The DS2435 Battery Identification Chip with Time/Temperature Histogram provides a convenient method of tagging and identifying battery packs by manufacturer, chemistry, or other identifying parameters. The DS2435 allows the battery pack to be coded with a unique identification number and also store information regarding the battery life and charge/discharge characteristics in its nonvolatile memory.
The DS2435 performs the essential function of monitoring battery temperature without the need for a thermistor in the battery pack. A time/temperature histogram function stores the amount of time that the battery has been in one of its eight user definable temperature bands, allowing more accurate selfdischarge calculations to be carried out by the user for determining remaining battery capacity. The onboard elapsed time counter provides a method that can even determine the amount of time that a battery pack has been in storage, allowing for a more accurate self-discharge determination.
•Provides unique ID number to battery packs
•Eliminates thermistors by sensing battery temperature on-chip
•Elapsed time counter provides indication of battery usage/storage time
•Time/temperature histogram function provides essential information for determining battery self-discharge
•256-bit nonvolatile user memory available for storage of user data such as gas gauge and manufacturing information.
•Operating range of -40°C to +85°C
•Applications include portable computers,portable/cellular phones, consumer electronics, and handheld instrumentation.