MAX1811

PRODUCTION

MAX1811

USB-Powered Li+ Charger

PRODUCTION

MAX1811: Typical Operating Circuit slide

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1ku List Price Starting From $2.04

Features

Charges Single-Cell Li+ Batteries Directly from USB Port
0.5% Overall Charging Accuracy
Minimal External Components
Input Diode Not Required
Automatic IC Thermal Regulation
Preconditions Near-Depleted Cells
Convenient Power SO-8 Package (1.4W)

Additional Details

The MAX1811 is a single-cell lithium-ion (Li+) battery charger that can be powered directly from a USB port or from an external supply up to 6.5V. It has a 0.5% overall battery regulation voltage accuracy to allow maximum utilization of the battery capacity.

The charger uses an internal FET to deliver up to 500mA charging current to the battery. The device can be configured for either a 4.1V or 4.2V battery, using the SELV input. The SELI input sets the charge current to either 100mA or 500mA. An open-drain output (active-low CHG) indicates charge status.

The MAX1811 has preconditioning that soft-starts a near-dead battery cell before charging. Other safety features include continuous monitoring of voltage and current and initial checking for fault conditions before charging.

The MAX1811 is available in a small 1.4W thermally enhanced 8-pin SO package.

Applications

Cell Phones
Digital Still Cameras
Handheld Computers
MP3 Players
PDAs and Palmtops
Two-Way Paging

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Ask a Question

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $2.04

Technical Documents 4

MAX1811: USB-Powered Li+ Charger Data Sheet (Rev.3) 06/18/2003

MAX1811 Reliability Data 01/12/2023

Dual Comparator Thermally Protects Li+ Battery 12/29/2003

Add Current Boost to USB Charger Driven by an AC Adapter 12/10/2002

Reference Materials 1

MIKROE-5882, Click Board, Charger 26 Click

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX1811ESA+	8-SOIC_N-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX1811ESA+T	8-SOIC_N-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys