MAX1811
PRODUCTIONUSB-Powered Li+ Charger
- Part Models
- 2
- 1ku List Price
- Starting From $2.69
Overview
- 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)
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
Documentation
Data Sheet 1
Design Note 2
Technical Articles 6
3rd Party Solutions 1
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-Lead SOIC (3.9mm x 4.9mm x 1.55mm) | ||
| MAX1811ESA+T | 8-Lead SOIC (3.9mm x 4.9mm x 1.55mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX1811ESA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareLatest Discussions
No discussions on MAX1811 yet. Have something to say?
Start a Discussion on EngineerZone®