AP3968 DIODES | Alldatasheet
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Primary Side Control for Eliminating Opto-coupler and Secondary CV/CC Control Circuitry Built-in NPN Transistor with 700VCBO Low Start-up Current: 0.2A (Typ.) Internal Output Cable Voltage Drop Compensation Random Frequency Modulation for Low EMI Short Circuit Protection Low Total Cost Solution Output Power Range (Note 1): AP3968 for 5W Adapter AP3969 for 7.5W Adapter AP3970 for 12W Adapter Totally Lead-free & Fully RoHS Compliant (Note 2 & 3) Halogen and Antimony Free. “Green” Device (Note 4) Notes: 1. Typical continuous power in a non-ventilated enclosed adapter measured at +50°C ambient. 2. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 3. 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. 4. Halogen- and Antimony-free "Green” products are defined as those which contain < 900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Pin Assignments (Top View) SO-7 (M Package) PDIP-7 (P7 Package) PDIP-8 (P Package) For AP3968 For AP3969/70 For AP3970 CPC FB VCC CS C C GND
Document number: DS36759 Rev. 2 - 2 2 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Typical Applications Circuit AC 90-264V D1 to D4 FB CVCC CS CPCC8 C11 Np Ns Nfb C5 R6 Vo+ Vo- C10 GND D12 + C12 R11 R12 C13 R10 R9R7 Typical Application of AP3969 (9V/800mA) Item Function QTY Item Function QTY C1 10.0F/400V, electrolytic 1 U1 AP3969 1 C2 4.7F/400V, electrolytic 1 R1 11, 2W 1 C3 3.3F/50V, electrolytic 1 R3 3.3M/0.25W 1 C5 1nF/1kV, ceramic 1 R5 3.9, 0805 1 C8 0.01F, 0805 1 R6 150k, 1206 1 C10 1nF/250Vac, Y1 capacitor 1 R7 1, 1206 1 C11 1nF, 0805 1 R8 20k, 0805 1 C12, C13 470F/16V 2 R9 13k, 0805 1 D1 to D6 1N4007, rectifier diode 6 R10 360, 0805 1 D12 MBR3100 1 R11 27, 0805 1 L1 470H, inductor 1 R12 1.2k, 0805 1 L2 Bead, 0805 1 T1 EE16 core, PC40, transformer 1
Document number: DS36759 Rev. 2 - 2 3 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Pin Descriptions Pin Number Pin Name Function SO-7/PDIP-7 PDIP-8 1 1 CPC This pin connects a capacitor to GND for output cable compensation 2 2 FB The voltage feedback from auxiliary winding 3 3 VCC This pin receives rectified voltage from the auxiliary winding of the transformer 4 4 CS Current sense for primary side of transformer 5, 6 5, 6 C This pin is connected with an internal power BJT’s collector – 7 NC Not connected 7 8 GND This pin is the signal reference ground Functional Block Diagram Regulator Bias OVP OCkP 0.1V VFB pfm Tons UVLO COMP EA UVLO CV_ctrl pfm Driver R Q S R Q S Tons CC_ctrl FB CSCPC VCC C GND Cable Drop Compensation Constant Voltage Peak Current Control& LEB Constant Current Control Tonsec Detector Line Voltage Compensation Audible Noise Suppression Buffer 1 (1) 2 (2) 3 (3) 4 (4) 5,6 (5,6) 7 (8) A(B) A for SO-7/PDIP-7 B for PDIP-8
Document number: DS36759 Rev. 2 - 2 4 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Absolute Maximum Ratings (Note 5) Symbol Parameter Rating Unit VCC Supply Voltage -0.3 to 22 V VFB FB Input Voltage -1 to 10 V VCBO Collector-emitter Voltage 700 V – Collector DC Current AP3968/69 1.5 A AP3970 4 TJ Operating Junction Temperature +150 °C TSTG Storage Temperature -65 to +150 °C TLEAD Lead Temperature (Soldering, 10 sec) +300 °C – ESD (Machine Model) 200 V – ESD (Human Body Model) 2000 V PD Total Power Dissipation AP3968 0.7 W AP3969 0.9 AP3970 1.1 Note 5: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are str ess 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 Supply Voltage – 22 V TOP Operating Temperature Range -40 +85 °C f(MAX) Maximum Operating Frequency – 60 kHz Thermal Impedance Symbol Parameter Value Unit θJA Junction to Ambient AP3968 100 °C/W AP3969 80 AP3970 65 θJC Junction to Case AP3968 50 AP3969 40 AP3970 35
Document number: DS36759 Rev. 2 - 2 5 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Electrical Characteristics (@VCC=15V, TJ=+25° C, unless otherwise specified.) Symbol Parameters Conditions Min Typ Max Unit UVLO SECTION VON Turn-on Voltage – 13 15 17 V VOFF Turn-off Voltage No drive Current 4.5 5.3 6.3 V STANDBY CURRENT SECTION IST Start-up Current VCC=VON-0.5V – 0.2 0.6 μA ICC Operating Current – 320 435 550 FEEDBACK INPUT SECTION VFB FB Threshold Voltage – 4.23 4.3 4.37 V IFB FB Pin Input Current VFB=4V 1.5 3.5 5.5 μA POWER TRANSISTOR SECTION VCE(SAT) Collector-emitter Saturation Voltage AP3968/69: IC=0.5A AP3970: IC=1A – – 0.3 V hFE DC Current Gain AP3968/69 14 17 – – AP3970 17 26 – – ICEO Leakage Current – – – 60 nA OVER TEMPERATURE PROTECTION TSHDN Shutdown Temperature – +125 +160 – °C – Temperature Hysteresis – – +40 – °C
Document number: DS36759 Rev. 2 - 2 6 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated -40 -20 0 20 40 60 80 100 120 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 Turn-on Voltage (V) Ambient Temperature ( o 125 -40 -20 0 20 40 60 80 100 120 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Turn-off Voltage (V) Ambient Temperature ( o 125 -40 -20 0 20 40 60 80 100 120 300 350 400 450 500 550 600 Operating Current (A) Ambient Temperature ( o 125 Performance Characteristics Turn-on Voltage vs. Ambient Temperature Turn-off Voltage vs. Ambient Temperature Operating Current vs. Ambient Temperature
Document number: DS36759 Rev. 2 - 2 9 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Operation Description (Cont.) At the instant of D1 turn-on, the primary current transfers to the secondary at an amplitude of: IpkN NIpks S P …………(8) Thus the output constant current is given by: IpkN N 2Iout S P …………(9) Leading Edge Blanking (LEB) When the power switch is turned on, a turn-on spike on the output pulse rising edge will occur on the sense -resistor. To avoid false termination of the switching pulse, a typical 500ns leading edge blanking is built in. During this blanking period, the current sense comparator is disabled and the gate driver cannot be switched off. The built-in LEB in AP3968/69/70 has shorter delay time from current sense terminal to output pulse than those IC solutions adopting external RC filter as LEB. Built-in Cable Compensation The AP3968/69/70 has built-in fixed voltage of 0.35V typical to compensate the drop of output cable when the load is changed from zero to full load. A typical 0.01F external capacitor connected to the CPC pin is used to smooth voltage signal for cable compensation. Over Temperature Protection The AP3968/69/70 has internal thermal sensing circuit to shut down the PFM driver output when the die temperature reac hes +160ºC typical. When the die temperature drops about 40ºC, the IC will recover automatically to normal operation.
Ordering Information
TR : Tape & ReelM : SO-7 G1 : Green Product Name RoHS/GreenProduct Version 68 : AP3968 69 : AP3969 70 : AP3970 P7 : PDIP-7 Blank : Tube P: PDIP-8 Diodes IC’s Pb-free products with "G1" suffix in the part number, are RoHS compliant and green. Package Temperature Range Part Number Marking ID Packing SO-7 -40°C to +85°C AP3968MTR-G1 AP3968M-G1 4000/Tape & Reel PDIP-7 AP3969P7-G1 AP3969P7-G1 50/Tube AP3970P7-G1 AP3970P7-G1 50/Tube PDIP-8 AP3970P-G1 AP3970P-G1 50/Tube
Document number: DS36759 Rev. 2 - 2 10 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Marking Information First and Second Lines: Logo and Marking ID Third Line: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: 7th and 8th Digits of Batch No. First Line: Logo and Marking ID Second Line: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: 7th and 8th Digits of Batch No.
Document number: DS36759 Rev. 2 - 2 11 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SO-7 3.800(0.150) 4.000(0.157) 1.270(0.050) TYP 4.700(0.185) 5.100(0.201) 0.330(0.013) 0.510(0.020) 0.190(0.007) 0.250(0.010) 0.100(0.004) 0.250(0.010) 1.350(0.053) 1.750(0.069) 0.450(0.017) 0.800(0.031)8° 5.800(0.228) 6.200(0.244) 2.54(0.100) TYP 1.250(0.049) 1.500(0.059) Note: Eject hole, oriented hole and mold mark is optional.
Document number: DS36759 Rev. 2 - 2 12 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Package Outline Dimensions (Cont.) (All dimensions in mm (inch).) (2) Package Type: PDIP-7 8.400(0.331) 9.000(0.354) 0.204(0.008) 0.360(0.014) 7.320(0.288) 9.000(0.354) 9.400(0.370) 3.710(0.146) 4.310(0.170) 3.000(0.118) 3.600(0.142) 2.540(0.100)BSC 6.200(0.244) 6.600(0.260) 3.200(0.126) 3.600(0.142) 0.510(0.020)MIN 1.524(0.060) BSC Note: Eject hole, oriented hole and mold mark is optional. 0.380(0.015) 0.570(0.022) 7.920(0.312)
Document number: DS36759 Rev. 2 - 2 13 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Package Outline Dimensions (Cont.) (All dimensions in mm (inch).) (3) Package Type: PDIP-8 R0.750(0.030) 0.254(0.010)TYP 0.130(0.005)MIN 8.200(0.323) 9.400(0.370) 0.204(0.008) 0.360(0.014) 7.620(0.300)TYP 0.700(0.028) 9.000(0.354) 9.600(0.378) 3.710(0.146) 4.310(0.170) 3.000(0.118) 3.600(0.142) 0.360(0.014) 0.560(0.022) 2.540(0.100) TYP 6.200(0.244) 6.600(0.260) 3.200(0.126) 3.600(0.142) 0.510(0.020)MIN Φ3.000(0.118) Depth 0.100(0.004) 0.200(0.008) 1.524(0.060) TYP Note: Eject hole, oriented hole and mold mark is optional.
Document number: DS36759 Rev. 2 - 2 14 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated Suggested Pad Layout (1) Package Type: SO-7 ZG E X Y Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) (mm)/(inch)
Document number: DS36759 Rev. 2 - 2 15 of 15 www.diodes.com December 2013 © Diodes Incorporated AP3968/69/70 A Product Line of Diodes Incorporated 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. Di odes 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 unde r 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 Diod es 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. Should Customers purchase or use Diodes Incorporated products for any unintended or un authorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t 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 nam es 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 system s 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 i n 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 th e 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 Incorporate d 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 Incorpora ted 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 © 2013, Diodes Incorporated www.diodes.com