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The AL1672 is a high performance single stage Buck convertor, targeting dimmable LED lighting application. It is operating at BCM mode which results in good EMI and efficiency.
The AL1672 can support multiple dimming modes. When a 0.3~2.4V DC signal is applied on APWM pin, the device will operate in analog dimming mode. When a digital signal is applied on APWM pin, the device works at PWM dimming mode.
The AL1672 features low start-up current and low operation current. It integrates multiple protections including over voltage, short circuit, over current and over temperature protection. It also integrates 600V/4A high voltage MOSFET.
The AL1672 is available in SO-8EP package.
General LED Lighting Driver with Dimming Function
General Purpose Constant Current Source
Smart LED Lighting
Valley Switching for Low Switching Loss
Low Start-Up Current
High PF and Low THD
Tight LED Current Variation Range
Tight Output Open Voltage Variation Range
Integrates 600V/4A MOSFET
Support Both PWM Dimming and Analog Dimming
PWM Dimming Range:3% to 100% at 1kHz PWM Frequency
Analog Dimming and PWM-to-DC Dimming Range:18% to 100%;