AP4301

Features:

` Input offset voltage: 0.5mV
` Supply current: 250A 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


Application

· Battery charger
· Switch mode power supply


Specifications

Parameter	Symbol	Value		Unit
Power Supply Voltage (VCC to GND)	VCC	20		V
OPAMP 1 and 2 Input Voltage Range (Pins 2, 5, 6)	VIN	0.3 to VCC - 0.3		V
OPAMP 2 Input Differential Voltage (Pins 5, 6)	VID	20		V
Voltage Reference Cathode Current (Pin 3)	IK	100		mA
Power Dissipation	PD	DIP-8	800	mW
		SOIC-8	500
Storage Temperature Range	TSTG	-65 to 150		oC
ESD Protection Voltage (Machine Model)	-	200		V

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.

AP4301 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 corresponding reduction in system complexity and cost.