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bq78z100 - Gas Gauge

Description

The bq78z100 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1-series to 2-series cell Li-Ion and Li-Polymer battery packs.

Features

  • 1 High-Accuracy Coulomb Counter with Input Offset Error < 1 µV (Typical).
  • High-Side FET Drive Allows Serial Bus Communication During Fault Conditions.
  • Analog Front End with Two Independent ADCs.
  • Support for Simultaneous Current and Voltage Sampling.
  • Bus Communications Interface Options.
  • I2C.
  • HDQ.
  • SHA-1 Hash Message Authentication Code (HMAC) Responder for Increased Battery Pack Security.
  • Split Key (2 × 64) Stored in.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq78z100 SLUSC23 – SEPTEMBER 2015 bq78z100 Impedance Track™ Gas Gauge for 1-Series to 2-Series Li-Ion/Li-Polymer Battery Packs Check for Samples: bq78z100 1 Features •1 High-Accuracy Coulomb Counter with Input Offset Error < 1 µV (Typical) • High-Side FET Drive Allows Serial Bus Communication During Fault Conditions • Analog Front End with Two Independent ADCs – Support for Simultaneous Current and Voltage Sampling • Bus Communications Interface Options – I2C – HDQ • SHA-1 Hash Message Authentication Code (HMAC) Responder for Increased Battery Pack Security – Split Key (2 × 64) Stored in Secure Memory • Programmable Protection Levels for: – Overcurrent in Discharge – Short-Circuit Current in Charge –
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