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FL7733A: LED Driver with Power Factor Correction, Primary-Side-Regulated

Datasheet: FL7733A Primary-Side-Regulated LED Driver with Power Factor Correction
Rev. A (640kB)
Product Overview
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The FL7733A is a highly-integrated PWM controller with advanced Primary-Side Regulation (PSR) technique to minimize components in low-to-mid-power LED lighting converters.
Using an innovative TRUECURRENT® technology to provide tight tolerance constant-current output, this LED driver enables designs with constant current (CC) tolerance of less than ±1% over the universal line voltage range to meet stringent LED brightness requirements.
By minimizing turn-on time fluctuation, high power factor and low THD over the universal line range are obtained in the FL7733A. 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 FL7733A also provides powerful protections, such as LED short / open, output diode short, sensing resistor short / open, and over-temperature for high system reliability.
The FL7733A controller is available in an 8-pin Small-Outline Package (SOP).
Features
 
  • Performance
  • < ±3% Total Constant Current Tolerance Over All Conditions
  • < ±1% Over Universal Line Voltage Variation
  • < ±1% from 50% to 100% Load Voltage Variation
  • < ±1% with ±20% Magnetizing Inductance Variation
  • Primary-Side Regulation (PSR) Control for Cost-Effective Solution without Requiring Input Bulk Capacitor and Secondary Feedback Circuitry
  • Application Input Voltage Range: 80 VAC - 308 VAC
  • High PF of > 0.9, and Low THD of < 10% Over Universal Line Input Range
  • Fast < 200 ms Start-up (at 85 VAC) using Internal High-Voltage Start-up with VDD Regulation
  • Adaptive Feedback Loop Control for Startup without Overshoot
  • LED Short / Open Protection
  • Output Diode Short Protection
  • Sensing Resistor Short / Open Protection
  • VDD Over-Voltage Protection (OVP)
  • VDD Under-Voltage Lockout (UVLO)
  • All Protections are Auto Restart (AR)
  • Over-Temperature Protection (OTP)
  • Cycle-by-Cycle Current Limit
Applications   End Products
  • Lighting
  • LED Lighting – Mid Power – Non dimming
  • LED Lighting – Mid Power- Analog/PWM dimming
  • LED Lighting – Low Power – Non dimming
  • LED Lighting – Low Power – Analog/PWM dimming
  • LED Lighting – High Power – Non dimming
  • LED Lighting – High Power- Analog/PWM dimming
 
  • LED Lighting
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FL7733AMX Active
Pb-free
Halide free
FL7733A, Primary-Side-Regulated LED Driver with Power Factor Correction SOIC-8 751EB 1 260 Tape and Reel 2500 $0.3267
Market Leadtime (weeks) : 8 to 12
ON Semiconductor   (2020-09-02) : 26,197

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
VI Min (V)
VI Max (V)
VO Max (V)
IO Max (mA)
fSW Typ (kHz)
Package Type
FL7733AMX  
 $0.3267 
Pb
H
 Active   
PSR PFC Flyback
17.5
308 VAC
18 VGATE
60/180 mA - Source/Sink
70
SOIC-8
Case Outlines
751EB   
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