FL7733A: LED Driver with Power Factor Correction, Primary-Side-Regulated
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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).
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).
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Technical Documentation & Design Resources
| Design & Development Tools (2) | Package Drawings (1) |
| Application Notes (3) | Simplis Models (2) |
| Data Sheets (1) |
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Specifications
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Case Outline |
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| FL7733AMX | Active |
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FL7733A, Primary-Side-Regulated LED Driver with Power Factor Correction | SOIC-8 | 751EB | 1 | 260 | Tape and Reel | 2500 | $0.3267
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| Market Leadtime (weeks) | : | 17 to 20 |
Product
Description
Pricing ($/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
A
H
P
Active
PSR PFC Flyback
17.5
308 VAC
18 VGATE
60/180 mA - Source/Sink
70
SOIC-8
Case Outlines
751EB
| Support |