PT8A2803 Description
The PT8A2803 is a fully integrated single-cell Liion/Polymer battery charger. The charger operates in a constant-current-constant-voltage (CC/CV) charging profile without employing external FETs and blocking diodes. The fast charge current and end-of-charge (EOC) current can be easily programmed by modifying two external resistors.
PT8A2803 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
- ±0.5% 4.2V Voltage Accuracy at Room
- Programmable Charge Current 50mA to 500mA
- Programmable End-Of-Charge Current by Current Recharge Algorithm
- Pre-Charge for Fully Discharged Batteries
- Less Than 1µA Leakage Current Of the Battery when No Input Power Attached or Charger Disabled
- Power Present and Charge Status Indications
- Thermal Regulation on Charging Current to Prevent Over-Heat