AP1680
Document overview
- Manufacturer or author: Diodes Incorporated
- PDF pages: 9
Technical content
Features
Primary Side Control for Rectangular Constant Current and Constant Voltage Output Sub-microampere Start-up Current 30mW No-load Input Power Feasible Tight CC Regulation Performance Eliminates Opto-coupler and Secondary CV/CC Control Circuitry Eliminates Control Loop Compensation Circuitry Flyback Topology in DCM Operation Random Frequency Modulation to Reduce System EMI Built-in Soft Start Open Feedback Protection Short Circuit Protection SOT-23-6 Package For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Pin Assignments (Top View) SOT-23-6
Applications
LED Drivers Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus Standby and Auxiliary Power Supplies NOT RECOMMENDED FOR NEW DESIGN - NO ALTERNATE PART
Document number: DS42829 Rev. 1 - 3 2 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Typical Applications Circuit +C1 +C4 VO+ VO- Rs Q1 R6 D1C2 VCC OUT FBCS GND AP1680 Ns + R5 C3 D3R2 NVFB NVP 2, 5 Pin Descriptions Pin Number Pin Name Function
1 OUT This pin drives the base of external power NPN switch
2, 5 GND Ground
3 VCC Supply voltage
4 CS The primary current sense
6 FB The voltage feedback from the auxiliary winding
Document number: DS42829 Rev. 1 - 3 3 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Functional Block Diagram Regulator Bias Tonsec Detector 0.1V 4.0V pfm Tons COMP EA UVLO CV_ctrl pfm Driver R Q S R Q S CC_ctrl 2, 5 OCkP Peak Current Control & LEB Constant Current Control Tons Constant Voltage Control FB VCC CS OUT GND
Document number: DS42829 Rev. 1 - 3 4 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Absolute Maximum Ratings (Note 1) Parameter Value Unit Supply Voltage VCC -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 °C Storage Temperature -65 to +150 °C Lead Temperature (Soldering, 10s) +300 °C Thermal Resistance Junction-to-Ambient 250 °C/W ESD (Machine Model) 200 V ESD (Human Body Model) 2000 V Note 1: Stresses greater than those listed under Absolute Maximum Ratings can cause permanent damage to the device. Exposure to Absolute Maximum Ratings for extended periods can affect device reliability. Electrical Characteristics (VCC = 15V, TA = +25°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit UVLO SECTION VTH (ST) Start-up Threshold — 16 18.5 21 V VOPR(min) Minimal Operating Voltage — 7.2 9 10.2 V STANDBY CURRENT SECTION IST Start-up Current VCC = VTH (ST)-0.5V, Before start-up — — 0.6 μA ICC(OPR) Operating Current Static — 200 320 μA DRIVE OUTPUT SECTION IOUT OUT Maximum Current Sink 50 — — mA Source 24 30 36 CURRENT SENSE SECTION VCS Current Sense Threshold — 455 510 545 mV eqVcs, eqVcs, Equivalent Current Sense Voltage Accuracy Note 2 — — 3 % VCS(PRE) Pre-Current Sense — 365 410 455 mV — Leading Edge Blanking — — 750 — ns FEEDBACK INPUT SECTION IFB Feedback Pin Input Leakage Current VFB = 4V 2.0 2.5 3.1 μA VFB Feedback Threshold — 3.59 3.83 4.07 V Note 2: The output current is given by IOUT= Ns NpxRcs eqVcs, .
Document number: DS42829 Rev. 1 - 3 5 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Performance Characteristics Start-up Voltage vs. Ambient Temperature Minimal Operating Voltage vs. Ambient Temperature Operating Current vs. Ambient Temperature IFB vs. Ambient Temperature -40 -20 0 20 40 60 80 100 120 Start-up Voltage (V) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 7.5 8.0 8.5 9.0 9.5 10.0 10.5 Minimal Operating Voltage (V) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 100 120 140 160 180 200 220 240 260 280 300 Operating Current (A) Ambient Temperature ( o -40 -20 0 20 40 60 80 100 120 IFB (A) Ambient Temperature ( o
Document number: DS42829 Rev. 1 - 3 6 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680
Ordering Information
PackingPackageProduct Name TR : Tape & ReelK6 : SOT-23-6 G1 : RoHS Compliant and Green RoHS/Green Package Temperature Range Part Number Marking ID Packing SOT-23-6 -40 to +105°C AP1680K6TR-G1 GBF Tape & Reel
Document number: DS42829 Rev. 1 - 3 7 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Package Outline Dimensions (All dimensions in mm(inch).) Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SOT-23-6 2.820(0.111) 3.100(0.122) 2.650(0.104) 3.000(0.118) 1.500(0.059) 1.700(0.067) 0.950(0.037)TYP 1.800(0.071) 2.000(0.079) 0.300(0.012) 0.500(0.020) 0.700(0.028)REF 0.100(0.004) 0.200(0.008) 0.200(0.008) 0.300(0.012) 0.600(0.024) 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) 1.450(0.057) MAX 1 2 3 456 Pin 1 Mark
Document number: DS42829 Rev. 1 - 3 8 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SOT-23-6 E E G Z Y X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch)
Document number: DS42829 Rev. 1 - 3 9 of 9 www.diodes.com May 2020 © Diodes Incorporated AP1680 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. 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 th is 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 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 name s 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 systems without the ex press 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 Incor porated. Further, Customers must fully indemnify Diodes Incorporated 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 © 2020, Diodes Incorporated www.diodes.com