AP4305 highly integrated solution constant voltage/constant current mo
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Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER General Description
AP4305 highly integrated solution constant voltage/constant current mode SMPS application. AP4305 contains 1.21V voltage reference with 0.5% accuracy, current sensing circuit operational amplifiers. Combining voltage reference with operational amplifier makes AP4305 ideal voltage controller adapters battery chargers. other voltage reference combined with other operational amplifier makes ideal current limiter output side current sensing. AP4305 available SOT-23-6 package.
AP4305
Constant Voltage Constant Current Control Precision Internal Voltage Reference External Components Easy Compensation Supply Current: 0.5mA Operating Temperature Range: 105oC
Applications
Adapters Battery Chargers
SOT-23-6
Figure Package Type AP4305
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Configuration
Package (SOT-23-6)
AP4305
VCTRL VOUT
VSENSE ICTRL
Figure Configuration AP4305 (Top View)
Description
Number Name VCTRL VOUT ICTRL VSENSE Function Input voltage control loop Ground Output pin. Sinking current only Input current control loop Input current control loop Power supply
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Functional Block Diagram
AP4305
1.210V
VOUT
VCTRL
200mV
ICTRL
VSENSE
Figure Functional Block Diagram AP4305
Ordering Information
AP4305 Circuit Type Lead Free Blank: Lead Tape Reel Blank: Tube
Package SOT-23-6
Package SOT-23-6
Temperature Range 105oC
Part Number Lead AP4305KTR Lead Free AP4305KTR-E1
Marking Lead Lead Free
Packing Type Tape Reel
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant.
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Absolute Maximum Ratings (Note
Parameter Power Supply Voltage Input Voltage Junction Temperature Storage Temperature Lead Temperature (Soldering, 5sec) Package Thermal Resistance (Junction Case) Symbol TSTG TLEAD Value -0.3
AP4305
Unit
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability.
Recommended Operating Conditions
Parameter Power Supply Voltage Operating Temperature Range Symbol Unit
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Electrical Characteristics
(VCC=5V, TA=25oC, unless otherwise specified.)
Parameter Symbol Conditions Unit
AP4305
TOTAL CURRENT CONSUMPTION Total Supply Current Including Output Sinking Current VOLTAGE CONTROL LOOP Transconduction Gain (VCTRL). Sink Current Only TA=25oC -40oC<TA< 105oC VREF TA=25oC -40oC<TA< 105oC Input Bias Current (VCTRL) IIBV TA=25oC -40oC<TA< 105oC CURRENT CONTROL LOOP Transconduction Gain (ICTRL). Sink Current Only Current Control Loop Reference TA=25oC IOUT=2.5mA, TA=25oC IOUT=2.5mA, -40oC<TA< 105oC Current ICTRL 200mV OUTPUT STAGE Output Voltage 10mA Sinking Current Output Short Circuit Current. Output VCC, Sink Current Only TA=25oC TA=25oC -40oC<TA< 105oC IIBI TA=25oC -40oC<TA< 105oC mA/mV 1.204 1.186 mA/mV 1.21 1.216 1.234 TA=25oC -40oC<TA<105oC
Voltage Control Loop Reference
VSENSE
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Typical Performance Characteristics AP4305
1.220
1.215
1.210
VCC=12V VCC=5V VCC=2.5V
VSENSE (mV)
VREF
1.205
1.200
1.195
1.190
Ambient Temperature
Ambient Temperature
Figure VREF Ambient Temperature
Figure VSENSE Ambient Temperature
VCC=12V VCC=5V VCC=2.5V
VCC=12V VCC=5V VCC=2.5V
IIBV (nA)
IIBI (µA)
Ambient Temperature
Ambient Temperature
Figure IIBV Ambient Temperature
Figure IIBI Ambient Temperature
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Typical Performance Characteristics (Continued) AP4305
Output Short Circuit Current (mA)
Supply Current (mA)
VCC=12V VCC=5V VCC=2.5V
VCC=12V VCC=5V VCC=2.5V
Ambient Temperature
Ambient Temperature
Figure Output Short Circuit Current Ambient Temperature
Figure Supply Current Ambient Temperature
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Typical Application AP4305
VOUT+
primary
AP4305
VOUT
1.210V
VCTRL
Load
ICTRL VSENSE
VOUTRss
VOUT VREF
VSENSE
CurrentLimit
Figure Typical Application AP4305
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Typical Application AP4305
VOUT+
AP4305
primary
VOUT
1.210V
VCTRL
Load
ICTRL VSENSE
VOUT-
VOUT [VREF
VSENSE
CurrentLimit
Figure Typical Application AP4305
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Typical Application AP4305
VOUT+
primary
AP4305
VOUT
1.210V
VCTRL
Load
ICTRL VSENSE
VOUT-
VOUT VREF
VSENSE VREF (VSENSE VREF
CurrentLimit
Figure Typical Application AP4305
Apr. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet CONSTANT VOLTAGE CONSTANT CURRENT CONTROLLER Mechanical Dimensions SOT-23-6 Unit: mm(inch) AP4305
2.820(0.111) 3.020(0.119) 0.300(0.012) 0.400(0.016) 0.300(0.012) 0.600(0.024)
0.200(0.008)
2.650(0.104) 2.950(0.116)
Marking
0.700(0.028)REF
0.950(0.037)TYP 1.800(0.071) 2.000(0.079) 0.000(0.000) 0.100(0.004) 0.100(0.004) 0.200(0.008)
1.050(0.041) 1.050(0.041) 1.150(0.045) 1.250(0.049)
Apr. 2007 Rev.
1.500(0.059) 1.700(0.067)
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
MAIN SITE Semiconductor Manufacturing Limited
Wafer Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
Semiconductor Manufacturing Limited
Design Group Advanced Analog Circuits (Shanghai) Corporation Zone 900, Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
REGIONAL SALES OFFICE
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