FLS3247 - ON Semiconductor

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

FLS3247
Manufacturer

ON Semiconductor
ChipWorker Part#

CW1242852067
Description

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

Datasheet

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Product Description

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
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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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