FL6630: Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
Description: This highly integrated PWM controller, FL6630, pro...
This highly integrated PWM controller, FL6630, provides several features to enhance the performance of single-stage flyback converters. The proprietary topology, TRUECURRENT®, enables the simplified circuit design for LED lighting applications.
TRIAC dimming is smoothly managed by dimming brightness control without flicker. By using single-stage topology with primary-side regulation, an LED lighting board can be implemented with few external components and minimized cost. It does not require an input bulk capacitor or feedback circuitry. To implement good power factor and low total harmonic distortion, constant on-time control is utilized with an external capacitor connected to the COMI pin.
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 Discontinuous Conduction Mode (DCM) operation with higher efficiency and simpler design. The FL6630 provides protections such as open-LED, short-LED, and over-temperature protections. Current-limit level is automatically reduced to minimize output current and protect external components in a short-LED condition.
The FL6630 controller is available in an 8-pin Small Outline Package (SOP).
Compatible with Traditional TRIAC Control (No need to change existing lamp infrastructure: wall switch & wire)
Compatible with Non-Dimming Lamp Designs
Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry
Power Factor Correction (PFC)
Accurate Constant-Current (CC) Control, Independent Online Voltage, Output Voltage, Magnetizing Inductance Variation
Line Voltage Compensation for CC Control
Linear Frequency Control for Better Efficiency and Simple Design
Cycle-by-Cycle Current Limiting
Over-Temperature Protection with Auto Restart
Low Startup Current: 20 µA
Low Operating Current: 5 mA
SOP-8 Package Available
Application Voltage Range: 80 VAC ~ 308 VAC
LED Lighting – Low Power – Phase-cut dimming
LED Lighting – High Power – Phase-cut dimming
LED Lighting – Mid Power – Phase-cut dimming
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving, Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
Package Type: SOIC-8
Package Case Outline: 751EB
Container Type: REEL
Container Qty: 2500
PSR PFC Flyback
VI Min (V):
VI Max (V):
VO Max (V):
IO Max (mA):
60/180 - Source/Sink
fSW Typ (kHz):