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AL1666 - HIGH PERFORMANCE DIMMABLE LED CONTROLLER

General Description

The AL1666 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.

Key Features

  • It integrates multiple protections including Under Voltage Lock Out (UVLO), Output Over Voltage Protection (OVP), Output Short Circuit Protection (OSP), Over Current Protection (OCP), Winding Short Circuit, Secondary Diode Short, Internal Thermal Fold-Back Protection (TFP) and Over Temperature Protection (OTP). The AL1666 is available in SO-8 (Standard) package. Features.
  • Primary Side Regulation without Opto-Coupler.
  • Valley Switching for Low Switching Loss.
  • Support Analog and PWM.

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Other Datasheets by Diodes Incorporated

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AL1666A HIGH PERFORMANCE DIMMABLE LED CONTROLLER
AL1663 UNIVERSAL FLYBACK AND BUCK-BOOST SINGLE STAGE DIMMABLE LED CONTROLLER
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Full PDF Text Transcription (Reference)

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NEW PRODUCT AL1666 HIGH PERFORMANCE DIMMABLE LED CONTROLLER Description The AL1666 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 is operating at BCM mode which results in good EMI and efficiency, and keeps high PF and low THD under universal input voltage. The AL1666 can support analog/PWM dimming modes. When a 0 to 2.4V DC signal is applied on ADIM pin, the device will operate in analog dimming mode; when a digital signal is applied on PWMD pin and the ADIM pin is connected with hundreds of nF capacitors, the device will work at PWM-to-DC dimming mode.