device integrates seamlessly into battery pack assemblies to protect intellectual property and ensure user safety.

Battery Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and interface standards if considering alternative manufacturers' authentication ICs.

Battery Management FAQ

How does the ISL6296 prevent battery cloning?

It uses a challenge-response scheme based on FlexiHash technology, making cloning via eavesdropping economically unviable without knowledge of the secret code.

What types of battery packs does the ISL6296 support?

The device supports 1-cell Li-ion, 1-cell Li-Polymer, and 3-cell series NiMH battery packs.

What is the maximum data transfer rate of the XSD interface?

The XSD single-wire host bus interface supports a transfer bit-rate of up to 23kbps.