General Description
The AP4301 is a monolithic IC specifically designed to control the output current and voltage levels of switch mode battery chargers and power supplies.
The device contains two operational amplifiers and aprecision shunt regulator. OPAMP 1 is designed for voltage control, whose non-inverting input internally
connects to the ouput of the shunt regulator. OPAMP 2 is for current control with both inputs uncommitted.
The IC offers the power converter designer a control solution that features increased precision with a corresponding reduction in system complexity and cost.

 

Features
· Input offset voltage: 0.5mV
· Supply current: 250µA per Op-Amp at 5.0V supply voltage
· Unity gain bandwidth: 1MHz
· Output voltage swing: 0 to (VCC – 1.5)V
· Power supply range: 3 to 18V
· Fixed output voltage reference: 1.25V, 1.24V
· Voltage tolerance: 0.5%, 1%
· Sink current capability from 0.1 to 80mA
· Package types: DIP-8 and SOIC-8

 

Applications
· Battery charger
· Switch mode power supply