Battery Manager Chip

Overview

Technical Documents

Ordering Info

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Status

Part Number	Status
DS1259	This product is No Longer Available. See Ordering Information for recommended replacements.

Description

The DS1259 Battery Manager Chip is a low-cost battery management system for portable and nonvolatile electronic equipment. A battery connected to the battery input pin supplies power to CMOS electronic circuits when primary power is lost through an efficient switch via the V_CCO pins. When power is supplied from the battery, the power-fail signal is active to warn electronic reset circuits of the power status. Energy loss during shipping and handling is avoided by pulsing reset, thereby causing the battery to be isolated from other elements in the circuits.

Data Sheet

Download	Rev 1	(PDF, 74kB)
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Key Features

Facilitates uninterruptible power
Uses battery only when primary V_CC is not available
Low forward voltage drop
Power fail signal interrupts processor or write protects memory
Consumes less than 100nA of battery current
Low battery warning signal
Battery can be electrically disconnected upon command
Battery will automatically reconnect when V_CC is applied
Mates directly with DS1212 Nonvolatile Controller x 16 Chip to back up 16 RAMs
Optional 16-pin SOIC surface-mount package
Underwriters Laboratories (UL) Recognized

Diagram

Block Diagram

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 1999-11-19
This page last modified: 2009-10-26