FL7701MX ON Semiconductor

DATA SHEET www.onsemi.com Smart LED Lamp Driver IC with PFC Function SOIC8 CASE 751EB FL7701 Description MARKING DIAGRAM The FL7701 LED lamp driver is a simple IC with PFC function. The special adopted digital technique of the IC can automatically detect input voltage condition and send an internal reference signal for Y&Z&2&K achieving high power factor. When AC input is applied to the IC, PFC FL7701 function is automatically enabled. Otherwise, when DC input is applied to the IC, PFC function is automatically disabled. The FL7701 does not need a bulk capacitor (electrolytic capacitor) for supply rail stability, which can significantly affect to LED lamp system. FL7701 = Device Code Features Y = onsemi Logo Digitally Implemented Active PFC Function (No Additional Circuit &Z = Assembly Plant Code &2 = 2Digit Date Code Format Necessary for High PF) &K = 2Digits Lot Run Traceability Code Builtin HV Supplying Circuit: Self Biasing Application Input Range: 80 V ~308 V AC AC AOCP Function with AutoRestart Mode ORDERING INFORMATION Builtin OverTemperature Protection Function See detailed ordering and shipping information on page 10 of CyclebyCycle Current Limit this data sheet. CurrentSense Pin Open Protection Low Operating Current: 0.85 mA (Typical) UnderVoltage Lockout with 5 V Hysteresis Programmable Oscillation Frequency Programmable LED Current Analog Dimming Function SoftStart Function Precise Internal Reference: 3% Applications LED Lamp for Decorative Lighting LED Lamp for LowPower Lighting Related Resources Evaluation Board: FEBFL7701 L30U003A Semiconductor Components Industries, LLC, 2011 1 Publication Order Number: November, 2021 Rev. 2 FL7701/DFL7701 APPLICATION DIAGRAM BD L1 LED D1 L3 Fuse C1 C2 CS HV D2 OUT NV Q1 VCC GND R2 RT ADIM C3 U1 R1 C4 R3 L2 Figure 1. Typical Application BLOCK DIAGRAM 8 HV VCC 3 VCC JFET ZCD UVLO time I AD ZCD DAC ADIM 5 TSD Soft start Digital Block S Oscillator Q 2 OUT RT 4 Reference R + LEB 1 CS Leading Edge GND 6 Blanking + AOCP 2.5 V Figure 2. Block Diagram www.onsemi.com 2