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BQ2028

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4Kb EEPROM with single-wire HDQ interface and temperature sensor

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Data sheet

BQ2028

ACTIVE
Data sheet Order now

Product details

Communication interface HDQ Features 4k-bit EEPROM Vin (typ) (V) 3.7 Vin (max) (V) 4.5 Power consumption (typ) (mW) 20 Operating temperature range (°C) -40 to 85 Rating Catalog
Communication interface HDQ Features 4k-bit EEPROM Vin (typ) (V) 3.7 Vin (max) (V) 4.5 Power consumption (typ) (mW) 20 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZG) 12 3.9375 mm² 2.25 x 1.75
  • 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, 0.5mm Pitch
  • 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, 0.5mm Pitch

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.

The bq2028 communicates with the bq27505-E1 gauge over a single-wire HDQ interface with a minimal overhead protocol yet ensures error free data transfer.

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.

The bq2028 communicates with the bq27505-E1 gauge over a single-wire HDQ interface with a minimal overhead protocol yet ensures error free data transfer.
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Type Title Date
* Data sheet 4Kb EEPROM with single-wire HDQ interface and temperature sensor datasheet (Rev. B) 20 Nov 2012

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DSBGA (YZG) 12 View options
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