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AL1663R

OFFLINE, SINGLE STAGE FLYBACK AND BUCK-BOOST CONTROLLER,WITH MULTIPLE DIMMING INTERFACES FOR LED DRIVER

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Description

The AL1663R is a high performance single stage Flyback and Buck-boost controller, targeting dimmable LED lighting application. It is a primary side regulation (PSR) controller which can provide accurate constant current (CC) regulation without optocoupler and secondary control circuitry. It is operating at BCM mode which results in good EMI and efficiency, and keeps high PF and low total harmonic distortion (THD) under universal input voltage.

The AL1663R can support multiple dimming modes. When a 0.3 to 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 AL1663R features low start-up current and low operation current. It integrates multiple protections including over voltage, short circuit, over current and over temperature protection.

The AL1663R is available in SO-8 package.

Application

  • General LED Lighting Driver with Dimming Function
  • General Purpose Constant Current Source
  • LED Backlighting Driver
  • Smart LED Lighting

Features

  • Primary Side Regulation without Opto-coupler
  • Valley Switching for Low Switching Loss
  • Low Start-up Current
  • High PF and Low THD
  • High Efficiency
  • Tight LED Current Variation Range
  • Tight Output Open Voltage Variation Range
  • Support both PWM Dimming and Analog Dimming
  • Internal Protections
  • Under Voltage Lock Out (UVLO)
  • Output Over Voltage Protection (OVP)
  • Output Short Protection (OSP)
  • Over Current Protection (OCP)
  • Thermal Fold-back Protection (TFP)
  • Over Temperature Protection (OTP)
  • Low System Cost
  • Package: SO-8

Product Specifications

Product Parameters

Minimum Input AC Voltage (VAC) 85
Maximum Input AC Voltage (VAC) 305
Maximum DC VDD (VDC) 30
LED Current (mA) N/A
Frequency (kHz) 150
Accuracy 6 %
Efficiency 85 %
Dimming PWM, PWM to DC, and Analog
Supply Current 1 mA
Temperature Range -40 to 105 °C

Related Content

Packages
SO-8

Applications

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AL1663RS-13 Mouser Electronics Inc. 3950 5/26/2020 Buy Now United States
AL1663RS-13 Digi-Key Electronics 3572 5/25/2020 Buy Now United States

FAQs

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