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AP4305_07 [BCDSEMI]

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER; 恒压恒流控制器
AP4305_07
型号： AP4305_07
厂家： BCD SEMICONDUCTOR MANUFACTURING LIMITED    BCD SEMICONDUCTOR MANUFACTURING LIMITED
描述：

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER
恒压恒流控制器

控制器
文件： 总12页 (文件大小：218K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
General Description  
Features  
The AP4305 is a highly integrated solution for a con-  
stant voltage/constant current mode SMPS application.  
·
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  
·
·
·
·
·
The AP4305 contains one 1.21V voltage reference  
with ± 0.5% accuracy, one current sensing circuit and  
two operational amplifiers. Combining the voltage ref-  
erence with one operational amplifier makes AP4305  
an ideal voltage controller for use in adapters and bat-  
tery chargers. The other low voltage reference com-  
bined with the other operational amplifier makes it an  
ideal current limiter for output low side current sens-  
ing.  
Applications  
·
·
Adapters  
Battery Chargers  
The AP4305 is available in SOT-23-6 package.  
SOT-23-6  
Figure 1. Package Type of AP4305  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
1
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Pin Configuration  
K Package  
(SOT-23-6)  
VCTRL  
GND  
VOUT  
1
2
3
6
5
4
VCC  
VSENSE  
ICTRL  
Figure 2. Pin Configuration of AP4305 (Top View)  
Pin Description  
Pin Number  
Pin Name  
VCTRL  
GND  
Function  
1
2
3
4
5
6
Input pin of the voltage control loop  
Ground  
VOUT  
Output pin. Sinking current only  
Input pin of the current control loop  
Input pin of the current control loop  
Power supply  
ICTRL  
VSENSE  
VCC  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
2
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Functional Block Diagram  
V
CC  
6
1.210V  
3
1
V
OUT  
V
CTRL  
200mV  
2
GND  
5
4
I
V
CTRL  
SENSE  
Figure 3. Functional Block Diagram of AP4305  
Ordering Information  
AP4305  
-
E1: Lead Free  
Blank: Tin Lead  
Circuit Type  
TR: Tape and Reel  
Blank: Tube  
Package  
K: SOT-23-6  
Part Number  
Marking ID  
Temperature  
Packing  
Type  
Package  
Range  
Tin Lead  
Lead Free  
Tin Lead  
K2B  
Lead Free  
E2B  
-40 to 105oC  
SOT-23-6  
AP4305KTR  
AP4305KTR-E1  
Tape & Reel  
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
3
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Absolute Maximum Ratings (Note 1)  
Parameter  
Symbol  
Value  
Unit  
Power Supply Voltage  
VCC  
20  
V
Input Voltage  
VIN  
TJ  
-0.3 to VCC  
150  
V
oC  
oC  
Junction Temperature  
Storage Temperature  
TSTG  
TLEAD  
RθJC  
-65 to 150  
260  
oC  
Lead Temperature (Soldering, 5sec)  
Package Thermal Resistance (Junction to Case)  
oC/W  
92  
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 Maximum Ratings" for extended periods  
may affect device reliability.  
Recommended Operating Conditions  
Parameter  
Symbol  
VCC  
Min  
2.5  
Max  
18  
Unit  
Power Supply Voltage  
Operating Temperature Range  
V
oC  
TA  
-40  
105  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
4
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Electrical Characteristics  
o
(V =5V, T =25 C, unless otherwise specified.)  
CC  
A
Parameter  
Symbol  
Conditions  
Min  
Typ  
Max  
Unit  
TOTAL CURRENT CONSUMPTION  
TA=25oC  
-40oC  
Total Supply Current  
Not Including the Output Sinking  
Current  
0.5  
0.6  
1
ICC  
mA  
<
TA  
<
105oC  
VOLTAGE CONTROL LOOP  
TA=25oC  
-40oC  
TA=25oC  
-40oC  
TA=25oC  
-40oC  
1
3.5  
2.5  
Transconduction Gain (VCTRL).  
Sink Current Only  
Gmv  
VREF  
IIBV  
mA/mV  
V
<
TA  
<
<
<
105oC  
105oC  
105oC  
1.204  
1.186  
1.21  
1.216  
1.234  
Voltage Control Loop Reference  
<TA  
50  
Input Bias Current (VCTRL  
)
nA  
100  
<TA  
CURRENT CONTROL LOOP  
TA=25oC  
IOUT=2.5mA, TA=25oC  
Transconduction Gain (ICTRL).  
Sink Current Only  
1.5  
7
Gmi  
mA/mV  
mV  
198  
192  
200  
202  
208  
Current Control Loop Reference  
VSENSE  
<TA<  
IOUT=2.5mA, -40oC 105oC  
TA=25oC  
25  
50  
IIBI  
µA  
Current Out of Pin ICTRL at 200mV  
-40oC  
<TA  
<
<
105oC  
OUTPUT STAGE  
TA=25oC  
TA=25oC  
Low Output Voltage at 10mA  
Sinking Current  
200  
VOL  
mV  
mA  
Output Short Circuit Current.  
Output to VCC, Sink Current Only  
27  
35  
50  
IOS  
-40oC  
<TA  
105oC  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
5
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Typical Performance Characteristics  
1.220  
1.215  
1.210  
1.205  
1.200  
1.195  
1.190  
203  
202  
201  
200  
199  
198  
VCC=12V  
VCC=5V  
VCC=2.5V  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
Ambient Temperature (oC)  
Ambient Temperature (oC)  
Figure 4. V  
vs. Ambient Temperature  
Figure 5. VSENSE vs. Ambient Temperature  
REF  
45  
40  
35  
30  
25  
20  
15  
100  
80  
60  
40  
20  
0
VCC=12V  
VCC=5V  
VCC=2.5V  
VCC=12V  
VCC=5V  
VCC=2.5V  
-20  
-40  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
-20  
0
20  
40  
60  
80  
100  
120  
Ambient Temperature (oC)  
Ambient Temperature (oC)  
Figure 6. IIBV vs. Ambient Temperature  
Figure 7. IIBI vs. Ambient Temperature  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
6
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Typical Performance Characteristics (Continued)  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
60  
50  
40  
30  
20  
10  
0
VCC=12V  
VCC=5V  
VCC=2.5V  
VCC=12V  
VCC=5V  
VCC=2.5V  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
Ambient Temperature (oC)  
Ambient Temperature (oC)  
Figure 8. Output Short Circuit Current vs.  
Ambient Temperature  
Figure 9. Supply Current vs. Ambient Temperature  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
7
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Typical Application  
VOUT+  
To primary  
R2  
IL  
AP4305  
VCC  
R4  
C1  
1.210V  
R3  
VOUT  
+
+
VCTRL  
Load  
C3  
GND  
R5  
ICTRL  
VSENSE  
R1  
R6  
500  
VOUT  
-
Rss  
R1+ R2  
(V)  
(A)  
VOUT =VREF  
×
R1  
VSENSE  
RSS  
CurrentLimit =  
Figure 10. Typical Application 1 of AP4305  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
8
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Typical Application  
VOUT  
+
To primary  
C1  
R2  
IL  
AP4305  
VCC  
R4  
1.210V  
R3  
VOUT  
+
+
VCTRL  
Load  
C3  
GND  
R5  
ICTRL  
VSENSE  
R1  
R6  
500  
VOUT  
-
Rss  
R1+ R2  
R1  
(V)  
VO = [VREF + (IL × RSS )]×  
− (IL × RSS )  
UT  
VSENSE  
(A)  
CurrentLimit =  
RSS  
Figure 11. Typical Application 2 of AP4305  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
9
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Typical Application  
VOUT+  
To primary  
C1  
R2  
IL  
AP4305  
VCC  
R4  
1.210V  
R3  
VOUT  
+
+
VCTRL  
Load  
C3  
GND  
R5  
ICTRL  
VSENSE  
R1  
R6  
500  
VOUT  
-
Rss  
R1+ R2  
R1  
(V)  
VOUT =VREF  
×
− (IL × RSS )  
VSENSE ×VREF  
VSENSE +VREF × RSS  
(A)  
CurrentLimit =  
(
)
Figure 12. Typical Application 3 of AP4305  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
10  
Data Sheet  
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305  
Mechanical Dimensions  
SOT-23-6  
Unit: mm(inch)  
0°  
8°  
2.820(0.111)  
3.020(0.119)  
0.300(0.012)  
0.200(0.008)  
0.400(0.016)  
0.300(0.012)  
0.600(0.024)  
6
5
4
Pin 1 Dot by Marking  
1
2
3
0.700(0.028)REF  
0.950(0.037)TYP  
0.100(0.004)  
0.200(0.008)  
0.000(0.000)  
0.100(0.004)  
1.800(0.071)  
2.000(0.079)  
1.050(0.041)  
1.250(0.049)  
1.050(0.041)  
1.150(0.045)  
Apr. 2007 Rev. 1. 5  
BCD Semiconductor Manufacturing Limited  
11  
http://www.bcdsemi.com  
IMPORTANT NOTICE  
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-  
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any  
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use  
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or  
other rights nor the rights of others.  
MAIN SITE  
BCD Semiconductor Manufacturing Limited  
BCD Semiconductor Manufacturing Limited  
- Wafer Fab  
- IC Design Group  
Shanghai SIM-BCD Semiconductor Manufacturing Limited  
800, Yi Shan Road, Shanghai 200233, China  
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008  
Advanced Analog Circuits (Shanghai) Corporation  
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China  
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673  
REGIONAL SALES OFFICE  
Shenzhen Office  
Taiwan Office  
BCD Semiconductor (Taiwan) Company Limited  
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, 30920 Huntwood Ave. Hayward,  
USA Office  
BCD Semiconductor Corporation  
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office  
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office  
Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Taiwan  
CA 94544, U.S.A  
Tel: +86-755-8826 7951  
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Tel: +886-2-2656 2808  
Fax: +886-2-2656 2806  
Tel : +1-510-324-2988  
Fax: +1-510-324-2788  

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