AP4313

A Product Line of
Diodes Incorporated
AP4313
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER
Description
Pin Assignments
The AP4313 is a highly integrated solution for a constant
voltage/constant current mode SMPS application.
(Top View)
Pin 1 Mark
The AP4313 contains one 1.21V voltage reference with 1%
accuracy, one current sensing circuit and two operational amplifiers.
Combining the voltage reference with one operational amplifier makes
AP4313 an ideal voltage controller for use in adapters and battery
chargers. The other low voltage reference combined with the other
operational amplifier makes it an ideal current limiter for output low
side current sensing.
The AP4313 is available in SOT26 package.
VCTRL
1
6
VCC
GND
2
5
VSENSE
VOUT
3
4
ICTRL
Features








SOT26
Constant Voltage and Constant Current Control
Precision Internal Voltage Reference
Few External Components
Easy Compensation
Low Supply Current: 0.5mA
Operating Temperature Range: -40 to +105oC
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
Applications


Adapters
Battery Chargers
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.
Typical Applications Circuit
VOUT+
To primary
R2
AP4313
VCC
R4
1.210V
R3
VOUT
IL
C1
+
+
VCTRL
Load
C3
GND
R5
ICTRL
VSENSE
R1
R6
500
VOUTRss
VOUT  VREF 
R1  R 2
(V)
R1
CurrentLimit 
VSENSE
(A)
RSS
Typical Application 1
AP4313
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AP4313
Typical Applications Circuit (Cont.)
VOUT+
To primary
AP4313
R2
VCC
R4
1.210V
C1
R3
VOUT
IL
+
+
VCTRL
Load
C3
GND
R5
ICTRL
VSENSE
R1
R6
500
VOUTRss
VOUT  [VREF  ( I L  RSS )] 
R1  R2
 ( I L  RSS ) (V)
R1
CurrentLimit 
VSENSE
(A)
RSS
Typical Application 2
VOUT+
To primary
R2
AP4313
VCC
R4
1.210V
R3
VOUT
IL
C1
+
+
VCTRL
Load
C3
GND
R5
ICTRL
VSENSE
R1
R6
500
VOUTRss
VOUT  VREF 
R1  R 2
 ( I L  RSS ) (V)
R1
CurrentLimit 
VSENSE  VREF
VSENSE  VREF  RSS
(A)
Typical Application 3
AP4313
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AP4313
Pin Descriptions
Pin Number
Pin Name
Function
1
VCTRL
Input pin of the voltage control loop
2
GND
Ground
3
VOUT
Output pin. Sinking current only
4
ICTRL
Input pin of the current control loop
5
VSENSE
Input pin of the current control loop
6
VCC
Power supply
Functional Block Diagram
VCC
6
1.210V
3
VOUT
1
VCTRL
200mV
2
4
5
ICTRL
AP4313
Document number: DS37565 Rev.2 - 2
GND
VSENSE
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AP4313
Absolute Maximum Ratings (Note 4)
Symbol
Parameter
VCC
Power Supply Voltage
VIN
Input Voltage
TJ
TSTG
TLEAD
θJC
Rating
Unit
20
V
-0.3 to VCC
Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 5 sec)
Package Thermal Resistance (Junction to Case)
V
+150
o
-65 to +150
o
+260
o
C
C
C
o
92
C/W
Note 4: 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 Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
VCC
TA
Parameter
Power Supply Voltage
Operating Temperature Range
Min
Max
2.5
18
-40
Unit
V
o
+105
C
Electrical Characteristics (VCC=5V, TA=+25oC, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
–
–
0.6
1.2
mA
TOTAL CURRENT CONSUMPTION
ICC
Total Supply Current
Not Including the Output Sinking
Current
VOLTAGE CONTROL LOOP
Gmv
Transconduction Gain (VCTRL).
Sink Current Only
–
1
3.5
–
mA/mV
VREF
Voltage Control Loop Reference
–
1.198
1.21
1.222
V
Input Bias Current (VCTRL)
–
–
50
–
nA
Transconduction Gain (ICTRL)
–
1.5
7
–
mA/mV
Current Control Loop Reference
IOUT=2.5mA
196
200
204
mV
Current Out of Pin ICTRL at -200mV
–
–
25
–
A
Low Output Voltage at 10mA Sinking
Current
Output Short Circuit Current.
Output to VCC. Sink Current Only
–
–
200
–
mV
–
–
27
50
mA
IIBV
CURRENT CONTROL LOOP
Gmi
VSENSE
IIBI
OUTPUT STAGE
VOL
IOS
AP4313
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AP4313
Performance Characteristics
VREF vs. Ambient Temperature
VSENSE vs. Ambient Temperature
202
1.225
201
1.220
VCC=12V
VCC=5V
VCC=2.5V
200
VSENSE (mV)
VREF (V)
1.215
1.210
199
198
1.205
197
1.200
1.195
-40
196
-20
0
20
40
60
80
100
195
-40
120
-20
0
20
40
60
80
100
120
o
o
Ambient Temperature ( C)
Ambient Temperature ( C)
VCTRL Pin Input Bias Current vs. Ambient Temperature
ICTRL Pin Input Bias Current vs. Ambient Temperature
40
80
VCC=12V
VCC=5V
VCC=2.5V
60
VCC=12V
VCC=5V
VCC=2.5V
35
IIBI (A)
IIBV (nA)
40
20
30
25
0
20
-20
-40
-40
-20
0
20
40
60
80
100
15
-40
120
-20
0
o
20
40
60
80
100
120
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Output Short Circuit Current vs. Ambient Temperature
Supply Current vs. Ambient Temperature
1.4
60
VCC=12V
VCC=5V
VCC=2.5V
1.2
50
1.0
ICC (mA)
IOS (mA)
40
30
20
VCC=12V
VCC=5V
VCC=2.5V
10
0
-40
-20
0
20
40
60
80
100
0.2
120
0.0
-40
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Document number: DS37565 Rev.2 - 2
0.6
0.4
o
AP4313
0.8
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AP4313
Ordering Information
AP4313 X XX - XX
Product Name
Package
Temperature Range
SOT26
-40 to +105C
Package
Packing
RoHS/Green
K: SOT26
TR: Tape & Reel
G1: Green
Part Number
AP4313KTR-G1
Marking ID
G6G
Packing
3000/Tape & Reel
Marking Information
(Top View)
: Logo
XXX: Marking ID
AP4313
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AP4313
Package Outline Dimensions (All dimensions in mm(inch).)
(1 ) Package Type: SOT26
0°
2.820(0.111)
8°
3.100(0.122)
0.300(0.012)
0.500(0.020)
5
4
2
3
0.300(0.012)
0.600(0.024)
1.500(0.059)
1.700(0.067)
2.650(0.104)
3.000(0.118)
6
0.200(0.008)
Pin 1 Mark
1
0.700(0.028)REF
0.950(0.037)TYP
0.000(0.000)
0.150(0.006)
1.800(0.071)
2.000(0.079)
0.100(0.004)
0.200(0.008)
0.900(0.035) 1.450(0.057)
MAX
1.300(0.051)
AP4313
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AP4313
Suggested Pad Layout
(1 ) Package Type: SOT26
E
E
Y
G
Z
X
Dimensions
Value
AP4313
Document number: DS37565 Rev.2 - 2
Z
(mm)/(inch)
3.600/0.142
G
(mm)/(inch)
1.600/0.063
X
(mm)/(inch)
0.700/0.028
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Y
(mm)/(inch)
1.000/0.039
E
(mm)/(inch)
0.950/0.037
October 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AP4313
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
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hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2014, Diodes Incorporated
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AP4313
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