Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-8.pngHigh performance dimming LED controller
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The AL1665 is a high performance single stage flyback and buckboost controller, targeting dimmable LED lighting application. It is a Primary Side Regulation (PSR) controller which can provide accurate Constant Current (CC) regulation without opto-coupler and secondary control circuitry. It can be operated at BCM mode which results in low EMI and high efficiency, and keeps high Power Factor (PF) and low Total Harmonic Distortion (THD) under universal input voltage.
The AL1665 can support analog/PWM dimming modes. When a 50mV to 2.5V DC signal is applied on ADIM pin, the device will be operated in analog dimming mode. The analog dimming range is 5% to 100%. When a PWM signal is applied to NTC/PWM pin, the device will be operated at PWM dimming mode. The PWM dimming range is 0.5% to 100% (1k PWM dimming frequency).
The AL1665 features low operation current. It integrates multiple protections including overvoltage, short circuit, overcurrent and over-temperature.
The AL1665 is available in SO-8 (Standard) package.
| Minimum Input AC Voltage (VAC) | 85 |
|---|---|
| Maximum Input AC Voltage (VAC) | 305 |
| Maximum DC VDD (VDC) | 18.5 |
| LED Current (mA) | External MOSFET |
| Frequency (kHz) | 80K |
| Accuracy (%) | 1.5 % |
| Efficiency (%) | > 85 % |
| Dimming | PWM, Analog |
| SupplyCurrent (mA) | 2 mA |
| Temperature Range (°C) | '-40 to +105 °C |
