FL103

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PSR Flyback PWM Controller for LED Lighting

General Description

This third-generation Primary-Side-Regulation (PSR) and highly integrated PWM controller provides features to enhance the performance of LED illumination.The proprietary topology, TRUECURRENTâ„¢, enables precise CC regulation and simplified circuit for LED illumination applications. The result is lower-cost and smaller LED lighting compared to a conventional design or a linear transformer.To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green mode assists the power supply in meeting the power conservation requirements.By using the FL103, LED illumination can be implemented with few external components and minimized cost.

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention Qualification Support RoHS IPC1752 RoHS/REACH/
JIG Certificate of Compliance
FL103M Full Production Green as of Apr 2011 $0.62 SO 8L NB 8 TAPE REEL PDF Line 1:$Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code) &K
Line 2:FL103
Line 3:MA
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
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Features

  • Low Standby Power: 30mW
  • High-Voltage Startup
  • Few External Component Counts
  • Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
  • Green-Mode: Linearly-Decreasing PWM Frequency
  • Fixed PWM Frequency at 50kHz and 33kHz with Frequency Hopping to Solve EMI Problems
  • Peak-Current-Mode Control in CV Mode
  • Cycle-by-Cycle Current Limiting
  • VDD Over-Voltage Protection (OVP)
  • VDD Under-Voltage Lockout (UVLO)
  • Adjustable Brownout Detector
  • Gate Output Maximum Voltage Clamped at 15V
  • Thermal Shutdown (TSD) Protection
  • Available in the 8-Lead SOIC Package

Applications

  • Lighting

Application Notes

Reference Designs


Application Document Number Featured Products Output
Power
Input
Voltage
Topology
LED Lighting RD-L015 FL103 8.4W 85-265VAC Low BOM PSR Flyback
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