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 a precision 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 corre- sponding reduction in system complexity and cost.
The Advanced Analog Circuits AP4301 is a monolithic integrated circuit designed to control output current and voltage levels in switch-mode battery chargers and power supplies. The device integrates two operational amplifiers and a precision shunt regulator into a single package.
One operational amplifier (OPAMP 1) is configured for voltage control with its non-inverting input internally connected to the shunt regulator output, while the second operational amplifier (OPAMP 2) provides uncommitted current control. The IC offers increased precision and reduced system complexity compared to discrete solutions.
| Input offset voltage (typical) | 0.5mV |
|---|---|
| Unity gain bandwidth | 1MHz |
| Power supply range | 3 to 18V |
| Fixed output voltage reference | 1.25V, 1.24V |
| Voltage tolerance options | 0.5%, 1% |
| Sink current capability range | 0.1 to 80mA |
| Package types | DIP-8 and SOIC-8 |
The device is specifically designed to control the output current and voltage levels of switch mode battery chargers and power supplies.
The supply current is 250µA per Op-Amp when supplied with a 5.0V voltage.
The IC offers fixed output voltage references of 1.25V and 1.24V.