AP3768 DIODES | Alldatasheet
Document overview
- Manufacturer or author: Diodes Incorporated
- PDF pages: 9
Technical content
Features
Primary Side Control for Eliminating Opto -coupler and Secondary CV/CC Control Circuitry 30mW No-load Input Power Programmable Output Cable Voltage Drop Compensation Proprietary CC Tightening Technique to Achieve Vertical CC Profile Compensation for External Component Temperature Variations Flyback Topology in DCM Operation Random Frequency Adjustment to Reduce System EMI Built-in Soft Start Over Voltage Protection Short Circuit Protection SO-8 Package Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments (Top View) CS VCC OUT GND BIAS CPR FB CPC SO-8
Applications
Adapter/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus LED Driver Standby and Auxiliary Power Supplies 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 Hal ogen- 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.
Document number: DS37715 Rev. 2 - 2 2 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Typical Applications Circuit AC 85- 264V +C2 R12 C11 L1 T1 CN1 FB R13R5 R16OUT VCC R15 CS CPR CPC BIAS GND R11 R14 D4~D7 R3 AP3768 R10 5V/700mA 5V/0.7A Output for Battery Charger of Mobile Phone Pin Descriptions Pin Number Pin Name Function
1 CS The primary current sense
2 VCC Supply voltage
3 OUT This pin drives the base of external power NPN switch
4 GND Ground
5 CPC This pin connects a capacitor for output cable compensation
6 FB The voltage feedback from the auxiliary winding
7 CPR Connects a resistor to FB pin for adjustable output cable compensation
8 BIAS This pin sets the bias current inside AP3768 with an external resistor to GND
Document number: DS37715 Rev. 2 - 2 3 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Functional Block Diagram Regulator Bias OVP OCkP pfm tONS UVLO COMP EA UVLO CV_ctrl pfm Driver R Q S R Q S tONS CC_CTRL FB CS CPC VCC BIAS OUT GND CPR Cable Compensation Constant Voltage Control Peak Voltage Control & LEB Constant Current Control tONSEC Detector 0.1V VFB 5 7 Absolute Maximum Ratings (Note 4) Parameter Rating Unit Voltage at VCC Pin to GND -0.3 to 36 V Voltage at CS, OUT to GND -0.3 to 7 V FB Input -40 to 10 V Output Current at OUT Internally limited A Operating Junction Temperature +150 oC Storage Temperature -65 to +150 oC Lead Temperature (Soldering, 10s) +300 oC Thermal Resistance Junction-to-Ambient 190 oC/W ESD (Machine Model) 200 V ESD (Human Body Model) 2000 V 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 Condi tions” i s not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Document number: DS37715 Rev. 2 - 2 4 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Recommended Operating Conditions Symbol Parameter Min Max Unit VCC Power Supply Voltage 12 30 V TA Ambient Temperature -40 +85 °C Electrical Characteristics (VCC=15V, TA=-40 to +85°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit UVLO SECTION VTH (ST) Start-up Threshold – 17 18.5 21 V VOPR(min) Minimal Operating Voltage – 8.2 9.2 10.2 V REFERENCE VOLTAGE VBIAS BIAS Pin Voltage RBIAS=200k, After Turn On 1.0 1.1 1.2 V STANDBY CURRENT SECTION IST Start-up Current VCC=VTH (ST)-0.5V, RBIAS=200k, Before start-up – – 0.6 A ICC(OPR) Operating Current RBIAS=200k – 390 480 A DRIVE OUTPUT SECTION IOUT OUT Maximum Current Source RBIAS=200k 28 36 44 mA CURRENT SENSE SECTION VCS Current Sense Threshold – 490 513 535 mV VCS(PRE) Pre-Current Sense – 390 413 435 mV – Leading Edge Blanking – – 500 – ns FEEDBACK INPUT SECTION IFB Feedback Pin Input Leakage Current VFB=4V 1.8 2.4 3.0 A VFB Feedback Threshold – 3.97 4.03 4.09 V VFB(EN) Enable Turn-on Voltage – -2.0 -1.7 -1.4 V OUTPUT VOLTAGE COMPENSATION SECTION VCPR CPR Voltage DONS (tONS/t): from 55% to 0.02% 1.5 – 3.5 V ICPR CPR Sink Current – – – 200 A PROTECTION SECTION VFB(OVP) Over Voltage Protection – 7 8 9 V
Document number: DS37715 Rev. 2 - 2 5 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT 100 200 300 400 500 Source Current (mA) RBIAS (k Performance Characteristics Start-up Voltage vs. Ambient Temperature Minimal Operating Voltage vs. Ambient Temperature Operating Current vs. Ambient Temperature VBIAS vs. Ambient Temperature Source Current vs. RBIAS IFB vs. Ambient Temperature -40 -20 0 20 40 60 80 100 120 140 17.0 17.5 18.0 18.5 19.0 19.5 20.0 Start-up Voltage (V) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 140 7.5 8.0 8.5 9.0 9.5 10.0 Minimal Operating Voltage (V) Ambient Temperature( o -40 -20 0 20 40 60 80 100 120 140 300 320 340 360 380 400 420 440 Operating Current (A) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 140 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 VBIAS (V) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 140 IFB (A) Ambient Temperature ( o
Document number: DS37715 Rev. 2 - 2 6 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Performance Characteristics (Cont.) Minimal Frequency vs. RBIAS
Ordering Information
PackingPackageProduct Name M: SO-8 RoHS/Green G1: GreenTR: Tape & Reel Blank: Tube Package Temperature Range Part Number Marking ID Packing SO-8 -40 to +85oC AP3768M-G1 3768M-G1 50/Tube AP3768MTR-G1 3768M-G1 4000/Tape & Reel Marking Information (Top View) 160 180 200 220 240 260 280 300 320 340 360 Minimal Frequency (Hz) RBIAS () 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.
Document number: DS37715 Rev. 2 - 2 7 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Package Outline Dimensions (All dimensions in mm(inch).) (1 ) Package Type: SO-8 0 ° 8 ° 1 ° 7 ° R0.150(0.006) R0.150(0.006) 1.000(0.039) 0.300(0.012) 0.510(0.020) 1.350(0.053) 1.750(0.069) 0.100(0.004) 0.300(0.012) 3.800(0.150) 4.000(0.157) 7 ° 20:1 D 1.270(0.050) TYP 0.150(0.006) 0.250(0.010) 8 ° D 5.800(0.228) 6.200(0.244) 0.600(0.024) 0.725(0.029) 0.320(0.013) 8 ° 0.450(0.017) 0.820(0.032) 4.700(0.185) 5.100(0.201) Note: Eject hole, oriented hole and mold mark is optional. Option 1 Option 1 Option 2 0.350(0.014) TYP TYP TYP 9°~ 9°~
Document number: DS37715 Rev. 2 - 2 8 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT Suggested Pad Layout (1 ) Package Type: SO-8 Grid placement courtyard ZG Y E X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch)
Document number: DS37715 Rev. 2 - 2 9 of 9 www.diodes.com July 2017 © Diodes Incorporated AP3768 NEW PRODUCT 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 he rein. Diodes 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 unintend ed or unauthorized 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 the safety and regulatory ramifications of their life support d evices 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 Incorporated 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 Incor porated 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 © 2017, Diodes Incorporated www.diodes.com