A Product Line of Diodes Incorporated AP1688 Description Features The AP1688 is a high performance AC/DC PFC and constant current controller for universal mains LED driver applications. The device is a buck controller which operates as a boundary conduction mode (BCM) to achieve high efficiency and easy EMI. An open loop algorithm is adopted in the AP1688, which will make the system achieve excellent line and load regulations with high PF for universal mains input. The AP1688 features fast start-up, low start-up current, low operation current and high efficiency. It also has rich protection features including over voltage, short and open circuit, over current, over temperature protection. The AP1688 is available in SO-8 package. Pin Assignments (Top View) NC 1 8 VCC VS 2 7 OUT VA 3 6 GND CS 4 5 FB Optimized for Buck Topology Boundary Conduction Mode (BCM) Operation to Achieve High Efficiency High Power Factor > 0.9 High Efficiency > 90% System Current Accuracy: ±5% Good Line Regulation and Load Regulation Low Start-up Current Tight CC Regulation Performance for Universal Input Mains Voltage Range Eliminates Control Loop Compensation Circuitry Easy EMI Open-load and Reload Detection Over Temperature Protection Over Current Protection Over Voltage and Short and Open Circuit Protection Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Applications Universal Mains LED lighting (SO-8/ M Package) Notes: 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 L1 BD1 C1 VAC + C2 D1 TVS T1 D2 C3 8 2 R7 C5 Document number: DS36603 Rev. 2 - 2 R6 3 C6 VS FB 5 R3 R4 OUT CS VA - R2 VCC R5 AP1688 VOUT C4 R1 L2 AP1688 NEW PRODUCT AC/DC, HIGH PF, HIGH EFFICIENCY, UNIVERSAL MAINS LED DRIVER CONTROLLER GND 6 1 of 10 www.diodes.com Q1 7 4 R CS February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Pin Descriptions Pin Name 1 NC No connection 2 VS Detects the negative terminal voltage of output. 3 VA Detects the average value of the negative terminal voltage of output. 4 CS Primary current sensing 5 FB The feedback voltage sensing from the auxiliary winding 6 GND Ground 7 OUT Gate driver output 8 VCC Supply voltage of gate driver and control circuits of the IC NEW PRODUCT Pin Number Function Functional Block Diagram VCC 8 FB UVLO 5 0.1V - OVP ZCD Detector COMP + pro Regulator & Bias ZCD + 1.75V - UVLO R EA Q CV_CTRL Driver 7 OUT S CS VS Peak Current Control & LEB 4 2 Input Current Shaping and Constant Current Control R S Q 6 GND 3 VA AP1688 Document number: DS36603 Rev. 2 - 2 2 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified. Note 4) Symbol NEW PRODUCT Rating Unit VCC Power Supply Voltage -0.3 to 40 V IOUT Driver Output Current 300 mA Voltage at VS, VA, CS to GND -0.3 to 7 V FB Input Voltage -40 to 10 V +150 °C -65 to +150 °C VVS, VVA, VCS VFB TJ Note 4: Parameter Operating Junction Temperature TSTG Storage Temperature TLEAD Lead Temperature (Soldering, 10 sec) +300 °C PD Power Dissipation (TA = +50°C) 0.65 W θJA Thermal Resistance (Junction to Ambient) 190 °C/W – ESD (Human Body Model) 3000 V – ESD (Machine Model) 200 V 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 12 21 V TA Ambient Temperature -40 +105 °C AP1688 Document number: DS36603 Rev. 2 - 2 3 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit UVLO Section VTH (ST) NEW PRODUCT VOPR (Min) VCC_OVP Start-up Threshold – 18 19 20 V Minimum Operating Voltage After turn on 7 8 9 V VCC OVP Voltage – 28 32 36 V – – 20 µA – 1000 1300 µA 10 – – V – – 1 V Standby Current Section IST ICC (OPR) VCC = VTH (ST)-0.5V, Start-up Current Before start up Operating Current Static Drive Output Section IGD_SOURCE = 20mA VCC = 12V IGD_SINK = 20mA VCC = 12V VOH Output High Level Voltage VOL Output Low Level Voltage tR Output Voltage Rise Time CL = 1nF 100 140 190 ns tF Output Voltage Fall Time CL = 1nF 30 60 90 ns 12 13.5 15 V – – 1.1 V VO_CLAMP VUVLO IGD_SOURCE = 5mA VCC = 20V VCC = 0 to VCC_ON ISINK = 10mA Output Clamp Voltage UVLO Saturation Voltage Current Sense Section Minimum On Time – 500 1000 1500 ns Short Circuit Protection Voltage – 3 4 – V FB Pin Input Leakage Current VFB = 4V – 2 8 µA VFB (CV) CV Threshold – 3.8 4.0 4.2 V VFB (OVP) Over Voltage Protection – 4.5 6 7.5 V VVS/VVA (Max) Maximum Ratio VVS = VVA = 3V 0.8 1 1.2 V VVS/VVA (Min) Minimum Ratio VVS = 0V, VVA = 3V – – 0.2 V tON (Min) VSOCP Feedback Input Section IFB VS Input Section Over Temperature Protection Section – Shutdown Temperature – – +170 – °C – Temperature Hysteresis – – +20 – °C AP1688 Document number: DS36603 Rev. 2 - 2 4 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Performance Characteristics Supply Current vs. Supply Voltage CV Threshold vs. Supply Voltage 4.2 1200 1100 4.1 CV Threshold (V) Supply Current (A) 900 800 700 600 500 400 4.0 3.9 3.8 300 3.7 200 100 0 3.6 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 8 10 12 14 Output Clamp Voltage vs. Supply Voltage 18 20 22 24 26 28 30 Start-up Voltage vs. Ambient Temperature 15 19.4 14 19.2 13 Start-up Voltage (V) Output Clamp Voltage (V) 16 Supply Voltage (V) Supply Voltage (V) 12 11 10 9 8 19.0 18.8 18.6 18.4 7 18.2 6 5 8 10 12 14 16 18 20 22 24 26 28 18.0 -40 30 -20 0 20 40 60 80 100 120 o Supply Voltage (V) Ambient Temperature ( C) Minimal Operating Voltage vs. Ambient Temperature Start-up Current vs. Ambient Temperature 8.0 8.2 7.5 8.1 7.0 Start-up Current (A) Minimal Operating Voltage (V) NEW PRODUCT 1000 8.0 7.9 7.8 7.7 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 7.6 2.5 7.5 -40 -20 0 20 40 60 80 100 120 o Document number: DS36603 Rev. 2 - 2 -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) AP1688 2.0 -40 Ambient Temperature ( C) 5 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Performance Characteristics (Cont.) Operating Current vs. Ambient Temperature CV Threshold vs. Ambient Temperature 1250 5.0 4.8 1200 CV Threshold (V) Operating Current (A) 1100 1050 1000 4.4 4.2 4.0 3.8 3.6 950 3.4 900 850 -40 3.2 -20 0 20 40 60 80 100 3.0 -40 120 o -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) Ambient Temperature ( C) FB Leakage Current vs. Ambient Temperature 4.0 FB Input Leakage Current (A) NEW PRODUCT 4.6 1150 3.5 3.0 2.5 2.0 1.5 1.0 -40 -20 0 20 40 60 80 100 120 o Ambient Temperature ( C) AP1688 Document number: DS36603 Rev. 2 - 2 6 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Ordering Information AP1688 X XX – G1 NEW PRODUCT Product Name RoHS /Green Package Packing M : SO-8 TR : Tape & Reel G1 : Green Diodes IC’s Pb-free products with "G1" suffix in the part number, are RoHS compliant and green. Temperature Package Range SO-8 -40 to +105°C Part Number Marking ID Packing AP1688MTR-G1 1688M-G1 4000/13’’Tape & Reel Marking Information (Top View) 1688 M-G1 YWWAXX AP1688 Document number: DS36603 Rev. 2 - 2 First and Second Lines: Logo and Marking ID (See Ordering Information) Third Line: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: 7th and8th Digits of Batch No 7 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SO-8 4.700(0.185) 5.100(0.201) 7° 0.320(0. 013) TYP 1.350(0. 053) 1.750(0. 069) NEW PRODUCT 8° 7° 0.675(0. 027) 0.725(0. 029) 8° D 5.800(0. 228) 6.200(0. 244) 1.270(0. 050) TYP D 20:1 0.300(0. 012) R0.150(0.006) 0.100(0. 004) 1.000(0.039) TYP Option 1 0° 8° 3.800(0.150) 4.000(0.157) Option 1 0.300(0. 012) 0.510(0. 020) 0.150(0. 006) 0.250(0. 010) 0.900(0.035) TYP Option 2 1° 7° R0.150(0.006) 0. 450(0. 017) 0. 800(0. 031) 0.350(0.014) TYP Note: Eject hole , oriented hole and mold mark is optional . AP1688 Document number: DS36603 Rev. 2 - 2 8 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 Suggested Pad Layout Package Type: SO-8 NEW PRODUCT (1) Grid placement courtyard G Z Y E X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) Value 6.900/0.272 3.900/0.154 0.650/0.026 1.500/0.059 1.270/0.050 AP1688 Document number: DS36603 Rev. 2 - 2 9 of 10 www.diodes.com February 2015 © Diodes Incorporated A Product Line of Diodes Incorporated AP1688 IMPORTANT NOTICE NEW PRODUCT 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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