UB2017 Overview
UTC UB2017 is a plete, constant current and constant voltage linear charger for single cell lithium-ion batteries. Its small size and ability to regulate low charge currents make UTC UB2017 especially well-suited for portable applications using low capacity rechargeable lithium-ion coin cells. Furthermore, UTC UB2017 is specifically designed to work within USB power specifications.
UB2017 Key Features
- Programmable Charge Current Up to 500mA
- No External MOSFET, Sense Resistor or Blocking Diode Required
- plete linear charger in Thin SOT Package for Single Cell / Coin Cell Lithium-lon Batteries
- Constant Current / Constant Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk
- Charges Single Cell Li-lon Batteries Directly form USB Port
- Preset 4.2V Charge Voltage with High Accuracy about ±1.2%
- Automatic Recharge
- 2.9V Trickle Charge Threshold
- 25µA Max Supply Current in Shutdown Mode
- Charge Status Output Pin