A Product Line of Diodes Incorporated AP4340S DYNAMIC PSR ACCELERATOR NEW PRODUCT Description Pin Assignments The AP4340S is an output voltage detector for Primary Side Control System. It is a low power loss solution. It detects the output voltage and provides a periodical signal when the output voltage is lower than a certain threshold. The periodical signal can be coupled by the transformer to the primary side and provided as an awakening signal for the main primary side controller. By fast response to secondary side voltage, the AP4340S can effectively improve the transient performance of Primary Side Control System. (Top View) GND 3 AP4340S will enable a discharge circuit when it detects the output voltage is higher than a certain threshold. The AP4340S is available in SOT23 package. 1 2 VCC OUT SOT23 Features Fast Detector of Supply Voltages 33kHz Output Pulse No External Components Low Power Loss for Green Mode Applications Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: Applications Adapters/Chargers for Cell/Cordless Phones, ADSL Modems, MP3 and Other Portable Apparatus Standby and Auxiliary Power Supplies 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 FR1 TR1 L1 D8 C4 R11 R1 D1,D2, D3,D4 + C1 C2 R13 R14 + D7 + OUT VCC GND R12 C5 + C6 IC2 AP4340S VO L2 D6 C3 R2 R9 Q1 IC1 AP 3785 NC VCC CBC GND R10 CY1 D5 OUT R5 FB EM CS R6 R8 R7 AP4340S Document number: DS37278 Rev. 4 - 2 1 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Pin Number Pin Name Function 1 VCC Power supply pin, connected with one end of the secondary winding and the output capacitor 2 OUT Secondary detecting pin, connected with the other end of the secondary winding 3 GND GND pin, connected with secondary side GND of the system Functional Block Diagram VCC 1 2 OUT VCC UVLO VREF + - VREF VREF OUT COMP + DYNAMIC - VDIS VDIS COMP + VREF UVLO OVP + DRIVER NEW PRODUCT Pin Descriptions Control Logic OVP VCC VCC Discharge OSC DEP_ref Regulator VREF VDD 3 GND AP4340S Document number: DS37278 Rev. 4 - 2 2 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Absolute Maximum Ratings (Note 4) Rating Unit Supply Voltage Parameter -0.3 to 9 V Voltage at OUT -40 to 7 V Voltage from VCC to OUT -7 to 49 V Internally limited A Power Dissipation at TA=+25ºC 1.4 W Operating Junction Temperature +150 ºC NEW PRODUCT Output Current at OUT Storage Temperature -65 to +150 ºC Lead Temperature (Soldering, 10 sec) +300 ºC Thermal Resistance (Junction to Case) 140 ºC/W Thermal Resistance (Junction to Ambient) 200 ºC/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 VCC Supply Voltage TA Ambient Temperature Range Electrical Characteristics Symbol Min Max Unit 4 5.5 V -40 +85 C (@VCC=5V, TA=+25°C, unless otherwise specified.) Parameter Conditions Min Typ Max Unit 2.5 3.1 4.6 V Supply Voltage ( VCC Pin ) Power-on Voltage – IST Startup Current VCC=VON-0.2V – 5 10 A IOP Operating Current OUT pin floating, VCC=5V 10 15 20 A VOFF Power-off Voltage – 2 2.8 4.2 V VTRI Internal Trigger Voltage – 4.65 4.73 4.8 V VON Output Section/Oscillator Section DUTY Duty Cycle VCC=4.5V 5 8.5 12 % tOSC Oscillation Period VCC=4.5V 25 30 35 s IOUT Output Maximum Current VCC=4.5V 27 34 38 mA VDIS Discharge Voltage – 5.15 5.35 5.55 V IDIS Discharge Current – 1.5 3 4.5 mA VOVP Overshoot Voltage for Discharge – 5.6 5.78 5.95 V IOVP Overshoot Current for Discharge – 120 170 240 mA Note 5: The system output voltage is 5V. AP4340S Document number: DS37278 Rev. 4 - 2 3 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Operation Description tOSC tOSC OUT VOVP NEW PRODUCT VDIS VDIS VTRI VTRI VCC VON VOFF UVLO Dynamic IOVP IVCC IDIS Figure 1. Typical Waveforms of AP4340S When VCC voltage is beyond power-on voltage (VON), the AP4340S starts up. The OUT pin asserts a periodical pulse and oscillation period is tOSC. When VCC voltage is lower than trigger voltage (VTRI), the periodical pulse in OUT pin is discontinued. When VCC voltage exceeds discharge voltage (VDIS), the discharge circuit will be enabled, a 1mA current will flow into VCC pin. When VCC voltage is higher than overshoot voltage (VOVP), AP4340S will enable a discharge circuit until the VCC voltage falls below the overshoot voltage. At the same time, the periodical pulse in OUT pin will be disabled. When the VCC voltage is below power-off voltage (VOFF), the AP4340S will be shut down. AP4340S Document number: DS37278 Rev. 4 - 2 4 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Performance Characteristics Power-off Voltage vs. Ambient Temperature Power-on Voltage vs. Ambient Temperature 3.0 3.4 3.2 2.5 3.0 VON (V) VOFF(V) 1.5 1.0 2.8 2.6 2.4 0.5 2.2 2.0 0.0 -25 0 25 50 75 100 125 -25 150 0 25 50 75 100 125 150 o Ambient Temperature ( C) o Ambient Temperature ( C) Output Current vs. Ambient Temperature Trigger Voltage vs. Ambient Temperature 40 5.0 35 4.8 IOUT (mA) VTRI (V) 30 4.6 25 4.4 20 4.2 15 10 4.0 -25 0 25 50 75 100 125 -25 150 0 25 50 75 100 125 150 o Ambient Temperature ( C) o Ambient Temperature ( C) Duty Cycle vs. Ambient Temperature Oscillation Period vs. Ambient Temperature 15 50 12 40 9 30 tOSC (s) Duty Cycle (%) NEW PRODUCT 2.0 6 20 3 10 0 0 -25 0 25 50 75 100 125 150 AP4340S Document number: DS37278 Rev. 4 - 2 -25 0 25 50 75 100 125 150 o Ambient Temperature ( C) o Ambient Temperature ( C) 5 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Performance Characteristics (Cont.) Discharge Current vs. Ambient Temperature Discharge Voltage vs. Ambient Temperature 3.0 5.6 2.5 2.0 IDIS (mA) VDIS (V) 5.2 1.5 5.0 1.0 4.8 0.5 0.0 4.6 -25 0 25 50 75 100 125 -25 150 0 50 75 100 125 150 o Overshoot Current for Discharge vs. Ambient Temperature Overshoot Voltage for Discharge vs. Ambient Temperature 6.0 200 5.8 160 5.6 120 IOVP (mA) VOVP (V) 25 Ambient Temperature ( C) o Ambient Temperature ( C) 5.4 80 40 5.2 0 5.0 -25 0 25 50 75 100 125 150 -25 0 25 50 75 100 125 150 o o Ambient Temperature ( C) Ambient Temperature ( C) Operating Current vs. Ambient Temperature 18 16 IOP (A) NEW PRODUCT 5.4 14 12 10 8 -25 0 25 50 75 100 125 150 o Ambient Temperature ( C) AP4340S Document number: DS37278 Rev. 4 - 2 6 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Ordering Information AP4340S X XX - G1 NEW PRODUCT Product Name Package Temperature Range SOT23 -40 to +150C Package Packing RoHS/Green N : SOT23 TR : Tape & Reel G1 : Green Part Number AP4340SNTR-G1 Marking ID GTA Packing 3000/Tape & Reel Marking Information (Top View) XXX AP4340S Document number: DS37278 Rev. 4 - 2 : Logo XXX: Marking ID 7 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SOT23 3.0 ° 7.0° NEW PRODUCT 0.500(0.020) 0.700(0.028) 2.0° 1.050(0.041)REF 0.0°~10.0° 0.010(0.0004) 0.100(0.004) 0.200(0.008)MIN Document number: DS37278 Rev. 4 - 2 7.0° 0.080(0.003) 0.180(0.007) 0.550(0.022)REF 1.200(0.047) 1.400(0.055) 2.300(0.091) 2.500(0.098) AP4340S R0.100(0.004) 0.900(0.035) 1.100(0.043) 2.800(0.110) 3.000(0.118) 0.890(0.035) 1.030(0.041) 0.100(0.004) GAUGE PLANE 4×R0.100(0.004) 0.300(0.012) 0.510(0.020) 1.900(0.075)REF 8 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S Suggested Pad Layout (1) Package Type: SOT23 NEW PRODUCT Grid placement courtyard Y Z G Y X E Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) Value 2.900/0.114 1.100/0.043 0.800/0.031 0.900/0.035 0.950/0.037 AP4340S Document number: DS37278 Rev. 4 - 2 9 of 10 www.diodes.com January 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP4340S 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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