UB10803 Overview
SOP-8 The UTC UB10803 is a fully-integrated single-cell Li-ion/Polymer battery charger. The device operates without external FET and blocking diode, and employs a constant-current constant-voltage (CC/CV) charging profile. The fast-charge and end-of-charge (EOC) currents are programmable with independent external resistors.
UB10803 Key Features
- A Constant-Current/Constant-Voltage Linear Charger for Single-Cell Li-ion/Polymer Batteries
- Integrated Pass Element and Current Sensor
- Highly-Integrated, Requiring No External FETs or Blocking Diode
- 4.2V Voltage Accuracy: ±1.2% All Temperatures (Available with 4.10V and 4.36V options upon request)
- Programmable Charge Current 50mA to 500mA
- Programmable End-Of-Charge Current by Current Recharge Algorithm
- Pre-Charge for Fully Discharged Batteries
- 1μA (Typ.) Leakage Current of the Battery when No Input Power is Attached or Charger is Disabled
- Power Present and Charge Status Indications
- Thermal Regulation on Charging Current to Prevent Over-Heat