FL77944: Analog/PWM Dimmable High Power LED Direct AC Driver
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The FL77944 is a direct AC line LED driver with a minimal number of external RC passive components. In normal configuration, one resistor is to adjust LED power, and one capacitor is to provide a stable voltage to an internal biasing shunt regulator.
The FL77944 provides phase-cut dimming with wide dimming range, smooth dimming control and good dimmer compatibility. It achieves high efficiency with high PF and low THD, which makes the FL77944 suitable for high-efficiency LED lighting systems. The FL77944 has a dedicated DIM pin which can be used with analog or digital PWM dimming. The FL77944 can also be used with a rheostat dimmer switch which is suitable for desktop or indoor lamps.
Operation of FL77944 admits driving higher-wattage systems, such as street lights and down lights, by simply parallel connecting the driver ICs.
The FL77944 provides phase-cut dimming with wide dimming range, smooth dimming control and good dimmer compatibility. It achieves high efficiency with high PF and low THD, which makes the FL77944 suitable for high-efficiency LED lighting systems. The FL77944 has a dedicated DIM pin which can be used with analog or digital PWM dimming. The FL77944 can also be used with a rheostat dimmer switch which is suitable for desktop or indoor lamps.
Operation of FL77944 admits driving higher-wattage systems, such as street lights and down lights, by simply parallel connecting the driver ICs.
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Technical Documentation & Design Resources
| Design & Development Tools (2) | Package Drawings (1) |
| Application Notes (4) | Evaluation Board Documents (2) |
| Data Sheets (1) |
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description | Action | |
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| FEBFL77944-L80H012A-GEVB |
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12 W Down Light ACLED Driver at High-Line | |||
| FEBFL77944-L80H012B-GEVB | Consult Sales Office |
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12 W Down Light ACLED Driver at High-Line |
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Case Outline |
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| FL77944MX | Last Shipments |
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FL77944, Analog/PWM Dimmable High Power LED Direct AC Driver | SOIC-16 | 751EK | 3 | 260 | Tape and Reel | 2500 | |||||||||
| Market Leadtime (weeks) | : | Contact Factory |
| ON Semiconductor (2020-09-02 00:00) | : | 5,000 |
Case Outlines
751EK
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