FLS3247

Single-Stage PFC Primary-Side-Regulation Offline LED Driver with Integrated Power MOSFET

This highly integrated PWM controller with power MOSFET, FLS3247, provides several features to enhance the performance of low-power flyback converters. The proprietary topology enables simplified circuit design for LED lighting applications.

By using the single-stage topology with primary-side regulation, an LED lighting board can be implemented with the few external components and minimized cost; requiring no input bulk capacitor or feedback circuitry. To implement good power factor and low THD, constant on-time control is utilized with an external capacitor connected to COMI.

Precise constant-current control regulates accurate output current versus changes in input voltage and output voltage. The operating frequency is proportionally changed by the output voltage to guarantee DCM operation with higher efficiency and simple design.

FLS3247 provides protection features such as open-LED, short-LED, and over-temperature protection. The current-limit level is automatically reduced to minimize the output current and protect external components in short-LED condition.

Features

  • Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry
  • Power-Factor Correction (PFC)
  • Integrated Power MOSFET
  • Accurate Constant-Current (CC) Control Independent Online Voltage, Output Voltage, and Magnetizing Inductance Variation
  • Linear Frequency Control for Increased Efficiency
  • Open- / Short-LED Protection
  • Cycle-by-Cycle Current Limiting
  • Over-Temperature Protection with Auto Restart
  • Low Startup Current: 20μA
  • Low Operating Current: 5mA
  • VDD Over-Voltage Protection (OVP)
  • VDD Under-Voltage Lockout (UVLO)
  • Application Voltage Range: 80VAC ~ 308VAC
  • Retrofit E17/E26/E27 and PAR Lamps
  • Replacement of Incandescent, CFL, and Linear Lamps
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Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
Convention*
Qualification
Support
Compliance
Certificates
FLS3247N Full Production
Green as of Sep 2011
 China RoHS
$0.936

MDIP 7L  -  Details
3.4 x 6.4 x 9.2mm,  RAIL

PDF MDIP 7L  Drawing
Last Update: May 2016 PDF MDIP-7L, PACKING DRAWING
Last Update: May 2013 PDF Dip 7 Tube drawing
Last Update: Jan 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2S3247

Line 3NC

FIT [Calculate] 2.37 @55°C
MTBF 4.22E8

ESD (HBM) 5000V

RƟJA 95°C/W

RƟJC 25°C/W

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS

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* Click here for further top mark packaging information for FLS3247

  • Lighting
Application Document Number Featured Products Output
Power
Input
Voltage
Topology
LED Lighting PDFRD-L042
10 W 90 - 265 V<sub>AC</sub> PFC PSR Flyback with Integrated MOSFET
Application Note Description
AN-FEBL042 PDFUser Guide for FEBFLS3247N_L42U010A Evaluation Board Universal Input 10W LED Driver (PFC PSR Flyback)
Last Update : 12-Oct-2012

Distributor Inventory

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Product
Ea
(0.3 - 1.4)
Confidence
(0.6-0.9)
T use (°C)
T Stress (°C)
Kt (eV/K)
Device Hours
@ T Stress
(devices*hours)
Rejects
(devices)
Chi
Square
Acceleration
Factor
FIT @ T use
MTBF @ T
use (hours)
FLS3247N 0.7 0.6 55 150 8.62E-05 1490272.45 0 1.83 259.24 2.37
Run new FIT calculation
4.22E8