FL77905 Series

Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver

Catalog

Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver

Part	Number of Outputs	Voltage - Supply (Max) [Max]	Dimming	Type	Mounting Type	Supplier Device Package	Applications	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output / Channel [custom]	Current - Output / Channel [custom]	Current - Output / Channel [custom]	Voltage - Supply (Min) [Min]	Package / Case	Package / Case	Package / Case	Internal Switch(s)	Voltage - Output
ON Semiconductor FL77905MX	3	305 VAC	Analog PWM TRIAC	AC DC Offline Switcher	Surface Mount	8-SOP	Lighting	-40 °C	125 ¯C	93.8 mA	53.6 mA	104.2 mA	90 VAC	0.154 in	8-SOIC	3.9 mm		18 V
ON Semiconductor FL77905MX	3	305 VAC	Analog PWM TRIAC	AC DC Offline Switcher	Surface Mount	8-SOP	Lighting	-40 °C	125 ¯C	93.8 mA	53.6 mA	104.2 mA	90 VAC	0.154 in	8-SOIC	3.9 mm		18 V

Catalog

Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver

Key Features

• The simplest Direct AC LED Driver with Only Two External RC Passive Components

• Wide AC Input Range: 90~305 VAC

• Analog/PWM Dimming

• High Power Factor (above 0.98 in normal configuration) Low Harmonic Content (THD under 20% in normal configuration)

• Low Flicker Index by Self Valley Fill with No Degradation of PF and THD

• Adjustable LED Power with an External Current Sense Resistor

• Rheostat Dimmable Flexible LED Forward Voltage Configuration

• Power Scalability with Multiple Driver ICs

• Over-Temperature Protection (OTP)

Description

The FL77905 is a direct AC line LED driver with 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. It achieves high efficiency with high PF and low THD which makes the FL77905 suitable for high-efficiency LED lighting systems. The FL77905 can also be used with a rheostat dimmer switches which are suitable for desktop or indoor lamps.The FL77905 has a dedicated DIM pin which is designed to be used with analog or digital PWM dimming.