AP1685MTR-G1 Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE AP1694AS-13 AP1685 OFFLINE, HIGH PF, HIGH EFFICIENCY LED DRIVER IC Description Pin Assignments The AP1685 is a high performance AC/DC power factor corrector for (Top View) mains dimmable LED driver applications. The device uses Pulse Frequency Modulation (PFM) technology to regulate output current while achieving high power factor and low THD. It operates as a BCM Drain S 1 7 (Boundary Conduction Mode) which is good for EMI. CS 2 The AP1685 internally integrates a 500V high voltage MOSFET which RI 3 6 VCC can realize a lower BOM cost. The AP1685 provides accurate constant current (CC) regulation while removing the opto-coupler and GND 5 FB 4 secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. It can meet the requirement of IEC6100-3-2 harmonic standard. SO-7 The AP1685 features low start-up current, low operation current. It adopts valley on switching mode to achieve high efficiency. It also has rich protection features including over voltage, short circuit, over Applications temperature protection. Non-dimmable LED drivers The AP1685 is available in SO-7 package. Features Boundary Conduction Mode (BCM) Operation to Achieve High- efficiency High PF and Low THD (PF>0.9, THD<30%) High Efficiency Low Start-up Current Tight LED Current Tight LED Open Voltage Valley-mode Switching to Minimize the Transition Loss Internal Integrated 2.5A/500V MOSFET can Cover up to 10W Easy EMI Internal Protections: Under Voltage Lock Out (UVLO) Leading-edge Blanking (LEB) Output Short Protection Output Open Protection Over Temperature Protection Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See NOT RECOMMENDED FOR NEW DESIGN AP1685 USE AP1694AS-13 Typical Applications Circuit L1 R9 C1 C2 + OUT C4 F1 D2 R2 VR1 AC Input T1 D1 DB1 R4 C3 R5 VCC FB R1 Drain RI R6 S CS GND R7 R8 U1 AP1685 Typical Buck Application with Auxiliary Winding D1 ZD1 L1 R8 L2 R7 F1 R2 R5 Drain S D2 CS DB1 AP1685 VCC + VR1 C1 C 2 AC R9 C4 OUT FB RI GND R6 C3 R1 Typical Floating Buck Application without Auxiliary Winding 2 of 14 AP1685 April 2018 Diodes Incorporated www.diodes.com Document number: DS37311 Rev. 2 - 3