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MAX1612 - Bridge-Battery Backup Controller

General Description

The MAX1612/MAX1613 manage the bridge battery (sometimes called a hot-swap or auxiliary battery) in portable systems such as notebook computers.

They feature a step-up DC-DC converter that boosts 2-cell or 3-cell bridge-battery voltages up to the same level as the main battery.

Key Features

  • o Reduce Battery Size and Cost o Four Key Circuit Blocks Adjustable Boost DC-DC Converter NiCd/NiMH Trickle Charger Always-On Linear Regulator (+28V Input) Low-Battery Detector o Low 18µA Quiescent Current o Selectable Charging/Discharging Rates o Preset Linear-Regulator Voltage 5V (MAX1612) 3.3V (MAX1613) o 4V to 28V Main Input Voltage Range o Internal Switch Boost Converter o Small 16-Pin QSOP Package General.

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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.

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19-4785; Rev 0; 11/98 NUAL KIT MA ATION U EET L H A S V A E T WS DA O L L O F Bridge-Battery Backup Controllers for Notebooks Features o Reduce Battery Size and Cost o Four Key Circuit Blocks Adjustable Boost DC-DC Converter NiCd/NiMH Trickle Charger Always-On Linear Regulator (+28V Input) Low-Battery Detector o Low 18µA Quiescent Current o Selectable Charging/Discharging Rates o Preset Linear-Regulator Voltage 5V (MAX1612) 3.3V (MAX1613) o 4V to 28V Main Input Voltage Range o Internal Switch Boost Converter o Small 16-Pin QSOP Package General Description The MAX1612/MAX1613 manage the bridge battery (sometimes called a hot-swap or auxiliary battery) in portable systems such as notebook computers.