Name: Primary-Side-Regulated LED Driver with Power Factor Correction
Brand: Primary-Side-Regulated LED Driver with Power Factor Correction
SKU: FL7733

Primary-Side-Regulated LED Driver with Power Factor Correction

Obsolete

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Overview

This highly integrated PWM controller with advanced Primary-Side Regulation (PSR) technique provides features to enhance the performance of low-to-mid-power LED lighting converter. The FL7733 LED driver is designed with minimum system components while LED current is accurately controlled by ON Semiconductor’s TRUECURRENT® technique and improved feedback loop control. Constant Current (CC) tolerance less than ±1% over the universal line voltage range meets the requirement of highly reliable LED brightness management.
By minimizing turn-on time fluctuation, high power factor, and low THD; <10% THD over the universal line range can be obtained. An integrated high-voltage startup circuit implements fast startup and high system efficiency. During startup, adaptive feedback loop control anticipates the steady-state condition and sets initial feedback condition close to the steady state to ensure no overshoot or undershoot of LED current.
The FL7733 provides powerful protections, such as LED short / open, output diode short, sensing resistor short / open, and over-temperature for high system reliability. The FL7733 controller is available in an 8-pin Small-Outline Package (SOP).

Lighting

High Performance
Cost-Effective Solution without Requiring Input Bulk Capacitor and Secondary Feedback Circuitry
Power Factor Correction
THD <10% Over Universal Line Range
Constant Current Tolerance:
< ±1% Over Universal Line Voltage Variation
< ±1% by 50% - 100% Load Voltage Variation
< ±1% by ±20% Magnetizing Inductance Variation
High-Voltage Startup with V_DD Regulation
Adaptive Feedback Loop Control for Startup without OvershootHigh Reliability
LED Short / Open Protection
Output Diode Short Protection
Sensing Resistor Short / Open Protection
V_DD Over-Voltage Protection (OVP)
V_DD Under-Voltage Lockout (UVLO)
All Protections are Auto Restart (AR)
Over-Temperature Protection (OTP)
Application Input Voltage Range: 80 V_AC - 308 V_AC
Cycle-by-Cycle Current Limit

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FL7733MX

Obsolete

SOIC-8

751EB

260

REEL

2500

PSR Flyback

Price N/A

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AC-DC LED Drivers | FL7733

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