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bq2028 - 4Kb EEPROM

General Description

The Texas Instruments bq2028 serial 4Kb nonvolatile memory (EEPROM) with integrated temperature sensor and LDO linear regulator provides pack-side memory storage and temperature monitoring for a single-cell system-side battery fuel gauge solution such as the bq27505-E1.

Key Features

  • 1.
  • Serial Non-Volatile Memory (NVM).
  • 512 Byte (4Kb) EEPROM.
  • Provides Battery Pack NVM storage for bq27505-E1 Fuel Gauge:.
  • Manufacturing Data.
  • Operational History.
  • Resistance Tables.
  • State of Health Information.
  • Single Wire HDQ Communications Port.
  • Integrated 2.5V LDO Linear Regulator.
  • Ultra-low power “shutdown” mode (1µA Typical) via auto-timeout and/or host command.
  • Wake up from shutdown via HDQ b.

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Other Datasheets by Texas Instruments

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.ti.com bq2028 SLUSB22B – OCTOBER 2012 – REVISED NOVEMBER 2012 4Kb EEPROM with Single-Wire HDQ Interface and Temperature Sensor Check for Samples: bq2028 FEATURES 1 • Serial Non-Volatile Memory (NVM) – 512 Byte (4Kb) EEPROM – Provides Battery Pack NVM storage for bq27505-E1 Fuel Gauge: – Manufacturing Data – Operational History – Resistance Tables – State of Health Information • Single Wire HDQ Communications Port • Integrated 2.5V LDO Linear Regulator – Ultra-low power “shutdown” mode (1µA Typical) via auto-timeout and/or host command – Wake up from shutdown via HDQ break • Internal Die-Temperature Sensor – ±5°C Range = –40°C to 85°C – Raw AD to Temperature Conversion Performed by Host Firmware • Package – 12-pin, 1490 × 2350 µm WCSP (YZG), 0.625mm Max Thickness, 0.