DS2436

Battery ID/Monitor Chip

Data Sheet (Rev. 3)
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Overview

  • Unique 1-Wire interface requires only one port pin for communication
  • Provides unique 64-bit identification number to battery packs
  • On-board A/D converter monitors battery voltage for end-of-charge and end-of-discharge determination
  • Eliminates thermistors by sensing battery temperature on-chip
  • 256-bit nonvolatile user memory available for storage of data such as fuel gauge and manufacturing information
  • 2-byte cycle counter
  • Operating range of -40°C to +85°C
  • Applications include portable computers, portable/ cellular phones, consumer electronics, and handheld instrumentation

The DS2436 Battery Identification/Monitor Chip provides a convenient method of tagging and identifying battery packs by manufacturer, chemistry, or other identifying parameters. The DS2436 allows the battery pack to be coded with a unique 64-Bit ROM ID and a 16-Bit Manufacturer ID, and also store information regarding the battery life and charge/discharge characteristics in its nonvolatile memory.

The DS2436 also performs the essential function of monitoring battery temperature, without the need for a thermistor in the battery pack.

A cycle counter assists to determine the remaining cycle life of the battery.

Finally, the DS2436 measures battery voltage and sends that measured value to a host CPU for use in end-of-charge or end-of-discharge determination or basic fuel gauge operation.

Information is sent to/from the DS2436 over a 1-Wire® interface, so that battery packs need only have three output connectors: power, ground, and the 1-Wire interface.

Applications

  • Consumer Electronics
  • Handheld Instruments
  • Portable Computing
  • Portable/Cellular Phones
DS2436
Battery ID/Monitor Chip
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Documentation

Data Sheet 1

Reliability Data 1

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Evaluation Kits

DS2436K

Battery ID/Monitor Evaluation Kit

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Features and Benefits

  • Demonstrates DS2436 capabilities:
    • Voltage measurement
    • Temperature measurement
    • Cycle counter
    • Enables access to all registers and memory
    • Identification
  • Includes evaluation board with all required components
  • Includes PC serial port connectors
  • Windows® 95/98/NT software

Product Details

The DS2436K Evaluation Kit provides the hardware and software for prototyping an application with the DS2436. The evaluation board has a hardwired DS2436 (SOIC package), jumpers, connectors, and a socket for the TO-92 package (not included). The software provides small-volume DS2436 programming support.
DS2436K
Battery ID/Monitor Evaluation Kit

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