Download DS2438 Datasheet PDF
DS2438 page 2
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DS2438 Description

DQ - Data In/Out VAD - General A/D input VSENS+ - Battery current monitor input (+) VSENS.

DS2438 Key Features

  • Unique 1-Wire® interface requires only one port pin for munication
  • Provides unique 64-bit serial number
  • Eliminates thermistors by sensing battery
  • On-board A/D converter allows monitoring of battery voltage for end-of-charge and end
  • On-board integrated current accumulator facilitates fuel gauging
  • Elapsed time meter in binary format
  • 40-byte nonvolatile user memory available
  • Reverts to low-power sleep mode on battery pack disconnect (feature disabled on
  • Operating range -40ºC to +85ºC