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AL1673

Diodes
Part Number AL1673
Manufacturer Diodes
Description UNIVERSAL FLYBACK AND BUCK-BOOST SINGLE STAGE DIMMABLE LED DRIVER
Published Jun 21, 2019
Detailed Description NOT RECOMMENDED FOR NEW DESIGN NO ALTERNATIVE AL1673 UNIVERSAL FLYBACK AND BUCK-BOOST SINGLE STAGE DIMMABLE LED DRIVER...
Datasheet PDF File AL1673 PDF File

AL1673
AL1673

Overview
NOT RECOMMENDED FOR NEW DESIGN NO ALTERNATIVE AL1673 UNIVERSAL FLYBACK AND BUCK-BOOST SINGLE STAGE DIMMABLE LED DRIVER Description Pin Assignments The AL1673 is a high performance single stage Flyback/Buck-Boost converter, targeting dimmable LED lighting application.
It is operating at BCM mode which results in good EMI and efficiency.
The AL1673 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 AL1673 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/2A high voltage MOSFET.
(Top View) CS 1 GND 2 DRAIN 3 DRAIN 4 8 COMP 7 APWM EP 6 FB 5 VCC SO-8EP The AL1673 is available in SO-8EP package.
Applications Features • 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 • High Efficiency • Tight LED Current Variation Range • Tight Output Open Voltage Variation Range • Integrates 600V/2A 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%; • 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-8EP • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free.
“Green” Device (Note 3) Notes: 1.
No purposely added lead.
Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2.
See http://www.
diodes.
com/quality/lead_free.
html for more information ab...


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