Data Sheet
DUAL OP AMP AND VOLTAGE REFERENCE
General Description
The AP4301 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 operational amplifiers and a
precision shunt regulator. Op Amp 1 is designed for
voltage control, whose 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 AP4301 is available in standard packages of DIP-
8 and SOIC-8.
AP4301
Features
Op Amp
·
Input Offset Voltage: 0.5mV
·
Supply Current: 250µA 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 18V
Voltage Reference
·
Fixed Output Voltage Reference: 1.25V, 1.24V
·
Voltage Tolerance: 0.5%, 1%
·
Sink Current Capability from 0.1 to 80mA
Applications
·
·
Battery Charger
Switching Power Supply
SOIC-8
DIP-8
Figure 1. Package Types of AP4301
Apr. 2007 Rev. 1. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
DUAL OP AMP AND VOLTAGE REFERENCE
Pin Configuration
AP4301
M Package/P Package
(SOIC-8/DIP-8)
OUTPUT 1
INPUT 1-
INPUT 1+/V
KA
GND
1
2
3
4
8
7
6
5
V
CC
OUTPUT 2
INPUT 2-
INPUT 2+
Top View
Figure 2. Pin Configuration of AP4301
Functional Block Diagram
OUTPUT 1
1
8
V
CC
-
2
INPUT 1
+
7
OUTPUT 2
+
3
-
6
INPUT 2
GND
4
5
Figure 3. Functional Block Diagram of AP4301
Apr. 2007 Rev. 1. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
DUAL OP AMP AND VOLTAGE REFERENCE
Functional Block Diagram (Continued)
V
CC
AP4301
6µA
4µA
100µA
Q5
Q6
Q2
INPUT-
Q1
Q3
Q4
Rsc
OUTPUT
INPUT+
Q11
Q10
Q8
Q9
Q12
50µA
Q13
Cc
Q7
Figure 4. Op Amp Functional Block Diagram
(Each Amplifier)
V
KA
20µA
20µA
GND
Figure 5. Voltage Reference Functional Block Diagram
Apr. 2007 Rev. 1. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
DUAL OP AMP AND VOLTAGE REFERENCE
Ordering Information
AP4301
Circuit Type
Voltage Tolerance
A: 0.5%
B: 1%
Package
M: SOIC-8
P: DIP-8
-
E1: Lead Free
Blank: Tin Lead
TR: Tape and Reel
Blank: Tube
Output Voltage Reference
C: 1.25V
D: 1.24V
AP4301
Package
Refer-
ence
Voltage
1.25V
Voltage
Tolerance
0.5%
1%
0.5%
1%
0.5%
Tempera-
ture Range
Part Number
Tin Lead
AP4301AP-C
Lead Free
AP4301AP-CE1
AP4301BP-CE1
AP4301AP-DE1
AP4301BP-DE1
AP4301AM-CE1
Marking ID
Tin Lead
AP4301AP-C
AP4301BP-C
AP4301AP-D
AP4301BP-D
Lead Free
AP4301AP-CE1
AP4301BP-CE1
AP4301AP-DE1
AP4301BP-DE1
Packing
Type
DIP-8
1.24V
-40 to 85
o
C
AP4301BP-C
AP4301AP-D
AP4301BP-D
AP4301AM-C
Tube
AP4301AM-C AP4301AM-CE1
Tube
Tape &
Reel
Tube
Tape &
Reel
Tube
Tape &
Reel
Tube
Tape/
Reel
AP4301AM-CTR AP4301AM-CTRE1 AP4301AM-C AP4301AM-CE1
AP4301BM-C
AP4301BM-CE1
AP4301BM-C AP4301BM-CE1
1.25V
1%
SOIC-8
0.5%
1.24V
1%
-40 to 85 C
o
AP4301BM-CTR AP4301BM-CTRE1 AP4301BM-C AP4301BM-CE1
AP4301AM-D
AP4301AM-DE1
AP4301AM-D AP4301AM-DE1
AP4301AM-DTR AP4301AM-DTRE1 AP4301AM-D AP4301AM-DE1
AP4301BM-D
AP4301BM-DE1
AP4301BM-D AP4301BM-DE1
AP4301BM-DTR AP4301BM-DTRE1 AP4301BM-D AP4301BM-DE1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Apr. 2007 Rev. 1. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
DUAL OP AMP AND VOLTAGE REFERENCE
Absolute Maximum Ratings (Note 1)
Parameter
Power Supply Voltage (V
CC
to GND)
Op Amp 1 and 2 Input Voltage Range (Pins 2, 5, 6)
Op Amp 2 Input Differential Voltage (Pins 5, 6)
Voltage Reference Cathode Current (Pin 3)
Power Dissipation
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering 10s)
Symbol
V
CC
V
IN
V
ID
I
K
DIP-8
P
D
T
J
T
STG
T
L
SOIC-8
150
-65 to 150
260
Value
20
-0.3 to V
CC
+0.3
20
100
800
500
mW
o
o
o
AP4301
Unit
V
V
V
mA
C
C
C
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-
imum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Voltage
Ambient Temperature
Min
3
-40
Max
18
85
Unit
V
o
C
Apr. 2007 Rev. 1. 3
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BCD Semiconductor Manufacturing Limited
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