Diodes AP4310E User Manual
AP4310E
Document number: DS36787 Rev. 2 - 2
1 of 9
www.diodes.com
December 2013
© Diodes Incorporated
AP4310E
A Product Line of
Diodes Incorporated
Description
The AP4310E 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 noninverting input internally connected 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 corresponding
reduction in system complexity and cost. AP4310E has more
stringent reference voltage tolerance and offset.
The AP4310E is available in standard package of SO-8.
Applications
Battery Charger
Switching Power Supply
Pin Assignments
(Top View)
1
2
3
4
8
7
6
5
OUTPUT 1
INPUT 1-
INPUT 1+/VKA
GND
INPUT 2-
INPUT 2+
OUTPUT 2
VCC
SO-8 (M Package)
Features
OP Amp
Input Offset Voltage: 0.5mV
Supply Current: 75A per OP Amp at 5.0V Supply Voltage
Unity Gain Bandwidth:1MHz
Output Voltage Swing: 0 to VCC-1.5V
Power Supply Range: 3 to 36V
Voltage Reference
Fixed Output Voltage Reference: 2.5V
Reference Voltage Tolerance: ±0.4%
Sink Current Capability: 0.05 to 80mA
Typical Output Impedance: 0.2Ω
Totally Lead-free & Fully RoHS Compliant (Note1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
DUAL OP AMP AND VOLTAGE REFERENCE
AP4310E
Document number: DS36787 Rev. 2 - 2
2 of 9
www.diodes.com
December 2013
© Diodes Incorporated
AP4310E
A Product Line of
Diodes Incorporated
AC
Line
SMPS
R2
Current
Sense
R7
R8
Battery Pack
R4
R3
R5
R6
R1
Opto
Isolator
+
-
Op Amp 2
+
-
Op Amp 1
AP4310E
OUTPUT 1
INPUT 1-
INPUT 1+/VKA
GND
VCC
OUTPUT 2
INPUT 2-
INPUT 2+
-
+
-
+
1
2
3
4
8
7
6
5
Op
Amp 1
Op
Amp 2
Typical Applications Circuit
Functional Block Diagram
Application of AP4310E in a Constant Current and Constant Voltage Charger
AP4310E
Document number: DS36787 Rev. 2 - 2
3 of 9
www.diodes.com
December 2013
© Diodes Incorporated
AP4310E
A Product Line of
Diodes Incorporated
Symbol
Parameter
Rating
Unit
VCC
Power Supply Voltage (VCC to GND)
40
V
VIN
Op Amp1 and 2 Input Voltage Range (Pins 2, 5, 6)
-0.3 to VCC+0.3
V
VID
Op Amp 2 Input Differential Voltage (Pins 5, 6)
40
V
IK
Voltage Reference Cathode Current (Pin 3)
100
mA
PD
Power Dissipation (TA=+25°C )
500
mW
TJ
Operating Junction Temperature
+150
C
T
STG
Storage Temperature Range
-65 to +150
C
T
LEAD
Lead Temperature (Soldering 10sec)
+260
C
Parameter
Min
Max
Unit
Supply Voltage
3
36
V
Ambient Temperature
-40
+105
C
Parameters
Conditions
Min
Typ
Max
Unit
Total Supply Current, excluding Current in
Voltage Reference
VCC=5V, no load, -40°C≤TA≤+105°C
–
0.15
0.25
mA
VCC=30V, no load, -40°C≤TA ≤+105°C
–
0.20
0.30
Voltage Reference Section
Reference Voltage
IK=10mA
TA=+25°C
2.49
2.50
2.51
V
-40°C≤TA ≤+105°C
2.48
2.50
2.52
Reference Voltage Deviation over Full
Temperature Range
IK=10mA, TA=-40°C to +105°C
–
5
24
mV
Minimum Cathode Current for Regulation
–
–
0.01
0.05
mA
Dynamic Impedance
IK=1mA to 80mA, f<1kHz
–
0.2
0.5
Ω
Op Amp 1 Section (VCC=5V, VO=1.4V, TA=+25°C, unless otherwise noted.)
Input Offset Voltage
TA=+25°C
–
0.5
3
mV
TA=-40°C to +105°C
–
–
5
Input Offset Voltage Temperature Drift
TA=-40°C to +105°C
–
7 – μV/°C
Input Bias Current (Inverting Input Only)
TA=+25°C
–
20
150
nA
Large Signal Voltage Gain
VCC=15V, RL=2kΩVO=1.4V to 11.4V
85
100 – dB
Power Supply Rejection Ratio
VCC=5V to 30V
70
90 – dB
Absolute Maximum Ratings (Note 4)
Note 4: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are str ess 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 Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions (Note 5)
Note 5: Qualified for SMD on the underside of a PCB by processing the PCB through a wave soldering operation.
Electrical Characteristics (@V
=5V, TA=+25C, unless otherwise specified.)
CC
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