Maxim Integrated DS2436B

Description
The DS2436 Battery Identification/Monitor Chip provides a convenient method for identifying battery packs by manufacturer, chemistry, or other parameters. It features a unique 64-bit ROM ID and a 16-bit Manufacturer ID. Additionally, it stores information on battery life and charge/discharge characteristics in its nonvolatile memory.
The DS2436 also monitors battery temperature without the need for a thermistor. It measures battery voltage and sends the value to a host CPU for end-of-charge or end-of-discharge determination or fuel gauge operation.

Features
Unique 1-Wire interface requires only one port pin for communication
Provides a 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 for storage of data such as fuel gauge and manufacturing information
2-byte cycle counter
Operating range of -40°C to 85°C

Applications
Portable computers
Portable/cellular phones
Consumer electronics
Handheld instrumentation