AP4301 Datasheet, PDF (1/13 Pages) BCD Semiconductor Manufacturing Limited – DUAL OPAMP AND VOLTAGE REFERENCE

Advanced Analog Circuits
DUAL OPAMP AND VOLTAGE REFERENCE
General Description
Features
Data Sheet
AP4301
The AP4301 is a monolithic IC specifically designed _{· Input offset voltage: 0.5mV}
to control the output current and voltage levels of _{· Supply current: 250µA per Op-Amp at 5.0V sup-}
switch mode battery chargers and power supplies.
ply voltage
· Unity gain bandwidth: 1MHz
The device contains two operational amplifiers and a
precision shunt regulator. OPAMP 1 is designed for
·
Output voltage swing: 0 to (V_CC - 1.5)V
voltage control, whose non-inverting input internally ^{· Power supply range: 3 to 18V}
connects to the ouput of the shunt regulator. OPAMP 2 ^{· Fixed output voltage reference: 1.25V, 1.24V}
is for current control with both inputs uncommitted. · Voltage tolerance: 0.5%, 1%
The IC offers the power converter designer a control · Sink current capability from 0.1 to 80mA
solution that features increased precision with a corre- _{· Package types: DIP-8 and SOIC-8}
sponding reduction in system complexity and cost.
Applications
· Battery charger
· Switch mode power supply
March, 2003
SOIC-8
DIP-8
Figure 1. Package Types of AP4301
1
Rev.1.0