LiPo Battery Charger for 3.7V Cells, mini-USB, 4.2V MCP73831

Description

LiPo Battery Charger for 3.7V Cells, mini-USB, 4.2V MCP73831
PRT-10401
The LiPo Charger Basic uses a Microchip MCP73831T-2ACI/OT charge management controller to charge 3.7V single-cell Lithium-Ion or Lithium-Polymer batteries at a rate of 500mA
per hour.
The board incorporates a charging circuit, status LED, connector for your battery
(JST type),
and the
mini-USB
connector. A small mounting hole allows this charger to be embedded into a project easily. The board measures
29.4 × 10.8 mm.
Two through-hole pads are provided in case you need to install header pins to connect a battery that does not have a
JST connector.
Instead of requiring a PC's USB power, you might consider the
TOL-11456
wall-mount 5V, 1A power supply that uses a USB cable for delivery.
MCP73831T-2ACI/OT Specifications
Regulated Output Voltage (Vreg): 4.20V
Precondition Current Ratio (Ipreg/Ireg): 10
Precondition Voltage Threshold Ratio (Vpth/Vreg): 66.5
Charge Termination Current Ratio (Iterm/Ireg): 7.5
Recharge Voltage Threshold Ratio (Vrth/Vreg): 96.5
Temperature range: -40 to +85 °C
Be sure to read the datasheet below and the datasheet of your battery to make sure this charger will work with
your battery.