A Product Line of Diodes Incorporated AP4305 CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER Description Pin Assignments The AP4305 is a highly integrated solution for a constant voltage/constant current mode SMPS application. (Top View) Pin 1 Mark The AP4305 contains one 1.21V voltage reference with0.5% accuracy, one current sensing circuit and two operational amplifiers. Combining the voltage reference with one operational amplifier makes AP4305 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. VCTRL 1 6 VCC GND 2 5 VSENSE The AP4305 is available in SOT26 package. 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 AP4305 R4 VCC 1.210V VOUT + R2 IL R3 C1 + VCTRL Load C3 GND ICTRL R5 VSENSE R1 R6 500 VOUT- Rss VOUT VREF R1 R 2 (V) R1 CurrentLimit VSENSE (A) RSS Typical Application 1 AP4305 Document number: DS37513 Rev.2 - 2 1 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Typical Applications Circuit (Cont.) VOUT+ To primary AP4305 1.210V VCC R4 VOUT + R3 R2 IL C1 Loa d + VCTRL C3 GND ICTRL R5 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 AP4305 1.210V R4 VCC VOUT + R3 R2 IL C1 + VCTRL Loa d C3 GND ICTRL R5 VSENSE R1 R6 500 VOUTRss VOUT VREF R1 R 2 ( I L RSS ) (V) R1 CurrentLimit VSENSE VREF (A) VSENSE VREF RSS Typical Application 3 AP4305 Document number: DS37513 Rev.2 - 2 2 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 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 1 VOUT VCTRL 200mV 2 4 5 ICTRL AP4305 Document number: DS37513 Rev.2 - 2 GND VSENSE 3 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Absolute Maximum Ratings (Note 4) Symbol Parameter Rating Unit 20 V -0.3 to VCC V VCC Power Supply Voltage VIN Input Voltage TJ Junction Temperature +150 o TSTG Storage Temperature -65 to +150 o TLEAD Lead Temperature (Soldering, 5sec) +260 o JC Package Thermal Resistance (Junction to Case) 92 C C C o 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 Parameter Min Max Unit VCC Power Supply Voltage 2.5 18 V TA Operating Temperature Range -40 +105 AP4305 Document number: DS37513 Rev.2 - 2 4 of 10 www.diodes.com o C September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Electrical Characteristics Symbol (VCC=5V, TA=+25oC, unless otherwise specified.) Parameter Conditions Min Typ Max TA=+25oC - 0.5 1 -40oCTA105oC - 0.6 - TA=+25oC 1 3.5 - -40oCTA105oC - 2.5 - TA=+25oC 1.204 1.21 1.216 -40oCTA +105oC 1.186 - 1.234 TA=+25oC - 50 - -40oCTA +105oC - 100 - TA=+25oC 1.5 7 - IOUT=2.5mA, TA=+25oC 198 200 202 IOUT=2.5mA, -40oCTA +105oC 192 - 208 - 25 - -40oCTA +105oC - 50 - TA=+25oC - 200 - - 27 50 - 35 - Unit TOTAL CURRENT CONSUMPTION ICC Total Supply Current Not Including the Output Sinking Current mA VOLTAGE CONTROL LOOP Gmv VREF IIBV Transconduction Gain (VCTRL). Sink Current Only mA/mV Voltage Control Loop Reference V Input Bias Current (VCTRL) nA CURRENT CONTROL LOOP Gmi VSENSE IIBI Transconduction Gain (ICTRL). Sink Current Only mV Current Control Loop Reference Current Out of Pin ICTRL at 200mV mA/mV TA=+25oC -40oCTA o A C OUTPUT STAGE VOL TA=25oC 200 IOS Low Output Voltage at 10mA Sinking Current Output Short Circuit Current. Output to VCC, Sink Current Only AP4305 Document number: DS37513 Rev.2 - 2 TA=+25oC -40oCTA -40oCTA +105oC 5 of 10 www.diodes.com o C mV mA September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Performance Characteristics VREF vs. Ambient Temperature VSENSE vs. Ambient Temperature 203 1.220 1.215 VCC=12V VCC=5V VCC=2.5V 202 VSENSE (mV) VREF (V) 1.210 1.205 201 200 1.200 199 1.195 1.190 -40 -20 0 20 40 60 80 100 198 -40 120 -20 0 o 80 100 Ambient Temperature ( C) IIBV vs. Ambient Temperature IIBI vs. Ambient Temperature 120 45 VCC=12V VCC=5V VCC=2.5V VCC=12V VCC=5V VCC=2.5V 40 35 IIBI (A) 60 IIBV (nA) 60 Ambient Temperature ( C) 80 40 30 20 25 0 20 -20 0 20 40 60 80 100 15 -40 120 -20 0 20 40 60 80 100 120 o o Ambient Temperature ( C) Ambient Temperature ( C) Output Short Circuit Current vs. Ambient Temperature Supply Current vs. Ambient Temperature 60 1.6 1.4 50 VCC=12V VCC=5V VCC=2.5V 1.2 Supply Current (mA) Output Short Circuit Current (mA) 40 o 100 -20 -40 20 40 30 20 VCC=12V VCC=5V VCC=2.5V 10 1.0 0.8 0.6 0.4 0.2 0 -40 -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) AP4305 Document number: DS37513 Rev.2 - 2 0.0 -40 -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) 6 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Ordering Information AP4305 X XX - XX Product Name Package Temperature Range SOT26 -40 to +105C Package Packing K: SOT26 TR: Tape & Reel Part Number AP4305KTR-G1 RoHS/Green Marking ID G2B G1: Green Packing 3000/Tape & Reel Marking Information (Top View) : Logo XXX: Marking ID (See Ordering Information) AP4305 Document number: DS37513 Rev.2 - 2 7 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 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) AP4305 Document number: DS37513 Rev.2 - 2 8 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 Suggested Pad Layout (1) Package Type: SOT26 E E Y G Z X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) Value 3.600/0.142 1.600/0.063 0.700/0.028 1.000/0.039 0.950/0.037 AP4305 Document number: DS37513 Rev.2 - 2 9 of 10 www.diodes.com September 2014 (c) Diodes Incorporated A Product Line of Diodes Incorporated AP4305 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). 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Copyright (c) 2014, Diodes Incorporated www.diodes.com AP4305 Document number: DS37513 Rev.2 - 2 10 of 10 www.diodes.com September 2014 (c) Diodes Incorporated Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Diodes Incorporated: AP4313UKTR-G1 AP4305KTR-G1 AP4305UKTR-G1