Preliminary Datasheet
DUAL OP AMP AND VOLTAGE REFERENCE
General Description
The AP4310 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 preci-
sion 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.
The AP4310 is available in standard packages of DIP-
8 and SOIC-8.
AP4310
Features
Op Amp
·
Input Offset Voltage: 0.5mV
·
Supply Current: 75µA per Op Amp at 5.0V Sup-
ply Voltage
·
Unity Gain Bandwidth: 1MHz
·
Output Voltage Swing: 0 to (V
CC
- 1.5) V
·
Power Supply Range: 3 to 36V
Voltage Reference
·
Fixed Output Voltage Reference: 2.5V
·
Voltage Tolerance:
±
0.4%,
±
1%
·
Sink Current Capability: 0.05 to 80mA
·
Typical Output Impedance: 0.2
Ω
Applications
·
·
Battery Charger
Switching Power Supply
SOIC-8
DIP-8
Figure 1. Package Types of AP4310
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
1
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
