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onsemi FL7733AMXRoHS

Manufacturer
onsemi
MPN
FL7733AMX
LCSC Part #
C367384
Packaging
SOIC-8
Customer #
Key Attributes
Primary Side Regulation (PSR) LED Driver with Power Factor Correction (PFC)
Datasheetpdf icononsemi FL7733AMX
In-Stock: 757
757 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.23$ 1.23
10+$ 1.0158$ 10.16
30+$ 0.899$ 26.97
100+$ 0.7676$ 76.76
500+$ 0.7091$ 354.55
1,000+$ 0.6816$ 681.60
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
Manufactureronsemi
PackagingSOIC-8
Output Voltage-
FeaturesOver Voltage Protection;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP);High voltage fast start
Frequency - Switching23kHz~75kHz
Switch Tube (Built-In/External)External
Voltage - Input(AC)80VAC~308VAC
Operating temperature-40℃~+125℃
TopologyFlyback;Buck-Boost
Number of Channels1
TypeAC-DC
Output Current-
Constant Current Accuracy3%
Voltage - Input(DC)30V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

FL7733A is a highly integrated PWM controller featuring advanced Primary-Side Regulation (PSR) technology, designed to minimize component count in low-to-medium power LED lighting converters. This LED driver employs innovative TRUECURRENT® technology to achieve tight constant-current output, enabling designs with CC tolerance less than ±1% across universal line voltage range to meet stringent LED brightness requirements. FL7733A achieves high power factor and low THD across the universal line range by minimizing on-time variation. An integrated high-voltage startup circuit enables fast startup and high system efficiency. During startup, adaptive feedback loop control predicts steady-state conditions and sets initial feedback conditions close to steady state, preventing LED current overshoot or undershoot. FL7733A also provides robust protection features including LED short/open circuit, output diode short circuit, sense resistor short/open circuit, and over-temperature protection, ensuring high system reliability. The FL7733 controller is available in an 8-pin Small Outline Package (SOP).

Features

AI Translation
  • Total constant current tolerance < ±3% under all conditions
  • Line regulation < ±1% over universal line voltage range
  • Load voltage variation < ±1% at 50%–100% load
  • ±20% inductance variation < ±1%
  • Primary-side regulation control eliminates bulky input capacitors and secondary feedback circuitry for a cost-effective solution
  • Application input voltage range: 80VAC–308VAC
  • High PF (> 0.9) and low THD (< 10%) over universal line input range
  • Fast startup using internal high-voltage startup with VDD regulation (startup time < 200ms at 85VAC)
  • Overshoot-free startup via adaptive feedback loop control
  • LED short/open circuit protection
  • Output diode short-circuit protection
  • Sense resistor short/open circuit protection
  • VDD OVP
  • VDD UVLO
  • OTP
  • All protection features implemented in auto-restart (AR) mode
  • Cycle-by-cycle current limiting

Applications

AI Translation
  • Low to medium power LED lighting systems from 5 W to greater than 60 W
  • Compatible with analog dimming