Battery Identification/Monitor Chip

A single chip that monitors battery parameters and stores pertinent data for battery identification and charge control is being introduced by Dallas Semiconductor.

Integrating a 10-b voltage A/D converter, temperature-sensing circuitry, and nonvolatile memory, the DS2436 Battery Identification/Monitor Chip is designed for use as a data-acquisition system for batteries.

Battery packs equipped with a DS2436 carry their identification parameters and manufacturing data in 256-b of nonvolatile memory. The chip is a chemistry-independent device, and uses 1-wire technology to reduce the number of interconnects required for operation to three: data, power, and ground. With these minimal interconnects, the chip can be mounted directly in the battery pack.

The chip offers a supply range of 2.7 V to 10 V, and operates over the full industrial temperature range of -40º C to +85º C. It is available in a three-lead PR-35 package, a 16-pin SSOP, and tape-and-reel format.

Dallas Semiconductor, 4401 S. Beltwood Pkwy., Dallas, TX 75244. Phone: 972-371-4000; Fax: 972-371-3725.