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LTC1559-5 - Backup Battery Controller

Download the LTC1559-5 datasheet PDF. This datasheet also covers the LTC variant, as both devices belong to the same backup battery controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The LTC®1559 is a backup battery controller that provides all the functions necessary to implement a backup 3.3V or 5V power supply using a single NiCd cell.

Key Features

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📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTC-1559.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LTC1559-3.3/LTC1559-5 Backup Battery Controller with Fixed Output FEATURES s s DESCRIPTION The LTC®1559 is a backup battery controller that provides all the functions necessary to implement a backup 3.3V or 5V power supply using a single NiCd cell. It includes a 1.2V to 3.07V/4.63V boost converter, an intelligent 2-stage battery charger, automatic backup switching and a microprocessor reset generator. The boost converter uses a synchronous switching architecture to achieve a typical efficiency of 70%, ensuring maximum backup lifetime from a small NiCd cell. The on-chip NiCd charger uses an internal gas gauge to minimize fast recharge time and prevent overcharging of the backup cell, thereby improving system efficiency and extending the life of the backup cell.