Diodes Incorporated | AL9910ASP-13

The AL9910A high voltage PWM LED driver-controllerprovides an efficient solution for offline high brightness LEDlamps from rectified line voltages ranging from 85VAC up to277VAC. The AL9910A drives external MOSFETs at switchingfrequencies up to 300kHz, with the switching frequencydetermined by a single resistor. The AL9910A topology createsa constant current through the LEDs providing constant lightoutput. The output current is programmed by one externalresistor and is ultimately determined by the externalMOSFET chosen and therefore allows many low currentLEDs to be driven as well as a few high current LEDs. It has operating temperature ranging from –40°C to +85°C,it comes in SO-8EP package.

The AL9910A provides a simple cost effective solution for offline LED lamps.

Features:

• -40 to 85ºC temperature range
• >90% Efficiency
• Universal rectified 85 to 277VAC input range
• Input voltage surge ratings up to 500V
• PWM Low-Frequency Dimming via Enable pin
• 10V MOSFET drive – AL9910A
• Internal Thermal Protection (OTP)

Applications:

• Fluorescent (T8) tube replacements
• LED signage
• Offline AC/DC LED Lamps
• 20mA-1000mA LED currents