General Description

The CP103 is a monolithic IC specifically designed to regulate the output current and voltage levels of switching battery chargers and power supplies.

The device contains two Op Amps and a 2.5V precision shunt voltage reference. Op Amp 1 is designed for voltage control with its non-inverting input internally connects to the output of the shunt regulator. Op Amp 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.

Features

Op Amp

· Input Offset Voltage: 0.5mV

· Supply Current: 75µA 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 36V

Voltage Reference

· Fixed Output Voltage Reference: 2.5V

· Voltage Tolerance: ± 0.5%, ± 1%

· Sink Current Capability from 0.05 to 80mA

· Typical Output Impedance: 0.2Ω

Applications

· Battery Charger

· Switching Power Supply