Single Cell - LiPo USB Charger

Note: Although this product is no longer available, we do have plenty of alternative power options here.

The Sparkfun USB LiPo charger Single Cell is a simple basic charging circuit, allowing you to charge 3.7V LiPo cells at a rate of 500mA or 100mA. This Single Cell LiPo charger is designed to charge single cell Li-Ion or Li-Polymer batteries.

Consisting of a charging circuit, status LED, selectable solder jumper for 500mA and 100mA currents, external LED footprint, USB input and two pre-installed JST connectors for SYS OUT and BATT IN, and a barrel jack connector.

The charger also includes a ‘SYS OUT’ with a pre-installed JST Connector, allowing the user to simultaneously charge the battery and continue using the device.

Features:

• Linear Charger Management Controller with integrated pass transistor, integrated current sense, and reverse discharge protection.
• Four Voltage Regulation Options: 4.2V, 4.35V, 4.4V, 4.5V.
• Configurable Charge Current: 100mA or 500mA.
• Thermal Regulation.
• Temperature Range: -40C to +85C.

Contents:

• 1 x USB, Single Cell LiPoly Charger.

Possible applications include:

• Lithium-Ion/Lithium-Polymer Battery Chargers.
• Digital Cameras.
• MP3 Players.
• Cellular Telephones.

Resources:

• Schematic Sheet.
• Datasheet.

SparkFun Stock Code:

• PRT-12711